A building inspection sampling system

Abstract

The present application discloses a building inspection sampling system, which relates to the technical field of sampling equipment. The system includes a sampling barrel having a storage chamber for storing soil, a drill block for drilling into the soil rotatably connected to one end of the sampling barrel, mounting holes corresponding to various soil layers and connected to the storage chamber are formed on the outer wall of the sampling barrel, the sampling barrel is rotatably connected to a rotating shaft located within the mounting hole, a sampling scoop is provided on the outer circumference of the rotating shaft, and the sampling barrel is provided with a drive assembly, which drives the sampling barrel and the rotating shaft to rotate. When the rotating shaft rotates, the sampling scoop scoops soil into the storage chamber. The present application can improve sampling speed.

Description

Technical Field

[0001] The present application relates to the technical field of sampling equipment, and in particular to a building inspection sampling system. Background Art

[0002] In order to effectively improve the construction quality of the project, a series of sampling and testing work needs to be carried out during the construction process. The sampling scope includes concrete, bricks, sand and gravel, steel bars, disturbed soil, etc.

[0003] At present, when sampling disturbed soil, the sampling point is first determined, then the top layer of soil in the sampling range of the sampling point is removed, and then the required amount of the second layer of soil is selected. Then, after removing the remaining second layer of soil, the required amount of the third layer of soil is selected, and so on until a sufficient number of layers of soil are selected. Finally, the selected soil is mixed, bagged, and waits for testing.

[0004] Regarding the above-mentioned related technologies, the inventors believe that there are the following defects: disturbed soil sampling is carried out in layers, and after each layer of soil is selected, it is necessary to measure the thickness of the soil layer to remove the remaining soil in that layer before sampling the next layer of soil. The whole process is cumbersome and greatly reduces the sampling speed. Summary of the Invention

[0005] In order to increase the sampling speed, the present application provides a building inspection sampling system.

[0006] This application provides a building inspection sampling system, which adopts the following technical solutions:

[0007] A building inspection sampling system includes a sampling barrel, the sampling barrel is provided with a storage cavity for storing soil, one end of the sampling barrel is rotatably connected to a drill block for drilling into the soil, the outer wall of the sampling barrel is provided with mounting holes corresponding to each soil layer and connected to the storage cavity, the sampling barrel is rotatably connected to a rotating shaft located in the mounting hole, a sampling spoon is provided on the outer peripheral side of the rotating shaft, and the sampling barrel is provided with a driving assembly, the driving assembly drives the sampling barrel and the rotating shaft to rotate, and when the rotating shaft rotates, the sampling spoon digs soil into the storage cavity.

[0008] By adopting the above technical solution, when sampling, the sampling tube is pressed so that the drill block drives the sampling tube into the soil. Then, the driving assembly drives the sampling tube and the rotating shaft to rotate. When the rotating shaft rotates, the sampling spoon digs the soil around the sampling tube into the storage chamber. At the same time, the rotation of the sampling tube allows the sampling spoon to sample soil at other locations on the same horizontal plane, reducing the possibility of the sampling spoon continuously sampling the same location and causing the soil at that location to be hollowed out. When the amount of soil in the storage chamber meets the requirement, the sampling tube is pulled out and the soil is dumped out. The whole process is simple and can sample each soil layer relatively quickly, greatly improving the soil sampling speed.

[0009] Optionally, the drive assembly includes a drive gear, a drive rack and a drive shaft, the drive shaft is rotatably connected to the wall of the sampling barrel and is coaxially connected to the rotating shaft, the drive rack is annularly structured and arranged at the top of the drilling block, the drive gear is arranged at the bottom of the drive shaft, and the drive gear is meshed with the drive rack.

[0010] By adopting the above technical solution, the driving shaft drives the rotating shaft to rotate when it rotates, and at the same time, the sampling tube is driven to rotate through the cooperation of the driving gear and the driving rack.

[0011] Optionally, a driving motor for driving the driving shaft to rotate is provided on the top of the sampling cylinder.

[0012] By adopting the above technical solution, the driving motor drives the driving shaft to rotate, reducing the difficulty of rotating the driving shaft.

[0013] Optionally, the rotating shaft is provided with a rotating hole for the driving shaft to pass through, and the rotating hole wall is provided with a first pin hole, the driving shaft is slidably connected with a first pin capable of being inserted into the first pin hole, the driving gear is provided with a driving hole for the driving shaft to pass through, and the hole wall around the driving hole is provided with a second pin hole, the driving shaft is slidably connected with a second pin capable of being inserted into the second pin hole, and a control column is coaxially slidably connected inside the driving shaft, and the control column is provided with a control assembly, when the control column slides toward the drilling block, the control assembly drives the first pin to disengage from the first pin hole and drives the second pin to insert into the second pin hole, when the control column slides away from the drilling block, the control assembly drives the first pin to insert into the first pin hole and drives the second pin to disengage from the second pin hole, and the sampling cylinder is provided with a power assembly that drives the control column to intermittently reciprocate toward or away from the drilling block.

[0014] By adopting the above technical solution, the first pin and the second pin are inserted into the first pin hole and the second pin hole respectively. At this time, the sampling barrel stops rotating when the sampling spoon is sampling, so that the sampling spoon can sample better, and the sampling spoon stops sampling when the sampling barrel rotates, which can reduce the resistance encountered when the sampling barrel rotates.

[0015] Optionally, the control component includes a control block and a control rope, the control block is arranged on the outer peripheral side of the control column and corresponds one-to-one with the first pin and the second pin, the first pin and the second pin are inclined to have a control surface facing the corresponding control block and for the corresponding control block to slide, the control rope corresponds one-to-one with the first pin and the second pin, one end of the control rope is connected to the outer peripheral side of the control column, and the other end of the control rope is connected to the side of the corresponding first pin and the second pin close to the control column.

[0016] By adopting the above technical solution, when the control column is away from the drill block, the first pin can be inserted into the first pin hole, and the second pin can be disengaged from the second pin hole; when the control column is close to the drill block, the second pin can be inserted into the second pin hole, and the first pin can be disengaged from the first pin hole.

[0017] Optionally, the power assembly includes a power block, a power spring and a power column, the power spring is installed in the driving shaft, one end of the power spring abuts against the top of the control column, and the other end abuts against the driving shaft, an annular groove is provided on the top of the drilling block, the power blocks are arranged at intervals along the circumferential direction on the bottom groove wall of the annular groove, a hemispherical slider is provided at the bottom of the control column, the slider protrudes into the annular groove, and when the slider slides on the power block, the control column is driven away from the drilling block, the power column slides up and down on the wall of the sampling barrel, and the sampling barrel is provided with a drive power column protruding into the lowest mounting hole. A pushing spring, a power groove is opened circumferentially on the top of the drilling block, and a pushing block corresponding to the power block is provided on the bottom groove wall of the power groove. The pushing block is inclined to open a pushing surface for the power block to slide. When the power block slides on the pushing surface, the sampling tube and the drilling block rotate relative to each other until the slider slides on the drilling block toward the next adjacent power block. When the slider slides to the top of the power block, the power column is facing the pushing surface. The top of the power column is inclined to open a power surface for the sampling spoon to slide. When the sampling spoon slides on the power surface, it drives the power column to slide downward.

[0018] By adopting the above technical solution, when the slider slides on the power block, the power block pushes the control column to slide away from the drilling block, and when the power column slides on the power surface, the sampling tube and the drilling block rotate relative to each other, so that the slider slides toward the next adjacent power block until the control column is close to the drilling block.

[0019] Optionally, a control groove extending axially is formed on the side wall of the control column, the control block slides in the control groove, and the control column is provided with a connecting spring installed in the control groove, one end of the connecting spring corresponding to the first pin is fixed to the side of the control block away from the first pin, and the other end is fixed to the wall of the control groove, and one end of the connecting spring corresponding to the second pin is fixed to the side of the control block away from the second pin, and the other end is fixed to the wall of the control groove.

[0020] By adopting the above technical solution, when the first latch pin is not aligned with the first latch pin hole or the second latch pin is not aligned with the second latch pin hole, the corresponding connecting spring contracts, so that the control column can maintain the sliding state.

[0021] Optionally, the drilling block is a truncated cone structure, and the outer diameter of the sampling tube is smaller than the end face diameter of the drilling block.

[0022] By adopting the above technical solution, the friction force applied to the sampling tube when it is inserted into the soil is reduced.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. During sampling, the rotating shaft rotates, so that the sampling spoon can sample soil from all soil layers at the same time. The sampling tube rotates during sampling, which can change the sampling position, so that the sampling spoon can sample different positions on the same horizontal plane, thereby improving the soil sampling speed.

[0025] 2. The outer diameter of the sampling tube is smaller than the diameter of the end face of the drill block, so that the friction encountered when the sampling tube is inserted into the soil is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the external structure of an embodiment of the present application;

[0027] Figure 2 is a schematic internal cross-sectional view of an embodiment of the present application;

[0028] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0029] Figure 4 yes Figure 2 An enlarged schematic diagram of part B;

[0030] Figure 5 This is a schematic diagram showing the state of the power column sliding into the power hole according to an embodiment of the present application;

[0031] Figure 6 yes Figure 5 Enlarged schematic diagram of part C.

[0032] Reference numerals: 1, sampling tube; 11, storage chamber; 12, mounting hole; 13, driving motor; 14, driving groove; 15, power hole; 151, limiting groove; 2, drilling block; 21, annular groove; 22, power groove; 221, pushing block; 222, pushing surface; 3, rotating shaft; 31, sampling spoon; 32, rotating hole; 33, first latch hole; 4, driving assembly; 41, driving gear; 411, driving hole; 412, second latch Pin hole; 42, driving rack; 43, driving shaft; 431, first pin; 432, second pin; 433, control surface; 434, moving slot; 44, control column; 441, slider; 442, control slot; 443, connecting spring; 5, control assembly; 51, control block; 52, control rope; 6, power block; 61, power spring; 62, power column; 621, limiting block; 622, push spring; 623, power surface. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The present application embodiment discloses a building detection sampling system. Figure 1 The building inspection sampling system includes a sampling cylinder 1, which is a cylindrical structure. The sampling cylinder 1 is provided with a storage cavity 11. The storage cavity 11 passes through the top end surface of the sampling cylinder 1 to the outside. The soil obtained during sampling is stored in the storage cavity 11.

[0035] See also Figure 1 The sampling tube 1 is rotatably connected to a drilling block 2 on the side away from the opening of the storage chamber 11. The drilling block 2 is a truncated cone-shaped structure, and the diameter of the end of the drilling block 2 facing the sampling tube 1 is larger than the outer diameter of the sampling tube 1. When the sampling tube 1 is pressed during use, the drilling block 2 drills downward into the soil, allowing the sampling tube 1 to be inserted into the soil.

[0036] See also Figure 2 The sampling tube 1 is provided with a mounting hole 12 on its side wall, which is communicated with the storage chamber 11. There are multiple mounting holes 12 and they are evenly spaced along the axial direction. The spacing between adjacent mounting holes 12 is determined according to the spacing requirements of the sampling soil layers.

[0037] See also Figure 2 and Figure 3The sampling tube 1 is rotatably connected to a plurality of rotating shafts 3. The rotating shafts 3 correspond to the mounting holes 12 one by one and are located in the mounting holes 12. The central axis of the rotating shaft 3 is parallel to the central axis of the sampling tube 1. A sampling spoon 31 is fixedly connected to the outer peripheral side of the rotating shaft 3. There are two sampling spoons 31 and they are arranged in an array with an interval of 180 degrees along the circumference. The sampling tube 1 of the present application is suitable for soft geological areas. In the initial state, the sampling spoon 31 is located in the mounting hole 12. After the sampling tube 1 is inserted into the soil, the rotating shaft 3 is rotated so that the sampling spoon 31 rotates to the outside of the mounting hole 12, digs the soil and drives the soil into the storage chamber 11. The head of the sampling spoon 31 is used to hold the soil and is gently curved. When the sampling spoon 31 moves into the storage chamber 11, the soft soil slides into the storage chamber 11 under the action of gravity.

[0038] See also Figure 3 and Figure 4 The sampling tube 1 is provided with a driving assembly 4. When in use, the driving assembly 4 drives the rotating shaft 3 and the sampling tube 1 to rotate, so that the range of soil that the sampling spoon 31 can dig is increased.

[0039] See also Figure 3 and Figure 4 The driving assembly 4 includes a driving rack 42, a driving gear 41 and a driving shaft 43. The driving shaft 43 is rotatably connected to the sampling barrel 1 and is coaxially arranged with the rotating shaft 3. A driving groove 14 with an annular structure and the central axis of the sampling barrel 1 as the center is provided at the bottom of the sampling barrel 1, and the driving shaft 43 extends into the driving groove 14. The driving gear 41 is arranged on the driving shaft 43 and is located in the driving groove 14. The driving rack 42 is in an annular structure and is located in the driving groove 14. The driving gear 41 is engaged with the driving rack 42. When the driving shaft 43 rotates, the driving gear 41 rotates with the driving shaft 43. At this time, the sampling barrel 1 enters a rotating state with the cooperation of the driving rack 42. In order to reduce the difficulty of rotating the rotating shaft 3, a driving motor 13 is fixedly connected to the top of the sampling barrel 1 (the driving motor 13 is Figure 2 The output shaft of the driving motor 13 is fixedly connected to the rotating shaft 3. The driving motor 13 has its own battery. When in use, the driving motor 13 drives the rotating shaft 3 to rotate.

[0040] See also Figure 3 The rotating shaft 3 is provided with a rotating hole 32 extending along the circumferential direction and for the rotating shaft 3 to pass through. Two first latch holes 33 are symmetrically formed on the circumferential side of the hole wall of the rotating shaft 3. Two first connection holes are symmetrically formed on the outer circumference of the driving shaft 43. The driving shaft 43 is provided with a first latch 431. The first latch 431 corresponds to the first connection holes one-to-one and slides radially in the first connection holes. When in use, the first latch 431 is inserted into the first latch hole 33, so that the driving shaft 43 and the rotating shaft 3 are linked.

[0041] See also Figure 4The drive gear 41 has a drive hole 411 in the middle, through which the drive shaft 43 passes. Two second latch holes 412 are symmetrically defined around the periphery of the drive hole 411. Two second connection holes are symmetrically defined around the periphery of the drive shaft 43. The drive shaft 43 is provided with a second latch 432, which slides into the second connection holes and corresponds one-to-one. During operation, the second latch 432 is inserted into the second latch hole 412, enabling the drive gear 41 and the drive shaft 43 to engage with each other.

[0042] See also Figure 3 and Figure 4 A movable slot 434 is defined in the middle of the drive shaft 43. A control column 44 is provided on the drive shaft 43. The control column 44 slides up and down in the movable slot 434 and is coaxially disposed with the drive shaft 43. The control column 44 is provided with a control assembly 5, which includes a control block 51 and a control rope 52. The control block 51 is disposed on the outer periphery of the control column 44 and corresponds one-to-one with the first latch 431 and the second latch 432. A control slot 442 is defined along the circumference of the control column 44. The control block 51 is circumferentially connected to the control slot 442. The control column 44 is provided with a connecting spring 443 corresponding one-to-one with the control slot 442. The connecting spring 443 is installed in the control slot 442. The connecting spring 443 corresponding to the first latch 431 has one end fixed to the side of the control block 51 away from the first latch 431, and the other end fixed to the wall of the control slot 442. The connecting spring 443 corresponding to the second latch 432 has one end fixed to the side of the control block 51 away from the second latch 432, and the other end fixed to the wall of the control slot 442. The control rope 52 corresponds one-to-one with the control block 51 and is inserted into the drive shaft 43. One end of the control rope 52 is fixed to the side of the corresponding first latch 431 and second latch 432 closer to the control column 44, and the other end is fixed to the control block 51. The first latch 431 and the second latch 432 are respectively provided with a control surface 433 inclined near the control column 44. When in use, the control block 51 slides on the control surface 433, so that the control block 51 pushes the first latch 431 into the first latch hole 33 and the second latch 432 into the second latch hole 412.

[0043] See also Figure 3 and Figure 4When the control column 44 moves in the direction away from the drilling block 2, the control rope 52 corresponding to the first latch 431 is relaxed, and the corresponding control block 51 slides on the control surface 433, so that the first latch 431 is inserted into the first latch hole 33. At the same time, when the first latch 431 is not aligned with the first latch hole 33, the connecting spring 443 enters a compressed state until the first latch 431 is aligned with the first latch hole 33. The connecting spring 443 is elastically released, pushing the control block 51 to slide in the direction away from the drilling block 2, so that the first latch 431 is inserted into the first latch hole 33; and when the control column 44 moves away from the drilling block 2, the control block 51 corresponding to the second latch 432 moves away from the second latch 432, and the control rope 52 corresponding to the second latch 432 pulls the second latch 432 out of the second latch hole 412. When the control column 44 slides toward the direction close to the drilling block 2, the control block 51 corresponding to the first latch 431 moves away from the first latch 431, and at the same time, the control rope 52 pulls the corresponding first latch 431 out of the first latch hole 33; and when the control column 44 slides toward the direction close to the drilling block 2, the control rope 52 corresponding to the second latch 432 is relaxed, and the corresponding control block 51 slides on the control surface 433, so that the second latch 432 is inserted into the second latch hole 412. At the same time, when the second latch 432 is not aligned with the second latch hole 412, the connecting spring 443 enters a compressed state until the second latch 432 is aligned with the second latch hole 412. The connecting spring 443 is elastically released, pushing the control block 51 to slide toward the direction close to the drilling block 2, pushing the second latch 432 to be inserted into the second latch hole 412, and at the same time, the corresponding control rope 52 pulls the first latch 431 out of the first latch hole 33.

[0044] See also Figure 4 and Figure 5 The sampling tube 1 is provided with a power assembly for controlling the control column 44 to intermittently reciprocate close to or away from the drill block 2.

[0045] See also Figure 3 and Figure 4 The power assembly includes a power block 6, a power spring 61 and a power column 62 (the power column 62 is Figure 6 The power spring 61 is installed in the movable groove 434 with one end abutting against the top of the control column 44 and the other end abutting against the top groove wall of the movable groove 434.

[0046] See also Figure 3 and Figure 4A ring groove 21 with the central axis of the sampling tube 1 as the center is opened on the top of the drilling block 2, and a slider 441 with a hemispherical block structure is fixedly connected to the bottom of the control column 44. The power spring 61 is elastically released, pushing the control block 51 to slide until the slider 441 protrudes into the ring groove 21 and abuts against the bottom groove wall of the ring groove 21. The power block 6 has multiple power blocks 6 fixed at the bottom groove wall of the annular groove 21 at intervals along the circumferential direction. When the sampling tube 1 rotates, the slider 441 slides in the annular groove 21. When the slider 441 approaches the power block 6 and the sampling tube 1 continues to rotate, the slider 441 slides on the power block 6. At this time, the power block 6 pushes the slider 441 into the moving groove 434, causing the control column 44 to slide away from the drilling block 2 until the slider 441 abuts against the side of the power block 6 away from the bottom groove wall of the annular groove 21. At this time, the second pin 432 disengages from the second pin hole 412, and the first pin 431 is inserted into the first pin hole 33. The sampling tube 1 stops rotating, and the sampling spoon 31 starts to dig soil.

[0047] See also Figure 5 and Figure 6 The bottom wall of the lowest mounting hole 12 is provided with a power hole 15 extending downward to the outside of the sampling tube 1. The power column 62 slides up and down in the power hole 15. A limiting block 621 is provided on the side wall of the power column 62. A limiting groove 151 is provided in the wall of the power hole 15. The limiting block 621 slides in the limiting groove 151. The sampling tube 1 is provided with a push spring 622. The push spring 622 is installed in the limiting groove 151. One end of the push spring 622 abuts against the bottom of the limiting block 621, and the other end abuts against the wall of the limiting groove 151. When in use, the push spring 622 is elastically released, pushing the power column 62 into the lowest mounting hole 12. The power column 62 has a tilted power surface 623 on the side facing away from the drilling block 2. Initially, one of the sampling spoons 31 is located on the side of the power column 62 near the storage chamber 11. As the rotating shaft 3 rotates, the sampling spoon 31 adjacent to the power column 62 rotates away from the power column 62 until it extracts soil, enters the mounting hole 12, and slides against the power surface 623, at which point the power column 62 slides downward. A power groove 22 is formed in an annular structure at the top of the drilling block 2, centered on the central axis of the sampling barrel 1. A push block 221, corresponding to each power block 6, is fixedly attached to the bottom wall of the power groove 22. The push block 221 has a tilted push surface 222 for the power column 62 to slide, forming a right-angled triangle. The push surface 222 forms the inclined side of the right-angled triangle. When the slider 441 abuts the side of the power block 6 facing away from the drilling block 2, the power column 62 is aligned with the push surface 222 away from the bottom wall of the power groove 22.

[0048] See also Figure 4 and Figure 6When the power column 62 is pushed by the sampling spoon 31 to slide toward the drilling block 2, the bottom of the power column 62 slides on the pushing surface 222. At this time, the sampling tube 1 and the drilling block 2 rotate relative to each other, causing the slider 441 to slide toward the next adjacent power block 6 until the slider 441 moves away from the power block 6 and protrudes out of the moving groove 434. At this time, the first latch 431 (the first latch 431 is in Figure 3 (marked in) out of the first latch hole 33 (the first latch hole 33 is Figure 3 When the slider 441 slides to the next adjacent power block 6 until the slider 441 slides into the moving groove 434, the second latch 432 disengages from the second latch hole 412, and the first latch 431 inserts into the first latch hole 33. At this time, the sampling tube 1 stops rotating, and the rotating shaft 3 starts rotating. When the rotating shaft 3 starts rotating, it drives the sampling spoon 31 abutting the power column 62 to slide into the storage chamber 11, so that the last During the rotation, the excavated soil falls into the storage chamber 11, and the other sampling spoon 31 starts to excavate the soil at other positions on the same horizontal plane. At the same time, when the sampling spoon 31 moves away from the power column 62, the spring 622 pushes the power column 62 to protrude into the mounting hole 12. After the power column 62 has excavated the soil, the sampling spoon 31 pushes the power column 62 to slide toward the drilling block 2 again, causing the rotating shaft 3 to stop moving again, and the sampling barrel 1 enters the rotating state again. Similarly, the sampling barrel 1 and the sampling spoon 31 repeat the same movement at intervals.

[0049] The implementation principle of a building inspection sampling system in the embodiment of the present application is as follows:

[0050] When sampling, the drill block 2 is inserted into the soil, and the sampling tube 1 is pressed to insert the drill block 2 and the sampling tube 1 into the soil, and then the drive motor 13 is started. At this time, the rotating shaft 3 and the sampling tube 1 rotate at intervals, so that the sampling spoon 31 stops rotating after sampling, and the sampling tube 1 starts to rotate to the sampling position and stops rotating after changing. Then the sampling spoon 31 starts to rotate for sampling. After sampling, the sampling spoon 31 stops rotating, and the sampling tube 1 starts to enter the rotating state to change the sampling position. Similarly, different positions of the same horizontal plane are continuously sampled until the sampling quantity meets the requirements and the drive motor 13 is stopped. Finally, the sampling tube 1 is pulled out and the obtained soil sample is poured out.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A building inspection sampling system, characterized by: The sampling barrel (1) comprises a storage chamber (11) for storing soil, one end of the sampling barrel (1) is rotatably connected to a drill block (2) for drilling into the soil, an outer wall of the sampling barrel (1) is provided with a mounting hole (12) corresponding to each soil layer and connected to the storage chamber (11), the sampling barrel (1) is rotatably connected to a rotating shaft (3) located in the mounting hole (12), a sampling spoon (31) is provided on the outer peripheral side of the rotating shaft (3), the sampling barrel (1) is provided with a driving assembly (4), the driving assembly (4) drives the sampling barrel (1) and the rotating shaft (3) to rotate, and when the rotating shaft (3) rotates, the sampling spoon (31) digs soil into the storage chamber (11); The driving assembly (4) includes a driving gear (41), a driving rack (42) and a driving shaft (43), wherein the driving shaft (43) is rotatably connected to the wall of the sampling tube (1) and is coaxially connected to the rotating shaft (3), the driving rack (42) is annularly arranged on the top of the drilling block (2), the driving gear (41) is arranged at the bottom of the driving shaft (43), and the driving gear (41) is meshed with the driving rack (42); The rotating shaft (3) is provided with a rotating hole (32) for the driving shaft (43) to pass through, the wall of the rotating hole (32) is provided with a first latch hole (33), the driving shaft (43) is slidably connected with a first latch (431) capable of being inserted into the first latch hole (33), the driving gear (41) is provided with a driving hole (411) for the driving shaft (43) to pass through, the wall of the hole around the driving hole (411) is provided with a second latch hole (412), the driving shaft (43) is slidably connected with a second latch (432) capable of being inserted into the second latch hole (412), a control column (44) is coaxially slidably connected inside the driving shaft (43), the control column (44) A control assembly (5) is provided. When the control column (44) slides toward the drilling block (2), the control assembly (5) drives the first latch (431) to disengage from the first latch hole (33) and drives the second latch (432) to insert into the second latch hole (412). When the control column (44) slides away from the drilling block (2), the control assembly (5) drives the first latch (431) to insert into the first latch hole (33) and drives the second latch (432) to disengage from the second latch hole (412). The sampling tube (1) is provided with a power assembly that drives the control column (44) to intermittently reciprocate in a direction toward or away from the drilling block (2). The control assembly (5) includes a control block (51) and a control rope (52). The control block (51) is arranged on the outer peripheral side of the control column (44) and corresponds to the first latch (431) and the second latch (432) one by one. The first latch (431) and the second latch (432) are inclined to open a control surface (433) facing the corresponding control block (51) and for the corresponding control block (51) to slide. The control rope (52) corresponds to the first latch (431) and the second latch (432) one by one. One end of the control rope (52) is connected to the outer peripheral side of the control column (44), and the other end of the control rope (52) is connected to the side of the corresponding first latch (431) and the second latch (432) close to the control column (44).

2. A building inspection sampling system according to claim 1, characterized in that: A driving motor (13) for driving the driving shaft (43) to rotate is provided on the top of the sampling cylinder (1).

3. A building inspection sampling system according to claim 1, characterized in that: The power assembly includes a power block (6), a power spring (61) and a power column (62), wherein the power spring (61) is installed in the drive shaft (43), one end of the power spring (61) abuts against the top of the control column (44), and the other end abuts against the drive shaft (43), the top of the soil drilling block (2) is provided with an annular groove (21), the power block (6) is arranged at intervals along the circumferential direction on the bottom groove wall of the annular groove (21), the bottom of the control column (44) is provided with a hemispherical slider (441), the slider (441) protrudes into the annular groove (21), and when the slider (441) slides on the power block (6), the control column (44) is driven away from the soil drilling block (2), the power column (62) slides up and down on the wall of the sampling tube (1), and the sampling tube (1) is provided with a push spring (6) that drives the power column (62) to protrude into the lowest mounting hole (12). 22), a power groove (22) is provided on the top of the soil drilling block (2) along the circumferential direction, and a push block (221) corresponding to the power block (6) is provided on the bottom groove wall of the power groove (22), and the push block (221) is tilted to provide a push surface (222) for the power block (6) to slide. When the power block (6) slides on the push surface (222), the sampling tube (1) and the soil drilling block (2) rotate relative to each other until the slider (441) slides on the soil drilling block (2) toward the next adjacent power block (6). When the slider (441) slides to the top of the power block (6), the power column (62) faces the push surface (222). The top of the power column (62) is tilted to provide a power surface (623) for the sampling spoon (31) to slide. When the sampling spoon (31) slides on the power surface (623), the power column (62) is driven to slide downward.

4. A building inspection sampling system according to claim 1, characterized in that: The side wall of the control column (44) is provided with a control groove (442) extending in the axial direction, the control block (51) slides in the control groove (442), and the control column (44) is provided with a connecting spring (443) installed in the control groove (442), one end of the connecting spring (443) corresponding to the first latch (431) is fixed to the side of the control block (51) away from the first latch (431), and the other end is fixed to the groove wall of the control groove (442), and one end of the connecting spring (443) corresponding to the second latch (432) is fixed to the side of the control block (51) away from the second latch (432), and the other end is fixed to the groove wall of the control groove (442).

5. A building inspection sampling system according to claim 1, characterized in that: The soil drilling block (2) is a truncated cone structure, and the outer diameter of the sampling tube (1) is smaller than the end face diameter of the soil drilling block (2).

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