A device for detecting underground support anchor rods of buildings

Abstract

The present invention relates to the technical field of detection devices, and discloses a detection device for underground support anchor rods of buildings, comprising a wall, wherein a plurality of anchor holes are opened inside the wall, and hollow anchor rods are inserted inside the plurality of anchor holes. According to the present invention, when the internal soil layer structure of the wall is displaced, a 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. At this time, the magnitude of the current flowing between the two conductive rods and the displayed value will be displayed on a display screen. Through this device, when the hollow anchor rod is strained and deformed, construction personnel can be promptly reminded that the soil layer inside the wall is displaced, and the position of the soil layer displacement can be determined based on the voltage, current and resistance per unit length of the conductive rod, so that construction personnel can formulate emergency measures in the first time to avoid the risk of soil layer collapse.

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] During the construction of underground structures, especially deep foundation pits such as underground garages, subway tunnels, and underground commercial spaces, it is often necessary to support the subsurface soil to ensure the safety and stability of the underground structure during construction. Underground support anchors are a commonly used support structure. These anchors are typically inserted into the deep soil layer using materials such as rebar or steel cables. Grout is then injected or other reinforcement methods are used to provide support, preventing collapse or deformation of the foundation pit slope or underground structure.

[0003] The design and construction quality of support anchors are crucial to the safety of underground structures. Therefore, anchor inspection and monitoring are particularly important during underground construction. Anchor inspections are typically used to assess anchoring performance, tension, and long-term stability to ensure they can provide the expected support over the long term.

[0004] After the existing support anchors are installed, strain sensors are installed at the anchor installation locations to monitor in real time whether the anchors are deforming, thereby inferring their stress conditions and status. When displacement occurs within the soil layer, construction workers are unable to observe the displacement and depth of the soil layer in the first place, and are unable to 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:

[0007] A device for detecting underground support anchor rods of a building, comprising a wall, a plurality of anchor holes being opened inside the wall, a hollow anchor rod being inserted into the interior of each of the anchor holes, an anti-slip sleeve being inserted into the interior of the hollow anchor rod, a mounting tube being inserted into the interior of the anti-slip sleeve, a mounting plate being fixedly installed between the inner walls of the mounting tube, a plurality of partitions being fixedly installed at equal intervals on the outer surface of the mounting plate, the circumferential outer surface of the partition being abutted against the inner wall of the mounting tube, the interior of the mounting tube being divided into a plurality of liquid storage cavities by the plurality of partitions, a mounting hole being opened through the upper surface of the mounting plate, a glass sheet being fixedly installed between the inner walls of the mounting hole, a plurality of broken grooves being opened at equal intervals on the upper and lower outer surfaces of the glass sheet, and a plurality of the broken grooves being respectively arranged inside a plurality of liquid storage cavities.

[0008] 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 cylinder. Both 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.

[0009] 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 passes through the outer surface of the circuit board and is slidably installed on it, 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.

[0010] 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 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 close to the conductive rod, and the other end of the square sliding column passes through the outer surface of the mounting shell and is slidably installed therewith. 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. A scale mark is fixedly installed on the outer surface of the circuit board close to the conductive rod, and a spring is provided inside the mounting shell, one end of the spring is fixedly connected to the outer surface of the other side of the slide, and the other end of the spring is fixedly connected to the inner wall of the mounting shell.

[0011] As a further solution of the present invention, a fixing piece is fixedly installed on the other end of the two conductive rods, the diameter of the fixing piece is larger than the diameter of the conductive rod, and the fixing piece is fixedly installed on the bottom wall of the installation cylinder.

[0012] 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 a limiting groove matching the two limiting blocks, and the limiting block is arranged between the inner walls of the limiting groove.

[0013] As a further solution of the present invention, a limit sleeve is provided on the outer surface of the hollow anchor rod away from one end of the shell, and the outer surface of the limit sleeve is symmetrically provided with two planes, and the outer surfaces of the two planes are fixedly installed with anti-retraction springs, and the anti-retraction springs are arranged at an angle.

[0014] As a further solution of the present invention, two openings are symmetrically provided on the circumferential outer surface of the limit sleeve, and tensioning blocks are rotatably installed on the inner walls of the two openings. A conical surface is provided on the inner wall of the tensioning block, and a conical block is provided at one end of the hollow anchor rod close to the tensioning block. The outer surface of the conical block is provided with a conical angle, and the conical angle is matched with the conical surface.

[0015] As a further solution of the present invention, a locking nut is sleeved on the end of the hollow anchor rod away from the limit 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 near the locking nut, and an anti-overflow plug is sleeved on the outer surface of the hollow anchor rod near the pressure plate. A plurality of overflow holes are opened inside the anti-overflow plug.

[0016] As a further solution of the present invention, a plurality of protrusions are equidistantly provided on the circumferential outer surface of the anti-slip sleeve, and the protrusions abut against the inner wall of the hollow anchor rod.

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

[0018] 1. When the internal soil structure of the wall is displaced, the glass sheet will break along the fracture 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. The position of the soil displacement can be determined based on the voltage, current and resistance per unit length of the conductive rod, which facilitates the construction personnel to formulate emergency measures in the first time to avoid the risk of soil collapse.

[0019] 2. When the hollow anchor rod is strained and deformed by the displacement of the soil layer, the conductive rod will bend and deform. When the size position difference between the scale marks at the other ends of the two conductive rods is small, 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 position difference between the scale marks at the other ends of the two conductive rods is large, the displacement direction of the soil layer is inclined to the plane where the center lines of the two conductive rods are located. This device can roughly determine the movement direction of the soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a building underground support anchor detection device proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the wall cross-sectional structure of a building underground support anchor rod detection device proposed by the present invention;

[0022] Figure 3A schematic diagram of a hollow anchor rod of a building underground support anchor rod detection device proposed by the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of a hollow anchor rod of a building underground support anchor rod detection device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of an anti-slip sleeve for a building underground support anchor rod detection device proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the installation tube of a building underground support anchor rod detection device proposed by the present invention;

[0026] Figure 7 This is a schematic cross-sectional view of an installation tube of a building underground support anchor rod detection device proposed by the present invention;

[0027] Figure 8 for Figure 3 A partial enlarged schematic diagram in the middle;

[0028] Figure 9 This is a schematic diagram of the housing of a building underground support anchor rod detection device proposed by the present invention;

[0029] Figure 10 This is a schematic diagram of an arc conductive clamp for detecting underground support anchor rods of buildings proposed by the present invention.

[0030] 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. Tightening 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. Fixed 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

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] Reference Figures 1-10 A device for detecting underground support anchor rods of a building comprises a wall 1, wherein a plurality of anchor holes 2 are opened inside the wall 1, a hollow anchor rod 3 is inserted into the interior of the plurality of anchor holes 2, an anti-slip sleeve 12 is inserted into the interior of the hollow anchor rod 3, a mounting 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 mounting tube 13, a plurality of partitions 18 are fixedly installed on the outer surface of the mounting plate 17 at equal intervals, the circumferential outer surface of the partition 18 abuts against the inner wall of the mounting tube 13, the interior of the mounting tube 13 is divided into a plurality of liquid storage chambers by the plurality of partitions 18, a mounting hole is opened through the upper surface of the mounting plate 17, a glass sheet 19 is fixedly installed between the inner walls of the mounting hole, a plurality of broken grooves 20 are opened at equal intervals on the upper and lower outer surfaces of the glass sheet 19, and a plurality of liquid storage chambers are divided into liquid storage chambers by the plurality of partitions 18, ... 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. Both conductive rods 16 pass through multiple partitions 18 and are slidably mounted thereon. 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 interior 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 passes through the outer surface of the circuit board 23 and is slidably mounted thereon. A battery pack 22 is fixedly mounted on the upper surface of the circuit board 23, and a display screen 24 is fixedly mounted on the upper surface of the circuit board 23.

[0035] 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, it will cause the hollow anchor rod 3 and the installation tube 13 to deform. When the hollow anchor rod 3 is deformed, the installation plate 17 and the glass piece 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 piece 19 is made of glass, which is brittle and has a broken groove 20. The glass piece 19 will break along the broken groove 20. When the glass piece 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. Construction personnel can directly read the value during daily maintenance. When there is a current display, it can be judged that the internal soil structure of the wall 1 has been displaced, and the approximate depth of the soil 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 reminded in time that the soil layer inside the wall 1 has been displaced, and the position of the soil displacement can be determined based on the voltage, current and 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.

[0036] 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. The two mounting shells 25 in a group are symmetrically arranged on both sides of one of the conductive rods 16. A slide 29 is slidably installed on the inner wall of the mounting shell 25. A square slide 30 is fixedly installed on the outer surface of the slide 29 close to the conductive rod 16. The other end of the square slide 30 passes through 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 30. 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 provided inside the mounting shell 25. One end of the spring 28 is fixedly connected to the outer surface of the other side of the slide 29, and the other end of the spring 28 is fixedly connected to the inner wall of the mounting shell 25. The force of the spring 28 causes the arc conductive clip 26 to abut against the outer surface of the conductive rod 16, thereby electrically connecting the conductive rod 16 to the electrical components on the circuit board 23.

[0037] 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 that of the conductive rod 16 . The fixing piece 21 is fixedly mounted on the bottom wall of the mounting tube 13 .

[0038] When the hollow anchor rod 3 is strained and deformed by soil displacement, the conductive rod 16 will bend and deform 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.

[0039] In this embodiment, a limiting assembly is provided between the shell 15 and the hollow anchor rod 3. 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 provided between the inner walls of the limiting groove. When inserting the mounting 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 mounting tube 13 from rotating at will before the cement slurry solidifies.

[0040] In this embodiment, the outer surface of the hollow anchor rod 3 away from the shell 15 is provided with a limit sleeve 4, and the outer surface of the limit sleeve 4 is symmetrically provided with two planes, and the outer surfaces of the two planes are fixedly installed with anti-retraction spring pieces 9, and the anti-retraction spring pieces 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 the end of the hollow anchor rod 3 close to the tensioning block 10 is provided with a conical block 11. The outer surface of the conical block 11 is provided with a conical angle, and the conical angle is matched with the conical surface. The end of the hollow anchor rod 3 away from the limit sleeve 4 is provided with a locking nut 8, and the locking nut 8 is threadedly connected to the hollow anchor rod 3. The outer surface of the hollow anchor rod 3 close to the locking nut 8 is provided with a pressure plate 6, and the outer surface of the hollow anchor rod 3 close to the pressure plate 6 is provided with an anti-overflow plug 5, and the inside of the anti-overflow plug 5 is provided with multiple overflow holes 7.

[0041] The construction worker turns the locking nut 8 with a wrench, so that the locking nut 8 drives the anti-overflow plug 5 and the pressure plate 6 to seal the entrance of the anchor hole 2. The locking nut 8 is continuously turned. When the pressure plate 6 contacts the outer surface of the wall 1, the hollow anchor rod 3 moves toward the outside of the wall 1. At this time, the hollow anchor rod 3 drives the tapered block 11 to move outward. Through the cooperation between the tapered block 11 and the tensioning block 10, the tensioning block 10 is expanded to firmly confine the hollow anchor rod 3 inside the anchor hole 2.

[0042] 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. 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, filling the interior of the anchor hole 2 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 removed through the overflow hole 7 to prevent the cement slurry from becoming hollow.

[0043] 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. Excess cement slurry can be removed through the protrusions on the surface of the anti-slip sleeve 12.

[0044] In this embodiment, the plane where the center lines of the two conductive rods 16 lie coincides 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 perpendicular to the horizontal ground.

[0045] 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 a conductive liquid: such as a 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 and need to be measured when assembling the mounting tube 13; the voltage of the battery pack 22 is a constant value.

[0046] It should be noted that when the present invention is used, the construction workers drill multiple anchor holes 2 inside the wall 1 in advance, and then insert the assembled hollow anchor rod 3 and the limiting sleeve 4 into the anchor hole 2. Then, the construction workers sequentially sleeve the anti-overflow plug 5, the pressure plate 6 and the locking nut 8 on the outer end of the hollow anchor rod 3;

[0047] The construction worker turns the locking nut 8 with a wrench, so that the locking nut 8 drives the anti-overflow plug 5 and the pressure plate 6 to seal the entrance of the anchor hole 2. The locking nut 8 is continuously turned. When the pressure plate 6 contacts the outer surface of the wall 1, the hollow anchor rod 3 moves toward the outside of the wall 1. At this time, the hollow anchor rod 3 drives the tapered block 11 to move outward. Through the cooperation between the tapered block 11 and the tensioning block 10, the tensioning block 10 is expanded to firmly confine the hollow anchor rod 3 inside the anchor hole 2.

[0048] 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 thereof. 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 limiting 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 hollowing.

[0049] After the cement slurry is poured, the construction workers will 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. The ridges on the surface of the anti-slip sleeve 12 can be used to remove excess cement slurry. When inserting the installation tube 13, it is necessary to align the limit block 14 with the limit groove at the end of the hollow anchor rod 3 to prevent the installation tube 13 from rotating freely before the cement slurry solidifies.

[0050] 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, it will cause the hollow anchor rod 3 and the installation tube 13 to deform. When the hollow anchor rod 3 is deformed, the installation plate 17 and the glass piece 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 piece 19 is made of glass, which is brittle and has a broken groove 20. The glass piece 19 will break along the broken groove 20. When the glass piece 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. Construction personnel can directly read the value during daily maintenance. When the current is displayed, it can be judged that the internal soil structure of the wall 1 has been displaced, and the approximate depth of the soil 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 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.

[0051] 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 coating displacement can be judged 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 corresponding to the scale mark 27 is small, the displacement direction of the soil layer is perpendicular to the plane of the center lines of the two conductive rods 16. When the size position difference between the other ends of the two conductive rods 16 corresponding to the scale mark 27 is large, the displacement direction of the soil layer is inclined to the plane of the center lines of the two conductive rods 16. The movement direction of the soil layer can be roughly determined by this device.

[0052] 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 those skilled in the art. It belongs to the common knowledge in the art and is only used without improvement. In addition, the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection are not explained in detail in the present invention.

[0053] 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 above embodiments. The above 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 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), and hollow anchor rods (3) are inserted into the interiors of the plurality of anchor holes (2), characterized in that: The interior of the hollow anchor rod (3) is provided with an anti-slip sleeve (12), and the interior of the anti-slip sleeve (12) is provided with a mounting tube (13), wherein a mounting plate (17) is fixedly installed between the inner walls of the mounting tube (13), and a plurality of partitions (18) are fixedly installed on the outer surface of the mounting plate (17) at equal intervals, and the circumferential outer surface of the partition (18) is against the inner wall of the mounting tube (13), and the interior of the mounting tube (13) is divided into a plurality of liquid storage chambers by the plurality of partitions (18), and a mounting hole is provided through the upper surface of the mounting plate (17), and a glass sheet (19) is fixedly installed between the inner walls of the mounting hole, and a plurality of broken grooves (20) are provided on the upper and lower outer surfaces of the glass sheet (19) at equal intervals, and the plurality of broken grooves (20) are respectively arranged inside the plurality of liquid storage chambers, and the liquid storage chambers are connected to the mounting plate (17). 7) and a glass sheet (19) are divided into an upper cavity and a lower cavity, two conductive rods (16) are symmetrically arranged inside the mounting cylinder (13), and the two conductive rods (16) are both penetrated by a plurality of partitions (18) and slidably mounted therewith, one of the conductive rods (16) is arranged inside the upper cavity, and the other conductive rod (16) is arranged inside the lower cavity, one end of the mounting cylinder (13) is fixedly mounted with a shell (15), the shell (15) is communicated with the interior of the mounting cylinder (13), a circuit board (23) is fixedly mounted on the bottom wall of the shell (15), one end of the two conductive rods (16) is penetrated by the outer surface of the circuit board (23) and slidably mounted therewith, a battery pack (22) is fixedly mounted on the upper surface of the circuit board (23), and a display screen (24) is fixedly mounted on the upper surface of the circuit board (23).

2. A building underground support anchor detection device according to claim 1, characterized in that: Two groups of mounting shells (25) are fixedly mounted on the upper surface of the circuit board (23) in pairs, and the two mounting shells (25) in one group are symmetrically arranged on both 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) close to the conductive rod (16). The other end of the square slide column (30) passes through the outer surface of the mounting shell (25) and is slidably mounted thereon. The other end of the square slide column (30) is fixedly mounted with an arc conductive clip (26), and the arc conductive clip (26) is abutted 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).

3. A building underground support anchor detection device according to claim 1, characterized in that: 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 cylinder (13).

4. A building underground support anchor detection device according to claim 1, characterized in that: A limiting assembly is provided between the shell (15) and the hollow anchor rod (3), the limiting assembly comprising two limiting 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 limiting grooves matching the two limiting blocks (14), and the limiting blocks (14) being arranged between the inner walls of the limiting grooves.

5. A building underground support anchor detection device according to claim 1, characterized in that: The outer surface of the hollow anchor rod (3) at one end away from the housing (15) is provided with a limiting sleeve (4), and the outer surface of the limiting sleeve (4) is symmetrically provided with two planes, and the outer surfaces of the two planes are fixedly mounted with a retaining spring (9), and the retaining spring (9) is arranged at an angle.

6. A building underground support anchor detection device according to claim 5, 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 expansion blocks (10), the inner wall of the expansion block (10) is provided with a conical surface, and the end of the hollow anchor rod (3) close to the expansion 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 provided to match the conical surface.

7. A building underground support anchor detection device according to claim 1, characterized in that: The end of the hollow anchor rod (3) away from the limiting sleeve (4) is sleeved with a locking nut (8), and the locking nut (8) is threadedly connected to the hollow anchor rod (3). The outer surface of the hollow anchor rod (3) close to the locking nut (8) is sleeved with a pressure plate (6), and the outer surface of the hollow anchor rod (3) close to the pressure plate (6) is sleeved with an anti-overflow plug (5), and a plurality of overflow holes (7) are opened inside the anti-overflow plug (5).

8. 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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