Aerial work drilling auxiliary device

Abstract

The utility model discloses a high place operation drilling auxiliary device belongs to drilling tool technical field, and the dust collecting cover and the organism are installed on the lifting support, and the dust collecting cover and the organism are driven lifting support and are lifted, and the accommodating groove is seted up in the top of dust collecting cover, and the flexible water suction ring is equipped in the accommodating groove, and the top surface of flexible water suction ring is higher than the top surface of dust collecting cover, and the flexible water suction ring will first step and contacts the drilling surface, and then the dust collecting cover continues to rise until and contacts the drilling surface, thereby making the flexible water suction ring compression and extruding the mark liquid in the flexible water suction ring, and the mark liquid is absorbed by the drilling surface and leaves the mark when contacting the drilling surface, and at this moment, the dust collecting cover and the organism are lowered through the lifting support, and the drilling position of current drill rod can be determined through the mark on the drilling surface, thereby judging whether the current drilling position is accurate, to avoid the deviation of actual drilling position and setting position, and ensure the accuracy when installing the subsequent component.

Description

Technical Field

[0001] This utility model relates to the field of drilling tool technology, specifically to an auxiliary device for drilling at heights. Background Technology

[0002] Post-installation rebar technology is very common on construction sites. Generally, the anchorage of structural column rebars and upper beams is done using post-installation rebar technology. The floor height is generally 3-6 meters. After setting up a working platform, a handheld electric drill is used to drill holes at the bottom of the beam to prepare for subsequent rebar installation. Then, the process is repeated at the next location.

[0003] Traditional methods have two main drawbacks: 1. Low work efficiency, requiring repetitive setup, dismantling, and relocation of work platforms, with each work site involving repetitive tasks. 2. High safety risks, as each work site requires working at heights, increasing the risk of falls from heights.

[0004] For example, Chinese utility model patent CN207533995U provides a high-altitude drilling auxiliary device, belonging to the field of drilling tool technology. It includes a drilling bracket for fixing the drilling tool and a chip collection mechanism for collecting drill cuttings. The drilling bracket includes a support rod, a lifting rod, a first connecting rod, a second connecting rod, and an operating rod. The support rod, lifting rod, first connecting rod, and second connecting rod are hinged in pairs to form a quadrilateral structure. The lower end of the support rod extends out of the quadrilateral structure, and the upper end of the lifting rod extends out of the quadrilateral structure. The operating rod is fixedly connected to the second connecting rod. The chip collection mechanism is fixed to the upper end of the lifting rod. This drilling bracket can replace manual labor for high-altitude work, avoiding the health hazards of drill cuttings to construction workers during direct use of drilling tools. It is flexible and convenient to use, requiring no special actions, and ensures drilling accuracy. Simultaneously, the chip collection mechanism collects the drill cuttings, preventing harm to personnel, equipment, and the environment.

[0005] The aforementioned Chinese utility model patent discloses an auxiliary device for drilling at heights. It uses a parallelogram mechanism to drive the drilling tool to rise, allowing workers to drill above the drilling surface from the ground, thereby improving work efficiency and reducing safety risks. At the same time, a chip collection mechanism is also provided at the top of the lifting rod to collect the drill chips that fall during drilling. However, when the drill rod passes through the chip collection mechanism, it will be blocked by the chip collection mechanism, making it impossible for workers to determine the current drilling position. This can easily cause the drilling position to deviate from the set position, affecting the installation of subsequent components.

[0006] Based on this, the present invention designs an auxiliary device for drilling at heights to solve the above problems. Utility Model Content

[0007] This utility model provides a drilling auxiliary device for high-altitude operations to solve the technical problem that the chip collection mechanism in existing drilling auxiliary devices for high-altitude operations can obstruct the drill rod and make it impossible to determine the drilling position.

[0008] According to one aspect of this utility model, a drilling auxiliary device for high-altitude operations is provided, including a lifting support, a drilling mechanism, and a dust collection mechanism. Both the drilling mechanism and the dust collection mechanism are mounted on the lifting support. The lifting support is used to drive the drilling mechanism and the dust collection mechanism to move up and down. The drilling mechanism includes a drill rod and a body. The body is fixed to the lifting support, and the drill rod is mounted on the body. The body is used to drive the drill rod to rotate and drill. The dust collection mechanism includes a dust collection hood, a movable mounting assembly, and a flexible water-absorbing ring. The dust collection hood is mounted on the lifting support via the movable mounting assembly. The drill rod passes through the dust collection hood from bottom to top, and the top surface of the dust collection hood has an opening for collecting dust. The movable mounting assembly is used to elastically mount the dust collection hood along the drill rod axial direction on the lifting support and to keep the top surface of the dust collection hood at the same height as the top surface of the drill rod. The top surface of the side wall of the dust collection hood has a receiving groove for accommodating the flexible water-absorbing ring, and the top surface of the flexible water-absorbing ring is higher than the top surface of the dust collection hood.

[0009] As a further embodiment of this utility model, a boss structure is fixedly provided on the inner wall of the receiving groove. The boss structure is used to divide the receiving groove into an upper part and a lower part in the axial direction of the drill rod. The upper part of the receiving groove is matched with the size of the flexible water-absorbing ring for accommodating the flexible water-absorbing ring. The lower part of the receiving groove is used to store the marking liquid. The flexible water-absorbing ring extends through the boss structure into the lower part of the receiving groove.

[0010] As a further embodiment of this invention, the flexible water-absorbing ring has a circular structure and is coaxially arranged with the drill rod.

[0011] As a further embodiment of this utility model, the bottom end of the dust collection hood is provided with a circular hole along the axial direction of the drill rod for the drill rod to pass through. A baffle structure surrounding the circular hole is fixedly provided on the bottom surface of the inner cavity of the dust collection hood. The baffle structure is used to prevent the dust collected inside the dust collection hood from entering the circular hole.

[0012] As a further embodiment of this utility model, the top surface of the baffle structure is inclined downward in the radial outward direction along the drill rod to guide dust away from the circular hole.

[0013] As a further embodiment of this utility model, the lifting bracket includes a support rod, a lifting rod, a first connecting rod, and a second connecting rod. The first ends of the first connecting rod and the second connecting rod are hinged to the support rod, and the second ends of the first connecting rod and the second connecting rod are hinged to the lifting rod. The lifting rod is parallel to the support rod, and the first connecting rod is parallel to the second connecting rod, so that the support rod, the lifting rod, the first connecting rod, and the second connecting rod together form a parallelogram mechanism. The bottom end of the support rod extends out of the parallelogram mechanism to support the ground. The top end of the lifting rod extends out of the parallelogram mechanism to install the drilling mechanism and the dust collection mechanism. The end of the first connecting rod or the second connecting rod away from the lifting rod extends out of the parallelogram mechanism to control the lifting of the lifting rod.

[0014] As a further embodiment of this utility model, the movable mounting assembly includes a sliding rod and a return spring. The top end of the lifting rod is provided with a mounting groove along the axial direction of the drill rod. The sliding rod is slidably disposed in the mounting groove along the axial direction of the drill rod. A return spring is pressed between the bottom end of the sliding rod and the bottom end of the mounting groove. The dust collection cover is fixed to the end of the sliding rod that extends out of the mounting groove.

[0015] As a further embodiment of this utility model, a base is fixedly provided at one end of the lifting rod extending out of the parallelogram mechanism, and the machine body is placed on the base and tied to the lifting rod with straps.

[0016] As a further embodiment of this utility model, the lifting rod includes a fixed rod and a movable rod. The fixed rod is used to hinge with the first connecting rod and the second connecting rod. The movable rod is slidably disposed on the fixed rod along the length direction of the fixed rod, and the fixed rod and / or the movable rod are provided with a limiting mechanism for limiting and fixing the movable rod relative to the fixed rod.

[0017] As a further embodiment of this utility model, a handle is provided at one end of the first or second link extending out of the parallelogram mechanism.

[0018] This utility model has the following beneficial effects:

[0019] This device mounts both the dust collection hood and the main body on a lifting support. The lifting support drives the dust collection hood and the main body to rise and fall. A drill rod is installed on the main body and passes through the dust collection hood. When drilling, the falling debris falls into the dust collection hood, preventing debris from falling and ensuring the safety of the operators. A receiving groove is provided at the top of the dust collection hood, containing a flexible water-absorbing ring. The top surface of the flexible water-absorbing ring is higher than the top surface of the dust collection hood. Before drilling, the flexible water-absorbing ring is filled with a marked liquid, and then the dust collection hood is raised. The flexible absorbent ring first contacts the drilled surface, and then the dust collection hood continues to rise until it contacts the drilled surface. This causes the flexible absorbent ring to compress and squeeze out the marking liquid inside. When the marking liquid comes into contact with the drilled surface, it is absorbed and leaves a mark. At this point, the dust collection hood and the machine body are lowered by the lifting bracket, which exposes the mark on the drilled surface. The mark on the drilled surface can be used to determine the current drilling position of the drill rod, thereby judging whether the current drilling position is accurate. This avoids deviations between the actual drilling position and the set position, ensuring the accuracy of subsequent component installation.

[0020] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the drilling mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the dust collection mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the lifting rod structure of this utility model.

[0026] Legend:

[0027] 1. Drill rod; 2. Machine body; 3. Dust collection hood; 4. Flexible water suction ring; 5. Receiving groove; 51. Boss structure; 6. Baffle structure; 7. Support rod; 8. Lifting rod; 81. Fixed rod; 82. Moving rod; 9. First connecting rod; 10. Second connecting rod; 11. Slide rod; 12. Return spring; 13. Mounting groove; 14. Base; 15. Strap; 16. Handle. Detailed Implementation

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a drilling auxiliary device for high-altitude operations, including a lifting support, a drilling mechanism and a dust collection mechanism. The drilling mechanism and the dust collection mechanism are both mounted on the lifting support. The lifting support is used to drive the drilling mechanism and the dust collection mechanism to move up and down. The drilling mechanism is driven to rise by the lifting support to realize drilling on the drilling surface at high altitude. The dust collection mechanism is used to collect the dust generated during the drilling process.

[0030] The drilling mechanism includes a drill rod 1 and a body 2. The body 2 is fixed on the lifting bracket, and the drill rod 1 is mounted on the body 2. The body 2 is used to drive the drill rod 1 to rotate and drill. The drill rod 1 is driven to rotate by the body 2, and then pressure is applied by the lifting bracket to make the drill rod 1 contact the drilling surface to achieve drilling.

[0031] The dust collection mechanism includes a dust collection hood 3, a movable mounting assembly, and a flexible water-absorbing ring 4. The dust collection hood 3 is mounted on the lifting support via the movable mounting assembly. The drill rod 1 passes through the dust collection hood 3 from bottom to top, and the top surface of the dust collection hood 3 has an opening for collecting dust. The movable mounting assembly is used to elastically mount the dust collection hood 3 on the lifting support along the axial direction of the drill rod 1, and to keep the top surface of the dust collection hood 3 at the same height as the top surface of the drill rod 1. The top surface of the side wall of the dust collection hood 3 has a receiving groove 5 for accommodating the flexible water-absorbing ring 4, and the top surface of the flexible water-absorbing ring 4 is higher than the top surface of the dust collection hood 3.

[0032] like Figure 2 As shown, before starting the machine body 2 for drilling, the flexible water-absorbing ring 4 is filled with the marked liquid. Then, the machine body 2 and the dust collection hood 3 are raised by the lifting bracket until the drill rod 1 contacts the drilling surface. Since the movable mounting assembly keeps the top surface of the dust collection hood 3 at the same height as the top surface of the drill rod 1, the dust collection hood 3 and the drill rod 1 will contact the drilling surface simultaneously. Because the top surface of the flexible water-absorbing ring 4 is higher than the top surface of the dust collection hood 3, when the dust collection hood 3 and the machine body 2 rise, the flexible water-absorbing ring 4 will contact the drilling surface before the drill rod 1 and the dust collection hood 3. After the dust collection hood 3 continues to rise after contact with the borehole surface, it will compress the flexible water absorption ring 4, causing the marking liquid in the flexible water absorption ring 4 to overflow and contact the borehole surface. The borehole surface is mostly a concrete wall surface. When the marking liquid comes into contact with the borehole surface, it will be absorbed by the borehole surface and leave a mark. At this time, the dust collection hood 3 and the machine body 2 are lowered by the lifting bracket, and the mark on the borehole surface can be exposed. The current drilling position of the drill rod 1 can be determined by the mark on the borehole surface, so as to determine whether the current drilling position is accurate, so as to avoid the deviation between the actual drilling position and the set position, and ensure the accuracy of subsequent component installation.

[0033] After determining the drilling location, the lifting support drives the machine body 2 and dust collection hood 3 to rise again. At the same time, the machine body 2 is started to drive the drill rod 1 to rotate at high speed. The drill rod 1 and dust collection hood 3 will contact the drilling surface at the same time. Under the action of the lifting force of the lifting support, the drill rod 1 drills the drilling surface. Since the dust collection hood 3 is elastically installed on the lifting support along the axis of the drill rod 1 through the movable mounting component, when the drill rod 1 and the machine body 2 rise, the dust collection hood 3 will fall relative to the drill rod 1 because it cannot continue to rise. This ensures that the dust collection hood 3 can always be in contact with the drilling surface through the top surface without affecting the rise of the machine body 2 and the drill rod 1. The dust generated by the drill rod 1 during the drilling process will be contained in the dust collection hood 3, thereby preventing the dust from escaping and the falling of debris, and ensuring the safety of the workers below.

[0034] Specifically, water is used as the marking liquid. Water evaporates on the drilled surface without leaving a mark, and the cost of use is low.

[0035] Furthermore, a boss structure 51 is fixedly provided on the inner wall of the receiving groove 5. The boss structure 51 is used to divide the receiving groove 5 into an upper part and a lower part in the axial direction of the drill rod 1. The upper part of the receiving groove 5 is matched with the size of the flexible water-absorbing ring 4 for accommodating the flexible water-absorbing ring 4. The lower part of the receiving groove 5 is used to store the marking liquid. The flexible water-absorbing ring 4 extends into the lower part of the receiving groove 5 through the boss structure 51.

[0036] like Figure 3 As shown, in this example, the receiving tank 5 is divided into an upper part and a lower part by the boss structure 51. The upper part is used to place the flexible absorbent ring 4, while the lower part is used to hold the marking liquid. The flexible absorbent ring 4 extends through the boss structure 51 into the lower part of the receiving tank 5. Before use, the lower part of the receiving tank 5 is filled with marking liquid. The flexible absorbent ring 4 can maintain contact with the marking liquid stored in the lower part of the receiving tank 5 when it extends into the lower part of the receiving tank 5. When the flexible absorbent ring 4 located in the upper part of the receiving tank 5 is squeezed to expel the marking liquid, the marking liquid can be adsorbed through the part of the flexible absorbent ring 4 that extends into the lower part of the receiving tank 5 through capillary action, so as to replenish the marking liquid in the flexible absorbent ring 4. When drilling at different locations, the flexible absorbent ring 4 can be reused without having to lower the flexible absorbent ring 4 midway to replenish the marking liquid. This makes the overall device more convenient to use.

[0037] When it is necessary to replenish the labeling liquid into the receiving tank 5, simply remove the flexible absorbent ring 4 from the receiving tank 5 to replenish the labeling liquid into the receiving tank 5.

[0038] Specifically, the flexible water-absorbing ring 4 has a circular structure and is coaxially arranged with the drill rod 1;

[0039] like Figure 2 As shown, the flexible water-absorbing ring 4 has a circular structure. When the flexible water-absorbing ring 4 comes into contact with the drilling surface, it will leave a circular mark on the drilling surface. Since the flexible water-absorbing ring 4 is coaxially set with the drill rod 1, the center of the circular mark is the current drilling position of the drill rod 1. Through the circular structure of the flexible water-absorbing ring 4 and its coaxial setting with the drill rod 1, the drilling position of the drill rod 1 can be determined more quickly by the mark on the drilling surface.

[0040] Furthermore, the bottom end of the dust collection hood 3 is provided with a circular hole along the axial direction of the drill rod 1 for the drill rod 1 to pass through. A baffle structure 6 is fixedly provided on the bottom surface of the inner cavity of the dust collection hood 3, which surrounds the circular hole. The baffle structure 6 is used to prevent the dust collected inside the dust collection hood 3 from entering the circular hole.

[0041] like Figure 3 As shown, a baffle structure 6 is provided on the bottom surface of the inner cavity of the dust collection hood 3, and the baffle structure 6 and the bottom end of the dust collection hood 3 are provided with circular holes along the axial direction of the drill rod 1. The drill rod 1 passes through the circular holes provided on the bottom end of the baffle structure 6 and the dust collection hood 3 and enters the inner cavity of the dust collection hood 3. During the drilling process, debris and dust will be collected in the dust collection hood 3. When the debris falls to the bottom surface of the inner cavity of the dust collection hood 3, it may move towards the center of the bottom surface of the inner cavity of the dust collection hood 3 due to the vibration of the drilling. In order to prevent the debris from contacting the drill rod 1, a baffle structure 6 is provided on the bottom surface of the inner cavity of the dust collection hood 3. The drill rod 1 passes through the baffle structure 6 and is protected by the baffle structure 6, thereby preventing the debris on the bottom surface of the inner cavity of the dust collection hood 3 from moving and contacting the drill rod 1.

[0042] Furthermore, the top surface of the baffle structure 6 is inclined downward in the radial outward direction along the drill rod 1 to guide dust away from the circular hole;

[0043] like Figure 3 As shown, the top surface of the baffle structure 6 is inclined to the horizontal plane. When the drill rod 1 rotates to drill, the debris will fall to the top surface of the baffle structure 6. By tilting the top surface of the baffle structure 6 to the horizontal plane, the falling debris can be guided to move away from the drill rod 1, thereby preventing the debris from entering the round hole and contacting the drill rod 1.

[0044] Specifically, the lifting support includes a support rod 7, a lifting rod 8, a first connecting rod 9, and a second connecting rod 10. The first ends of the first connecting rod 9 and the second connecting rod 10 are hinged to the support rod 7, and the second ends of the first connecting rod 9 and the second connecting rod 10 are hinged to the lifting rod 8. The lifting rod 8 is parallel to the support rod 7, and the first connecting rod 9 is parallel to the second connecting rod 10, so that the support rod 7, the lifting rod 8, the first connecting rod 9, and the second connecting rod 10 together form a parallelogram mechanism. The bottom end of the support rod 7 extends out of the parallelogram mechanism to support the ground, and the top end of the lifting rod 8 extends out of the parallelogram mechanism to install the drilling mechanism and the dust collection mechanism. The end of the first connecting rod 9 or the second connecting rod 10 away from the lifting rod 8 extends out of the parallelogram mechanism to control the lifting of the lifting rod 8.

[0045] like Figure 1 As shown, the support rod 7, lifting rod 8, first connecting rod 9, and second connecting rod 10 are hinged together to form a parallelogram mechanism, supporting the support rod 7 on the bottom surface and keeping it vertical. Then, pressing down one end of the first connecting rod 9 or the second connecting rod 10 that extends out of the parallelogram mechanism will lift the lifting rod 8 upward, thus raising the lifting rod 8. At the same time, the support rod 7 and the lifting rod 8 in the parallelogram mechanism always remain parallel, which can ensure that the lifting rod 8 remains vertical during the raising process, thereby ensuring the accuracy of the final drilling angle.

[0046] In this example, the lifting rod 8 is hinged to the first end of the first connecting rod 9 and the second connecting rod 10, and the support rod 7 is hinged to the second end of the first connecting rod 9 and the second connecting rod 10. The second end of the first connecting rod 9 extends out of the parallelogram mechanism. During operation, the lifting rod 8 can be lifted upward by pressing down the second end of the first connecting rod 9 through the first end of the first connecting rod 9.

[0047] Specifically, the movable mounting assembly includes a slide rod 11 and a return spring 12. The top of the lifting rod 8 is provided with a mounting groove 13 along the axial direction of the drill rod 1. The slide rod 11 is slidably disposed in the mounting groove 13 along the axial direction of the drill rod 1. A return spring 12 is pressed between the bottom end of the slide rod 11 and the bottom end of the mounting groove 13. The dust collection cover 3 is fixed to one end of the slide rod 11 that extends out of the mounting groove 13.

[0048] like Figure 3As shown, the top of the lifting rod 8 is provided with an installation groove 13 along the axial direction of the drill rod 1. The sliding rod 11 is slidably disposed in the installation groove 13 along the axial direction of the drill rod 1. At this time, the sliding rod 11 can drive the dust collection cover 3 to move along the axial direction of the drill rod 1. A return spring 12 is pressed between the bottom end of the sliding rod 11 and the bottom end of the installation groove 13. The return spring 12 is used to keep the top surface of the dust collection cover 3 and the top of the drill rod 1 at the same height, thereby ensuring that the top surface of the dust collection cover 3 and the drill rod 1 contact the drilling surface at the same time. When drilling begins, the dust collection cover 3 will surround the drill rod 1 within it. When the drill rod 1 drills into the drilling surface, the dust collection cover 3 will be pushed to move towards the machine body 2 along the axial direction of the drill rod 1, thereby compressing the return spring 12 installed between the sliding rod 11 and the installation groove 13, realizing the avoidance of the dust collection cover 3, so that the dust collection cover 3 always abuts against the drilling surface.

[0049] Specifically, such as Figure 2 As shown, a base 14 is fixed to one end of the lifting rod 8 that extends out of the parallelogram mechanism. The machine body 2 is placed on the base 14 and tied to the lifting rod 8 by straps 15. The base 14 supports the bottom surface of the machine body 2. When the lifting rod 8 rises and drives the machine body 2 to rise, the base 14 can provide stable support for the machine body 2, preventing the machine body 2 from moving along the axis of the drill rod 1. At the same time, the machine body 2 is tied to the lifting rod 8 by straps 15 to keep the drill rod 1 vertical and prevent the machine body 2 from moving horizontally or tilting.

[0050] Furthermore, the lifting rod 8 includes a fixed rod 81 and a movable rod 82. The fixed rod 81 is used to hinge with the first connecting rod 9 and the second connecting rod 10. The movable rod 82 is slidably disposed on the fixed rod 81 along the length direction of the fixed rod 81. The fixed rod 81 and / or the movable rod 82 are provided with a limiting mechanism for limiting and fixing the movable rod 82 relative to the fixed rod 81.

[0051] Specifically, such as Figure 4 As shown, the adjustment mechanism includes a pin and adjustment holes on the fixed rod 81 and the moving rod 82. At least one of the fixed rod 81 and the moving rod 82 has multiple adjustment holes, which are arranged along the axial direction of the drill rod 1. The position of the moving rod 82 on the fixed rod 81 is adjusted by inserting the pin after aligning the different adjustment holes on the fixed rod 81 and the moving rod 82.

[0052] Furthermore, such as Figure 1 As shown, a handle 16 is provided at one end of the first link 9 or the second link 10 extending out of the parallelogram mechanism to facilitate operation by the staff.

[0053] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drilling auxiliary device for high-altitude operations, comprising a lifting support, a drilling mechanism, and a dust collection mechanism, wherein the drilling mechanism and the dust collection mechanism are both mounted on the lifting support, and the lifting support is used to drive the drilling mechanism and the dust collection mechanism to move up and down, characterized in that: The drilling mechanism includes a drill rod (1) and a body (2). The body (2) is fixed on a lifting bracket, and the drill rod (1) is mounted on the body (2). The body (2) is used to drive the drill rod (1) to rotate and drill. The dust collection mechanism includes a dust collection hood (3), a movable mounting assembly, and a flexible water-absorbing ring (4). The dust collection hood (3) is mounted on the lifting bracket via the movable mounting assembly. The drill rod (1) passes through the dust collection hood (3) from bottom to top, and the top surface of the dust collection hood (3) is provided with an opening for collecting dust. The movable mounting assembly is used to elastically mount the dust collection hood (3) on the lifting bracket along the axial direction of the drill rod (1) and to keep the top surface of the dust collection hood (3) and the top surface of the drill rod (1) at the same height. The top surface of the side wall of the dust collection hood (3) is provided with a receiving groove (5) for accommodating the flexible water-absorbing ring (4), and the top surface of the flexible water-absorbing ring (4) is higher than the top surface of the dust collection hood (3).

2. The drilling auxiliary device for high-altitude operations according to claim 1, characterized in that: The inner wall of the receiving groove (5) is fixedly provided with a boss structure (51). The boss structure (51) is used to divide the receiving groove (5) into an upper part and a lower part in the axial direction of the drill rod (1). The upper part of the receiving groove (5) matches the size of the flexible water-absorbing ring (4) and is used to accommodate the flexible water-absorbing ring (4). The lower part of the receiving groove (5) is used to store the marking liquid. The flexible water-absorbing ring (4) extends through the boss structure (51) into the lower part of the receiving groove (5).

3. The drilling auxiliary device for high-altitude operations according to claim 1, characterized in that: The flexible water-absorbing ring (4) has a circular structure and is coaxially arranged with the drill rod (1).

4. The drilling auxiliary device for high-altitude operations according to claim 1, characterized in that: The bottom end of the dust collection hood (3) is provided with a circular hole along the axial direction of the drill rod (1) for the drill rod (1) to pass through. A baffle structure (6) is fixedly provided on the bottom surface of the inner cavity of the dust collection hood (3) around the circular hole. The baffle structure (6) is used to prevent the dust collected in the dust collection hood (3) from entering the circular hole.

5. The drilling auxiliary device for high-altitude operations according to claim 4, characterized in that: The top surface of the baffle structure (6) is inclined downward in the radial outward direction along the drill rod (1) to guide dust away from the round hole.

6. The drilling auxiliary device for high-altitude operations according to claim 1, characterized in that: The lifting bracket includes a support rod (7), a lifting rod (8), a first connecting rod (9), and a second connecting rod (10). The first ends of the first connecting rod (9) and the second connecting rod (10) are hinged to the support rod (7), and the second ends of the first connecting rod (9) and the second connecting rod (10) are hinged to the lifting rod (8). The lifting rod (8) is parallel to the support rod (7), and the first connecting rod (9) is parallel to the second connecting rod (10), so that the support rod (7), the lifting rod (8), the first connecting rod (9), and the second connecting rod (10) together form a parallelogram mechanism. The bottom end of the support rod (7) extends out of the parallelogram mechanism to support the ground. The top end of the lifting rod (8) extends out of the parallelogram mechanism to install the drilling mechanism and the dust collection mechanism. The end of the first connecting rod (9) or the second connecting rod (10) away from the lifting rod (8) extends out of the parallelogram mechanism to control the lifting of the lifting rod (8).

7. The drilling auxiliary device for high-altitude operations according to claim 6, characterized in that: The movable mounting assembly includes a slide rod (11) and a return spring (12). The top end of the lifting rod (8) is provided with a mounting groove (13) along the axial direction of the drill rod (1). The slide rod (11) is slidably disposed in the mounting groove (13) along the axial direction of the drill rod (1). The return spring (12) is pressed between the bottom end of the slide rod (11) and the bottom end of the mounting groove (13). The dust collection cover (3) is fixed to one end of the slide rod (11) that extends out of the mounting groove (13).

8. The drilling auxiliary device for high-altitude operations according to claim 6, characterized in that: The lifting rod (8) extends out of the parallelogram mechanism and is fixed to a base (14). The machine body (2) is placed on the base (14) and tied to the lifting rod (8) by straps (15).

9. The drilling auxiliary device for high-altitude operations according to claim 6, characterized in that: The lifting rod (8) includes a fixed rod (81) and a movable rod (82). The fixed rod (81) is hinged to the first connecting rod (9) and the second connecting rod (10). The movable rod (82) is slidably disposed on the fixed rod (81) along the length direction of the fixed rod (81). The fixed rod (81) and / or the movable rod (82) are provided with a limiting mechanism for limiting and fixing the movable rod (82) relative to the fixed rod (81).

10. A drilling auxiliary device for high-altitude operations according to claim 6, characterized in that: The first link (9) or the second link (10) has a handle (16) at one end of the parallelogram mechanism.

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