A wall sampling device for building safety appraisal

Abstract

The utility model relates to a kind of wall sampling device for housing safety appraisal, belong to the technical field of housing safety appraisal.The existing technology is inconvenient to operate when the problem of wall multiple-point sampling is solved.The device includes a driving device and a drill cylinder, the output end of the driving device is connected to the drill cylinder, and further includes a longitudinal positioning bracket, a transverse positioning bracket and a driving device bracket.The longitudinal positioning bracket includes a first track and a first positioning seat, the first track is fixed to the wall surface, and the first positioning seat is slidably connected to the first track.The transverse positioning bracket includes a second track and a second positioning seat, the second track is connected to the first positioning seat, and the second positioning seat is slidably connected to the second track.The driving device bracket includes a third track and a sliding seat, the third track is connected to the second positioning seat, and the third track is perpendicular to the wall surface.The sliding seat is slidably connected to the third track.The driving device is detachably mounted on the sliding seat.The utility model is used for wall drilling sampling, and has the advantage of conveniently adjusting the drilling position.

Description

Technical Field

[0001] This utility model relates to the technical field of building safety assessment, and in particular to a wall sampling device for building safety assessment. Background Technology

[0002] In building safety assessments, sampling and testing of concrete components is crucial for evaluating the structural safety and durability of a building. Core drilling, a commonly used sampling method, involves drilling samples from concrete components using a core drill to test the compressive strength of the concrete. This reflects the strength and internal defects of the concrete components, providing a scientific basis for the overall safety of the building.

[0003] When sampling walls, multiple samples are typically drilled for safety assessment to comprehensively and accurately reflect the wall's characteristics. Traditional core drills are usually equipped with a support frame, one end of which is fixed to the wall with expansion bolts to ensure stability during drilling. However, when sampling needs to be done in a different location, the operator must remove the support frame from the wall and then reinstall it at the new location. This process is not only time-consuming but also increases the operator's workload and reduces overall work efficiency. Utility Model Content

[0004] To address the inconvenience of traditional core drilling machines when sampling multiple points in walls, the purpose of this invention is to provide a wall sampling device for building safety assessment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wall sampling device for building safety assessment includes a drive unit 1 and a drill barrel 2, the drill barrel 2 being connected to the output end of the drive unit 1. It also includes a longitudinal positioning bracket 3, a transverse positioning bracket 4, and a drive unit bracket 5. The longitudinal positioning bracket 3 includes a first track 31 and a first positioning seat 32. The first track 31 is connected to the wall surface, and the first positioning seat 32 is slidably connected to the first track 31. The transverse positioning bracket 4 includes a second track 41 and a second positioning seat 42. The end of the second track 41 is detachably connected to the first positioning seat 32, and the second positioning seat 42 is slidably connected to the second track 41. The first track 31 is perpendicular to the second track 41. The drive unit bracket 5 includes a third track 51 and a sliding seat 52. The end of the third track 51 is detachably connected to the second positioning seat 42, and the third track 51 is perpendicular to the wall surface. The sliding seat 52 is slidably connected to the third track 51. The drive unit 1 is detachably mounted on the sliding seat 52. The drill barrel 2 is parallel to the third track 51.

[0007] Furthermore, the first track 31 is provided with a first mounting hole 311, and the first track 31 is connected to the wall by an expansion bolt. The first mounting hole 311 is used to pass through the expansion bolt.

[0008] Furthermore, the first positioning seat 32 includes a first seat body 321 and a first connector 322. The first connector 322 is connected to the side wall of the first seat body 321 away from the wall, and the end of the second track 41 is installed in the first connector 322.

[0009] Furthermore, the first track 31 is provided with a first gear track 312; the first positioning seat 32 also includes a first rotating shaft 323, a first rotating handle 324 and a first fastening knob 325, and the first seat body 321 is sleeved on the first track 31; the first rotating shaft 323 is rotatably mounted on the first seat body 321, and a gear is provided on the first rotating shaft 323, which meshes with the first gear track 312; the first rotating handle 324 is mounted on the first rotating shaft 323; a screw hole is opened on the side wall of the first seat body 321 away from the wall, and a screw is provided on the first fastening knob 325, which is installed in the screw hole and can abut against the side wall of the first track 31.

[0010] Furthermore, it also includes a support 6, which includes a second connector 61, a threaded rod 62, and a pad 63. The other end of the first track 31 is detachably installed in the second connector 61. The threaded rod 62 is connected to the side wall of the second connector 61 near the wall. The pad 63 is provided with a threaded rod hole, the threaded rod 62 is installed in the threaded rod hole, and the pad 63 abuts against the wall.

[0011] Furthermore, the second positioning seat 42 includes a connecting plate 421, a limiting plate 422, and a second fastening knob 423. The limiting plate 422 is connected to the side wall of the connecting plate 421 near the wall and forms a limiting channel with the connecting plate 421. The second track 41 is installed in the limiting channel. The connecting plate 421 is provided with a screw hole, and the second fastening knob 423 is provided with a screw rod. The screw rod is installed in the screw hole and can abut against the side wall of the second track 41.

[0012] Furthermore, the drive device bracket 5 also includes a fixing base 53, which includes a fixing plate 531 and a third connecting member 532. The third connecting member 532 is connected to the fixing plate 531. The fixing plate 531 is detachably connected to the side wall of the connecting plate 421 away from the wall. The end of the third track 51 is installed in the third connecting member 532. The fixing plate 531 is provided with a second mounting hole 533, and the screw provided on the second fastening knob 423 passes through the second mounting hole 533.

[0013] Furthermore, a second gear track 511 is provided on the third track 51; the sliding seat 52 includes a third seat body 521, a second rotating shaft 522, a second rotating handle 523, and a sleeve 524. The third seat body 521 is sleeved on the third track 51; the second rotating shaft 522 is rotatably mounted on the third seat body 521, and a gear is provided on the rotating shaft 522, which meshes with the second gear track 511; the second rotating handle 523 is mounted on the second rotating shaft 522; the sleeve 524 is connected to the top of the third seat body 521, and the sleeve 524 is used to install the drive device 1.

[0014] Furthermore, it also includes a first handle 7 and a second handle 8, the first handle 7 being mounted on one side wall of the drive device 1, and the second handle 8 being detachably mounted on the other side wall of the drive device 1.

[0015] Furthermore, it also includes a valve 9, which is connected to the outer wall of the drive device 1; a water supply channel is provided inside the drive device 1, one end of which extends to the output end of the drive device 1 and is connected to the inside of the drill barrel 2; the other end of the water supply channel is connected to the valve 9.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) This utility model achieves multi-dimensional positioning adjustment of the drive device through a longitudinal positioning bracket, a transverse positioning bracket, and a drive device bracket. After the longitudinal positioning bracket is fixedly connected to the wall, the transverse positioning bracket can be adjusted longitudinally along the longitudinal positioning bracket, while the drive device bracket can be adjusted laterally along the transverse positioning bracket. After determining the sampling position, the operator can perform drilling operations by operating the drive device on the drive device bracket. This structural design allows for the positioning of different sampling points without repeatedly disassembling the bracket when performing multi-point sampling, which reduces the physical exertion of the operator and improves work efficiency, making it particularly suitable for testing scenarios that require continuous multi-point sampling.

[0018] (2) This utility model is equipped with a fixed base, and the third track is connected to the second positioning base through the fixed base, and the fixed base and the second positioning base are detachably connected. When performing single-point sampling, the drive device bracket can be independently disassembled and assembled, and directly anchored to the wall using the second mounting hole opened on the fixed base. In multi-point sampling scenarios, linkage positioning is achieved through the longitudinal positioning bracket and the transverse positioning bracket. This design enables the device to have both single-unit use and combination expansion capabilities, significantly improving the adaptability of the device to different application scenarios. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of a wall sampling device for building safety assessment according to this utility model.

[0020] Figure 2 This is a side view of the overall structure of a wall sampling device for building safety assessment according to this utility model.

[0021] Figure 3 This is a structural diagram of the longitudinal positioning bracket and the transverse positioning bracket of a wall sampling device for building safety assessment according to this utility model.

[0022] Figure 4 This is a structural schematic diagram of the drive device, drill cylinder, and drive device bracket of a wall sampling device for building safety assessment according to this utility model.

[0023] Figure 5 This is a schematic diagram of the drive device and drill cylinder of a wall sampling device for building safety assessment according to this utility model.

[0024] Figure 6 This is a structural schematic diagram of the support for a wall sampling device for building safety assessment according to this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the second positioning seat of a wall sampling device for building safety assessment according to this utility model.

[0026] In the attached diagram: 1. Drive unit; 2. Drill barrel; 3. Longitudinal positioning bracket; 31. First track; 311. First mounting hole; 312. First gear track; 32. First positioning seat; 321. First seat body; 322. First connecting piece; 323. First rotating shaft; 324. First rotating handle; 325. First fastening knob; 33. Connecting seat; 4. Lateral positioning bracket; 5. Drive unit bracket; 41. Second track; 42. Second positioning seat; 421. Connecting plate; 422. Limiting plate; 423. Second fastening knob; 51, Third track; 511, Second gear track; 52, Sliding seat; 521, Third seat body; 522, Second rotating shaft; 523, Second rotating handle; 524, Clip; 525, Third fastening knob; 53, Fixed seat; 531, Fixed plate; 532, Third connecting piece; 533, Second mounting hole; 6, Support; 61, Second connecting piece; 62, Threaded rod; 63, Pad; 7, First handle; 8, Second handle; 9, Valve; 10, Third handle; 11, Battery. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0028] Please refer to Figures 1 to 7The diagram illustrates a wall sampling device for building safety assessment, comprising a drive unit 1 and a drill barrel 2. The drill barrel 2 is connected to the output end of the drive unit 1, and the drill barrel 2 and the output end of the drive unit 1 are detachably connected by threads. It also includes a longitudinal positioning bracket 3, a transverse positioning bracket 4, and a drive unit bracket 5. The longitudinal positioning bracket 3 includes a first track 31 and a first positioning seat 32. The first track 31 is connected to the wall surface, and the first positioning seat 32 is slidably connected to the first track 31. The transverse positioning bracket 4 includes a second track 41 and a second positioning seat 42. The end of the second track 41 is detachably connected to the first positioning seat 32, and the second positioning seat 42 is slidably connected to the second track 41. The projections of the first track 31 and the second track 41 onto the wall surface are perpendicular. The drive unit bracket 5 includes a third track 51 and a sliding seat 52. The end of the third track 51 is detachably connected to the second positioning seat 42, and the third track 51 is perpendicular to the wall surface. The sliding seat 52 is slidably connected to the third track 51. The drive unit 1 is detachably mounted on the sliding seat 52. The drill barrel 2 is parallel to the third track 51.

[0029] Furthermore, in a preferred embodiment, a first mounting hole 311 is provided on the first track 31, and the first track 31 is connected to the wall by an expansion bolt. The first mounting hole 311 is used to pass through the expansion bolt. Preferably, two first mounting holes 311 are provided on the first track 31, and the two first mounting holes 311 are respectively provided at both ends of the first track 31.

[0030] Furthermore, in a preferred embodiment, the first positioning seat 32 includes a first seat body 321 and a first connector 322. The first connector 322 is connected to the side wall of the first seat body 321 away from the wall. The end of the second track 41 is mounted on the first connector 322. A first mounting groove is provided on the first connector 322, and the end of the second track 41 is mounted in the first mounting groove. Preferably, the end of the second track 41 is connected to the first connector 322 by two bolts. The two bolts are parallel to each other and penetrate vertically through the side wall of the first connector 322 and the first seat body 321. Both the left and right ends of the second track 41 can be connected to the first connector 322 by bolts. By adjusting the installation position of the second track 41, the left and right sides of the longitudinal positioning bracket 3 can be flexibly swapped for sampling.

[0031] Furthermore, in a preferred embodiment, a first gear track 312 is provided on the first track 31; the first positioning seat 32 further includes a first rotating shaft 323, a first rotating handle 324, and a first fastening knob 325; the first seat 321 is sleeved on the first track 31; the first rotating shaft 323 is rotatably mounted on the first seat 321, and a gear is provided on the first rotating shaft 323, the gear meshing with the first gear track 312; the first rotating handle 324 is mounted on the first rotating shaft 323 and is used to control the rotation of the first rotating shaft 323. When the first rotating handle 324 is rotated, it can drive the gear on the first rotating shaft 323 to rotate, and the gear meshes with the first gear track 312, thereby enabling the first positioning seat 32 to rotate. A positioning seat 32 moves on the first track 31, thereby driving the horizontal positioning bracket 4 to move up and down. Since the horizontal positioning bracket 4 is affected by its own weight, it is easier to operate by rotating the first rotating handle 324 to move the horizontal positioning bracket 4. A screw hole is opened on the side wall of the first seat 321 away from the wall. A screw is provided on the first fastening knob 325. The screw is installed in the screw hole. When the first fastening knob 325 is tightened, the screw can abut against the side wall of the first track 31. The position of the first seat 321 can be fixed by the static friction between the screw and the side wall of the first track 31. The position of the first seat 321 can also be fixed by locking the first fastening knob 325.

[0032] Furthermore, in a preferred embodiment, the longitudinal positioning bracket 3 further includes a connecting seat 33, which is installed at the end of the first track 31; a first mounting hole 311 is provided on the connecting seat 33, the connecting seat 33 is in contact with the wall, and the connecting seat 33 supports the first track 31 so that the first seat body 321 does not contact the wall, so as to facilitate the movement of the first seat body 321; the connecting seat 33 is detachably installed at the end of the first track 31, which makes it easy for the first seat body 321 to be fitted onto or removed from the first track 31.

[0033] Furthermore, in a preferred embodiment, a support 6 is also included. The support 6 includes a second connector 61, a threaded rod 62, and a pad 63. The other end of the first track 31 is detachably mounted on the second connector 61. A second mounting groove is provided on the second connector 61, and the other end of the first track 31 is detachably mounted in the second mounting groove. The threaded rod 62 is connected to the side wall of the second connector 61 near the wall. A threaded rod hole is provided on the pad 63, and the threaded rod 62 is installed in the threaded rod hole, with the pad 63 abutting against the wall. Preferably, the pad 63 is provided with... The rubber layer contacts the wall to enhance the shock absorption effect; the transverse positioning bracket 4 is located on the side of the longitudinal positioning bracket 3 away from the wall, and neither the second track 41 nor the second positioning seat 42 contacts the wall; one end of the transverse positioning bracket 4 is fixed to the longitudinal positioning bracket 3, and the other end of the transverse positioning bracket 4 abuts against the wall through the support 6; the front and rear positions of the shim 63 can be adjusted by rotating the shim 63. During installation, the shim 63 is pressed tightly against the wall, so that the support 6 can support the transverse positioning bracket 4, which enhances the stability of the transverse positioning bracket 4 during drilling.

[0034] Furthermore, in a preferred embodiment, a support rod assembly is also included. One end of the support rod assembly is threadedly installed at the bottom of the second positioning seat 42; the other end of the support rod assembly rests against the ground. The support rod assembly enhances the stability of the lateral positioning bracket 4. Preferably, the support rod assembly is an adjustable-length telescopic rod. The support rod assembly includes a threaded rod and a threaded cylinder. The threaded rod and the threaded cylinder are threadedly connected, and the length of the support rod assembly can be adjusted by screwing.

[0035] Furthermore, in a preferred embodiment, the second positioning seat 42 includes a connecting plate 421, a limiting plate 422, and a second fastening knob 423. The limiting plate 422 is connected to the side wall of the connecting plate 421 near the wall and forms a limiting channel with the connecting plate 421. The second track 41 is installed in the limiting channel, and the limiting channel matches the second track 41. The second positioning seat 42 can slide on the second track 41. The connecting plate 421 is provided with a screw hole, and the second fastening knob 423 is provided with a screw. The screw is installed in the screw hole. When the second fastening knob 423 is turned, the screw can abut against the side wall of the second track 41. The position of the connecting plate 421 can be fixed by the static friction between the screw and the side wall of the second track 41.

[0036] Furthermore, in a preferred embodiment, a slide is provided on the second track 41, and a ball bearing is installed on the inner wall of the limiting channel, with the ball bearing matching the slide.

[0037] Furthermore, in a preferred embodiment, the drive device bracket 5 further includes a fixing seat 53. The end of the third track 51 is connected to the second positioning seat 42 via the fixing seat 53. The fixing seat 53 includes a fixing plate 531 and a third connecting member 532, which is connected to the fixing plate 531. The fixing plate 531 and the side wall of the connecting plate 421 away from the wall are detachably connected. The detachable connection between the end of the third track 51 and the second positioning seat 42 facilitates the storage and transportation of the device. Each corner of the fixing plate 531 is provided with a through hole, and each corner of the connecting plate 421 is provided with a through hole. Each has a through hole, and the through holes of the fixing plate 531 correspond one-to-one with the through holes of the connecting plate 421 and are connected by bolts; the end of the third track 51 is installed on the third connector 532; the third connector 532 has a third mounting groove, and the end of the third track 51 is installed in the third mounting groove; the fixing plate 531 has a second mounting hole 533, and the screw on the second fastening knob 423 passes through the second mounting hole 533; when single-point sampling is required, the drive device bracket 5 can be used independently, and it can be directly anchored to the wall using the second mounting hole 533 on the fixing base 53.

[0038] Furthermore, in a preferred embodiment, a second gear track 511 is provided on the third track 51; the sliding seat 52 includes a third seat body 521, a second rotating shaft 522, a second rotating handle 523, and a sleeve 524, with the third seat body 521 sleeved on the third track 51; the second rotating shaft 522 is rotatably mounted on the third seat body 521, and a gear is provided on the rotating shaft 522, meshing with the second gear track 511; the second rotating handle 523 is mounted on the second rotating shaft 522 and is used to control the rotation of the second rotating shaft 522. When the second rotating handle 523 is rotated, it can drive the gear on the second rotating shaft 522 to rotate, and the gear meshes with the second gear track 511. 511 engages, causing the sliding seat 52 to move on the third track 51, thereby driving the drive device 1 and the drill barrel 2 to drill or remove holes; the clamp 524 is connected to the top of the third seat 521, and the clamp 524 is used to install the drive device 1; the clamp 524 includes an upper clamp and a lower clamp, which are connected by bolts, and the upper and lower clamps enclose a cylindrical limiting channel; a cylindrical limiting part is provided near the output end of the drive device 1, and the cylindrical limiting part is placed in the cylindrical limiting channel, and the upper and lower clamps clamp the cylindrical limiting part; the lower clamp is connected to the third seat 521 by bolts. The drive device 1 is detachably installed on the sliding seat 52, and when it needs to be used alone, the drive device 1 can be removed from the sliding seat 52 for independent use.

[0039] Furthermore, in a preferred embodiment, the sliding seat 52 further includes a third fastening knob 525. A screw hole is provided on the side wall of the third seat 521, and a screw is provided on the third fastening knob 525. The screw is installed in the screw hole. When the third fastening knob 525 is tightened, the screw can abut against the side wall of the third track 51. The position of the third seat 521 can be fixed by the static friction between the screw and the side wall of the third track 51.

[0040] Furthermore, in a preferred embodiment, it also includes a first handle 7 and a second handle 8. The first handle 7 is mounted on one side wall of the drive device 1, and the second handle 8 is detachably mounted on the other side wall of the drive device 1. A screw hole is provided on the other side wall of the drive device 1, and a screw is provided at the end of the second handle 8, with the screw installed in the screw hole.

[0041] Furthermore, in a preferred embodiment, a third handle 10 is also included, which is detachably mounted on the side wall of the drive device 1. The drive device 1 also has two additional screw holes, which are respectively located on two opposing side walls of the drive device 1. A screw is provided at the end of the third handle 10, and the screw can be installed in either of the two screw holes. This wall sampling device adopts a multi-directional handle layout, which can adapt to the usage needs of different scene spaces and meet the personalized usage habits of operators.

[0042] Furthermore, in a preferred embodiment, a valve 9 is also included, which is connected to the outer wall of the drive device 1; a water supply channel is provided inside the drive device 1, one end of which extends to the output end of the drive device 1 and is connected to the drill barrel 2; the other end of the water supply channel is connected to the valve 9, which is connected to a water source, so that water can be injected into the drill barrel 2 during the drilling process, which can cool the drill bit, prevent dust diffusion and improve cutting efficiency.

[0043] Furthermore, in a preferred embodiment, a battery 11 is also included, which is installed at the end of the drive device 1 away from the output end and is electrically connected to the drive device 1.

[0044] Furthermore, in a preferred embodiment, the first track 31, the second track 41, and the third track 51 are all made of steel pipes.

[0045] Furthermore, in a preferred embodiment, the first track 31 has scale lines on the side wall away from the wall for easy and accurate positioning; the second track 41 also has scale lines on the side wall away from the wall for easy and accurate positioning.

[0046] Working principle:

[0047] First, fix the longitudinal positioning bracket 3 to the wall using expansion bolts. Then, install one end of the second track 41 onto the first positioning seat 32 and install the support 6 onto the other end of the second track 41. Select the longitudinal position by moving the first positioning seat 32, and then fix the position of the first positioning seat 32 by tightening the first fastening knob 325. Next, tighten the pad 63 to press it firmly against the wall. Select the transverse position by moving the second positioning seat 42, and then fix the position of the second positioning seat 42 by the second fastening knob 423. Next, connect the end of the third track 51 to the second positioning seat 42 via the fixing seat 53. Connect the drill barrel 2 to the output end of the drive device 1, and then install the drive device 1 onto the sliding seat 52. When drilling, start the drive device 1, and drive the sliding seat 52 towards the wall by rotating the second rotating handle 523, while simultaneously opening the valve 9 to connect the water source. After drilling is completed, the drive unit 1 is removed, the concrete sample is taken out, and then the new position is determined by adjusting the first positioning seat 32 or the second positioning seat 42. Then the drive unit 1 is reinstalled, and drilling can continue.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0049] Based on the above, this utility model also has the following embodiments:

[0050] The longitudinal positioning bracket 3 is replaced by a long rod structure with multiple positioning slots. The multiple positioning slots are evenly spaced along the length of the long rod structure. The end of the second track 41 is detachably connected to any positioning slot by bolts, which can realize the adjustment of the transverse positioning bracket 4 at different heights, thereby positioning the longitudinal position of the drill hole.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wall sampling device for building safety assessment, comprising a driving device (1) and a drill cylinder (2), wherein the drill cylinder (2) is connected to the output end of the driving device (1), characterized in that: It also includes a longitudinal positioning bracket (3), a transverse positioning bracket (4), and a drive device bracket (5). The longitudinal positioning bracket (3) includes a first track (31) and a first positioning seat (32). The first track (31) is connected to the wall, and the first positioning seat (32) is slidably connected to the first track (31). The transverse positioning bracket (4) includes a second track (41) and a second positioning seat (42). The end of the second track (41) is detachably connected to the first positioning seat (32), and the second positioning seat (42) is slidably connected to the first positioning seat (31). The second track (41) is slidably connected; the first track (31) is perpendicular to the second track (41); the drive device bracket (5) includes a third track (51) and a sliding seat (52), the end of the third track (51) is detachably connected to the second positioning seat (42), and the third track (51) is perpendicular to the wall; the sliding seat (52) is slidably connected to the third track (51); the drive device (1) is detachably mounted on the sliding seat (52); the drill barrel (2) is parallel to the third track (51).

2. The wall sampling device for building safety assessment according to claim 1, characterized in that: The first track (31) is provided with a first mounting hole (311), and the first track (31) is connected to the wall by an expansion bolt. The first mounting hole (311) is used to pass through the expansion bolt.

3. The wall sampling device for building safety assessment according to claim 1, characterized in that: The first positioning seat (32) includes a first seat body (321) and a first connector (322). The first connector (322) is connected to the side wall of the first seat body (321) away from the wall. The end of the second track (41) is mounted on the first connector (322).

4. The wall sampling device for building safety assessment according to claim 3, characterized in that: The first track (31) is provided with a first gear track (312); the first positioning seat (32) also includes a first rotating shaft (323), a first rotating handle (324) and a first fastening knob (325), the first seat body (321) is sleeved on the first track (31); the first rotating shaft (323) is rotatably mounted on the first seat body (321), the first rotating shaft (323) is provided with a gear, the gear meshes with the first gear track (312); the first rotating handle (324) is mounted on the first rotating shaft (323); a screw hole is opened on the side wall of the first seat body (321) away from the wall, the first fastening knob (325) is provided with a screw, the screw is installed in the screw hole, and the screw can abut against the side wall of the first track (31).

5. The wall sampling device for building safety assessment according to claim 1, characterized in that: It also includes a support (6), which includes a second connector (61), a threaded rod (62) and a pad (63). The other end of the first track (31) is detachably mounted on the second connector (61). The threaded rod (62) is connected to the side wall of the second connector (61) near the wall. The pad (63) is provided with a threaded rod hole, the threaded rod (62) is installed in the threaded rod hole, and the pad (63) abuts against the wall.

6. The wall sampling device for building safety assessment according to claim 1, characterized in that: The second positioning seat (42) includes a connecting plate (421), a limiting plate (422), and a second fastening knob (423). The limiting plate (422) is connected to the side wall of the connecting plate (421) near the wall and forms a limiting channel with the connecting plate (421). The second track (41) is installed in the limiting channel. The connecting plate (421) is provided with a screw hole, and the second fastening knob (423) is provided with a screw rod. The screw rod is installed in the screw hole and can abut against the side wall of the second track (41).

7. The wall sampling device for building safety assessment according to claim 6, characterized in that: The drive device bracket (5) also includes a fixing seat (53), which includes a fixing plate (531) and a third connector (532). The third connector (532) is connected to the fixing plate (531). The fixing plate (531) is detachably connected to the side wall of the connecting plate (421) away from the wall. The end of the third track (51) is mounted on the third connector (532). The fixing plate (531) is provided with a second mounting hole (533), and the screw on the second fastening knob (423) passes through the second mounting hole (533).

8. The wall sampling device for building safety assessment according to claim 1, characterized in that: The third track (51) is provided with a second gear track (511); the sliding seat (52) includes a third seat body (521), a second rotating shaft (522), a second rotating handle (523), and a sleeve (524). The third seat body (521) is sleeved on the third track (51); the second rotating shaft (522) is rotatably mounted on the third seat body (521), and a gear is provided on the second rotating shaft (522), which meshes with the second gear track (511); the second rotating handle (523) is mounted on the second rotating shaft (522); the sleeve (524) is connected to the top of the third seat body (521), and the sleeve (524) is used to install the drive device (1).

9. The wall sampling device for building safety assessment according to claim 1, characterized in that: It also includes a first handle (7) and a second handle (8), the first handle (7) being mounted on one side wall of the drive device (1) and the second handle (8) being detachably mounted on the other side wall of the drive device (1).

10. The wall sampling device for building safety assessment according to claim 1, characterized in that: It also includes a valve (9), which is connected to the outer wall of the drive device (1); a water supply channel is provided inside the drive device (1), one end of which extends to the output end of the drive device (1) and is connected to the drill barrel (2); the other end of the water supply channel is connected to the valve (9).

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