Labor-saving and anti-deviation auxiliary pneumatic drilling machine punching device

Abstract

The utility model relates to the technical field of drilling construction auxiliary devices, in particular to a labor-saving and anti-deviation auxiliary pneumatic drilling machine punching device. Comprising a sliding assembly which is installed above a workbench and enables a pneumatic drilling machine to be horizontally erected on the upper surface of the workbench; the feeding assembly is located between the sliding assembly and the workbench, connected with the pneumatic drilling machine and used for driving the pneumatic drilling machine to slide along the sliding assembly and adjusting the feeding depth of the pneumatic drilling machine; and the adjusting assembly is located below the workbench, supports the workbench away from the ground and is used for adjusting the height and the inclination angle of the workbench. The original pressure that a worker needs to pick up and stabilize the pneumatic drilling machine is transferred to the sliding assembly and the workbench; the pneumatic drilling machine is simple in structure and convenient to use, the drilling sampling task of the pneumatic drilling machine can be completed by manpower under the extremely easy condition, and meanwhile, the sliding assembly effectively avoids the condition of hole channel deviation by restraining the advancing direction of the pneumatic drilling machine.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling construction auxiliary devices, specifically to an auxiliary pneumatic drilling device that saves effort and prevents deviation. Background Technology

[0002] In coal and gas disaster prevention and control, pneumatic drilling rigs are commonly used for drill cuttings sampling, drilling for construction discharge, and drilling blasting holes. The drill cuttings index method (drill cuttings gas desorption index, drill cuttings volume) is used for predicting the outburst risk at the working face. Drill cuttings are mainly obtained through drilling with pneumatic drilling rigs, and accurately obtaining coal samples at predetermined locations is crucial to ensuring the reliability of outburst risk prediction results. However, the use of pneumatic drilling rigs often requires manual operation by workers. As the drilling depth increases, manual operation with pneumatic drilling rigs is prone to deviation and requires extremely high effort, leading to inaccurate sampling locations and distorted outburst risk prediction results.

[0003] Drainage boreholes are a localized gas outburst prevention measure at the working face. Construction according to the drainage borehole parameters (inclination, azimuth, and length) designed in the engineering plan is crucial for localized gas outburst prevention. Explosive blasting holes are often used to place explosives for blasting in rock and coal tunnels; therefore, the construction parameters (inclination, azimuth, and length) of these holes are also very important for blasting effectiveness and safety. However, during drainage drilling using pneumatic drilling rigs, the manual operation by workers presents problems such as easy deviation and extremely laborious drilling, which can easily cause the drilled borehole to deviate from the pre-designed borehole, resulting in poor gas drainage, ineffective blasting, and potential blasting safety hazards.

[0004] The patent "A Vertical Upward Drilling Device and Drilling Method (Application No.: 2023112105802)" discloses that the drilling rig is slidably installed on the guide rod via a sliding plate, and then the drilling rig is pushed along the linear guide rail on the guide rod by a lifting device to open the hole. However, due to the vertical limiting effect of the guide rod, this drilling process can only achieve vertical drilling and cannot achieve drilling at any angle or height. The patent "Pneumatic Anti-outburst Drilling Rig Angle Adjustment Frame (Application No.: 2016212504653)" discloses that the drilling rig is installed on the crossbeam via a drilling rig frame, and the drilling angle is adjusted by changing the fixed point position of the end of the crossbeam and the support frame by using pipe clamps and screws. However, it can only adjust the vertical angle and cannot adjust the horizontal angle. That is, the angle adjustment range is limited and it cannot adjust the drilling inclination angle and azimuth angle at the same time. It has poor adaptability to the uneven environment of underground roadways.

[0005] Based on this, an auxiliary pneumatic drilling device for labor-saving and anti-deviation purposes was designed. While meeting the needs for adjusting the drilling inclination and azimuth angles, it can save labor and avoid drilling deviation, which is of great significance for ensuring the safe production of coal mines. Utility Model Content

[0006] The problem with existing technology is that when using a handheld pneumatic drill to collect coal samples, the large weight of the drill and the difficulty in maintaining stability during drilling can easily cause workers to bear a heavy load, resulting in fatigue, borehole deviation, and affecting the accuracy of the sampling location. This can lead to inaccurate final hazard prediction results and pose a hidden danger to the safe production of the mining area.

[0007] To address the aforementioned problems, this utility model provides a labor-saving and anti-deviation auxiliary pneumatic drilling device, comprising a pneumatic drilling machine, and further comprising:

[0008] A sliding assembly is installed above the worktable and horizontally supports the pneumatic drill on the surface of the worktable.

[0009] A feed assembly, located between and connected to the sliding assembly and the worktable, is used to drive the pneumatic drill to slide linearly along the sliding assembly and adjust the feed depth of the pneumatic drill.

[0010] An adjustment component, located below the worktable and lifting the worktable off the ground, is used to adjust the tilt angle and height of the worktable.

[0011] In one embodiment, the sliding component includes:

[0012] Two concave slide rails are installed parallel to each other on both sides of the worktable;

[0013] A trolley is slidably installed inside the concave slide rail. The upper end of the trolley penetrates the top wall of the concave slide rail and is fixedly installed with a fixing sleeve. The fixing sleeve has an axially formed groove, and the bottom end of the fixing sleeve extends outward with a tray.

[0014] In one implementation, the feed assembly includes:

[0015] The gearbox is fixedly connected to the worktable;

[0016] A baffle plate, the two ends of which are respectively inserted into the two concave slide rails and fixedly connected to the trolley; the surface of the baffle plate is provided with threaded through holes;

[0017] A threaded rod, one end of which is fixedly mounted with a driven gear and inserted into a gearbox for rotatable connection with the gearbox; the other end of the threaded rod is threadedly engaged with the threaded through hole.

[0018] A plurality of driving gears are located inside the gearbox and mesh with the driven gears; the plurality of driving gears are all fixedly connected to a turntable with a handle outside the gearbox via a drive shaft rotatably mounted on the gearbox.

[0019] As one implementation, the adjustment component includes:

[0020] Several telescopic outriggers, wherein the telescopic outriggers are composed of multiple sections of sleeves with different diameters connected by threads;

[0021] A connector is provided to attach the end of the telescopic leg to the lower surface of the worktable, for adjusting the deflection angle of the telescopic leg relative to the worktable and maintaining the deflection state of the telescopic leg.

[0022] In one embodiment, the connector includes: a damping structure;

[0023] The damping structure includes a double T-shaped protective plate, a rotating block, a first connecting shaft, a damping rod, and a second connecting shaft.

[0024] The double T-shaped protective plate is fixed to the bottom surface of the workbench with screws; both ends of the first connecting shaft are damped by through holes at the ends of the double T-shaped protective plate.

[0025] The rotating block is fixedly installed on the outer surface of the first connecting shaft, and a second connecting shaft extends symmetrically outward from the end of the rotating block away from the first connecting shaft.

[0026] The upper end of the damping rod is provided with a connecting hole corresponding to the second connecting shaft, and the connecting hole is dampedly connected to the second connecting shaft;

[0027] The lower end of the damping rod is fixedly connected to the upper end of the telescopic outrigger.

[0028] In one embodiment, the connector includes: a bolt structure;

[0029] The bolt structure includes a fixing lug and a bolt;

[0030] The fixing ear is vertically fixed to the lower surface of the workbench, and a threaded hole is provided at the end of the fixing ear away from the workbench.

[0031] The upper end of the telescopic outrigger is provided with a light hole corresponding to the threaded hole;

[0032] The bolts pass through the light hole and the threaded hole in sequence to connect the telescopic outrigger to the fixed lug.

[0033] In one embodiment, the connector includes a bolt structure and a damping structure.

[0034] The beneficial effects of this utility model are as follows:

[0035] This invention, based on the existing structure of a pneumatic drill, incorporates an auxiliary drilling device. The pneumatic drill is mounted on a workbench, and the height and tilt angle of the workbench are pre-adjusted according to the pre-designed drilling angle. This, in turn, synchronously adjusts the height and angle of the drill bit. Using this height and angle, the drill rod is fed through a threaded transmission. This eliminates the drawbacks of manual pneumatic drilling, which is laborious and tiring. The operator only needs to crank the handle to feed the drill. This allows for easy and labor-saving drilling of sampling holes while ensuring drilling accuracy and precision—a double benefit. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the sliding component structure of this utility model;

[0038] Figure 3 This is a schematic diagram of the structure of the pneumatic drilling rig of this utility model;

[0039] Figure 4 This is a schematic diagram of the meshing state of the driving and driven gears of this utility model;

[0040] Figure 5 This is a schematic diagram of the damping structure of this utility model;

[0041] In the diagram: 1. Pneumatic drill; 2. Workbench; 3. Concave slide rail; 4. Trolley; 5. Fixed sleeve; 6. Slot; 7. Tray; 8. Gearbox; 9. Baffle; 10. Threaded rod; 11. Drive gear; 12. Driven gear; 13. Drive shaft; 14. Handle; 15. Sleeve; 16. Double T-shaped protective plate; 17. Rotating block; 18. First connecting shaft; 19. Damping rod; 20. Second connecting shaft; 21. Grip. Detailed Implementation

[0042] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0043] Example 1:

[0044] like Figure 1 As shown, this utility model provides a labor-saving and anti-deviation auxiliary pneumatic drill 1 drilling device, including a pneumatic drill 1, and further comprising:

[0045] A sliding assembly is installed above the workbench 2 and the pneumatic drill 1 is horizontally mounted on the upper surface of the workbench 2.

[0046] A feed assembly is located between and connected to the sliding assembly and the worktable 2, and is used to drive the pneumatic drill 1 to slide linearly along the sliding assembly to adjust the feed depth of the pneumatic drill 1.

[0047] An adjustment component is located below the workbench 2 and lifts the workbench 2 off the ground, used to adjust the tilt angle and height of the workbench 2.

[0048] The pneumatic drill 1 is horizontally mounted on the upper surface of the workbench 2 by the sliding component, so that when the adjustment component adjusts the height and tilt angle of the workbench 2, it can simultaneously feed back to the pneumatic drill 1, so that the pneumatic drill 1 makes the same height and angle adjustment. In this way, the drilling height and angle of the drill bit of the pneumatic drill 1 can be flexibly adjusted according to actual needs to meet the needs of drilling at different heights and angles.

[0049] After the height and angle are adjusted and fixed, the feed assembly is started. Since the pneumatic drill 1 is fixed on the worktable 2 by the sliding assembly, when the feed assembly connected to the sliding assembly is started, the feed assembly pushes the sliding assembly to slide linearly, so as to realize the linear feed of the pneumatic drill 1. The drilling depth of the pneumatic drill 1 can be controlled by controlling the feed amount of the feed assembly, and the linear feed direction of the pneumatic assembly 1 is constrained by the sliding assembly to avoid the hole from being skewed.

[0050] This reveals that the weight of the pneumatic drill rig 1 is ultimately supported by the worktable 2 and the adjustment components. The drilling feed of the pneumatic drill rig 1 is powered by the feed components. In other words, during the entire drilling process, the operator only needs to control the start and stop of the feed components and make initial adjustments to the height and angle. Compared to existing methods that rely entirely on manual drilling, this is clearly more labor-saving and makes it easier to ensure drilling accuracy.

[0051] The specific structure of the pneumatic drilling rig 1 is as follows: Figure 3 As shown, the principle and structure of using compressed air as a power source to achieve drilling are existing technologies and will not be elaborated here.

[0052] like Figure 2 As shown, optionally, the sliding component includes:

[0053] Two concave slide rails 3 are installed in parallel on both sides of the worktable 2;

[0054] The trolley 4 is slidably installed inside the concave slide rail 3. The upper end of the trolley 4 penetrates the top wall of the concave slide rail 3 and is fixedly installed with a fixing sleeve 5. The fixing sleeve 5 has an axially formed groove 6, and the bottom end of the fixing sleeve 5 extends outward with a tray 7.

[0055] Two concave slide rails 3 are installed parallel to each other on both sides of the worktable 2 to assist in the horizontal movement of the pneumatic drill 1 on the surface of the worktable 2. The presence of these concave slide rails 3 can effectively ensure the stability of the feed of the pneumatic drill 1 and prevent the hole from being skewed. A trolley 4 is also installed inside the concave slide rail 3. The upper end of the trolley 4 passes through the top of the concave slide rail 3 and is fixedly installed with a fixing sleeve 5. Figure 3 As shown, most existing pneumatic drills 1 are equipped with handles 21 on both sides for easy manual handling and force application. At this time, the handle 21 is vertically inserted into the fixed sleeve 5 from the top of the fixed sleeve 5 until the bottom of the pneumatic drill 1 contacts the tray 7, thus completing the fixed installation of the pneumatic drill 1 on the sliding component.

[0056] The slot 6 on the fixed sleeve 5 allows the handle 21 on the pneumatic drill 1 to slide smoothly down, and also provides a horizontal limit for the pneumatic drill 1, preventing horizontal angular deflection during drilling. The tray 7 provides surface support for the pneumatic drill 1, better ensuring its stability after installation. Figure 4 As shown, optionally, the feed component includes:

[0057] Gearbox 8, which is fixedly connected to workbench 2;

[0058] The baffle 9 has two ends inserted into the two concave slide rails 3 and fixedly connected to the trolley 4; the surface of the baffle 9 is provided with threaded through holes.

[0059] A threaded rod 10, one end of which is fixedly mounted with a driven gear 12 and inserted into a gearbox 8 for rotatable connection with the gearbox 8; the other end of the threaded rod 10 is threadedly engaged with the threaded through hole.

[0060] A plurality of driving gears 11 are located inside the gearbox 8 and mesh with the driven gear 12; the plurality of driving gears 11 are all fixedly connected to a turntable with a handle 14 outside the gearbox 8 via a drive shaft 13 rotatably mounted on the gearbox 8.

[0061] The pneumatic drill 1, which is fixedly mounted on the sliding assembly, can slide freely along the sliding assembly. At this time, a baffle 9 is fixedly installed between the two trolleys 4, connecting the two trolleys 4 into a whole. Through the meshing of the threaded rod 10 with the threaded through hole on the baffle 9, the baffle 9 and the pneumatic drill 1 are driven to move horizontally back and forth.

[0062] Rotating the handle 14 drives the turntable to rotate. Since the turntable is coaxially connected to the drive shaft 13, its torque is transmitted to the driving gear 11 via the drive shaft 13. The driving gear 11, through meshing with the driven gear 12, drives the threaded rod 10 to rotate. Because the concave slide rail 3 circumferentially limits the trolley 4 and the trolley 4 is fixedly connected to the baffle 9, the threaded rod 10 cannot drive the baffle 9 to rotate during rotation; instead, it only drives the baffle 9 to reciprocate along the length of the concave slide rail 3. The reciprocating movement of the baffle 9 drives the pneumatic drill 1 fixed on the trolley 4 to reciprocate within the hole until the hole reaches the specified depth.

[0063] Optionally, there can be multiple drive gears 11. Figure 1 and Figure 4 Taking two drive gears 11 as an example, the arrangement of multiple drive gears 11 not only avoids interference with each other, but also provides workers with diverse options for their position and operating direction. This allows workers to directly operate the handle 14 near them without changing their position or posture in narrow drilling spaces, making this utility model more convenient to use.

[0064] Optionally, the adjustment component includes:

[0065] Several telescopic outriggers, wherein the telescopic outriggers are composed of multiple sections of sleeves 15 of different diameters connected by threads;

[0066] The connector attaches the end of the telescopic leg to the lower surface of the worktable 2, and is used to adjust the deflection angle of the telescopic leg relative to the worktable 2 and maintain the deflection state of the telescopic leg.

[0067] The height of the worktable 2 can be adjusted by changing the depth of the thread between two adjacent sleeves 15. For example, when a higher height of the worktable 2 is required, the smaller diameter sleeve 15 can be screwed out of the larger diameter sleeve 15 as much as possible, thus increasing the height of the worktable 2; when a lower height of the worktable 2 is required, the smaller diameter sleeve 15 can be screwed into the larger diameter sleeve 15 as much as possible, thus decreasing the height of the worktable 2.

[0068] Therefore, the telescopic outriggers can flexibly adjust the height and angle of the workbench 2 by changing their length and the angle of support with the ground, in conjunction with the connecting parts, so that the pneumatic drill 1 mounted on the workbench 2 can meet the drilling needs of different angles and heights.

[0069] like Figure 5 As shown, the connector includes: a damping structure;

[0070] The damping structure includes a double T-shaped protective plate 16, a rotating block 17, a first connecting shaft 18, a damping rod 19, and a second connecting shaft 20.

[0071] The double T-shaped protective plate 16 is fixed to the bottom surface of the workbench 2 by screws; the two ends of the first connecting shaft 18 are connected to the through holes at the ends of the double T-shaped protective plate 16 for damping.

[0072] The rotating block 17 is fixedly installed on the outer surface of the first connecting shaft 18, and a second connecting shaft 20 extends symmetrically outward from the end of the rotating block 17 away from the first connecting shaft 18.

[0073] The upper end of the damping rod 19 is provided with a connecting hole corresponding to the second connecting shaft 20, and the connecting hole is dampedly connected to the second connecting shaft 20.

[0074] The lower end of the damping rod 19 is fixedly connected to the upper end of the telescopic outrigger.

[0075] When the angle of the worktable 2 needs to be adjusted, the damping rod 19 can be directly turned so that it can deflect relative to the second connecting shaft 20, or the rotating block 17 can be deflected relative to the double T-shaped protective plate 16. In other words, the above-mentioned damping structure, through its ingenious structural design, allows the damping rod 19 to deflect freely in four directions, making angle adjustment more flexible.

[0076] Since the first connecting shaft 18 and the double T-shaped protective plate 16, and the damping rod 19 and the second connecting shaft 20 are all damped connections, this damping connection can be achieved by adding a friction damping layer (such as an epoxy resin layer) between the connecting contact surfaces, or by limiting the materials (such as copper alloy) used to make the first connecting shaft 18, the double T-shaped protective plate 16, the damping rod 19 and the second connecting shaft 20, or by any other known damping forming method, ensuring sufficient friction at the contact surfaces, so that the first connecting shaft 18 or the damping rod 19 can still maintain its original angle after being bent, thus ensuring the stability of the structure.

[0077] Example 2:

[0078] The difference between Example 2 and Example 1 lies in the different connecting parts; Example 2 uses a bolt structure.

[0079] The connector includes: a bolt structure;

[0080] The bolt structure includes a fixing lug and a bolt;

[0081] The fixing ear is vertically fixed to the lower surface of the workbench 2, and a threaded hole is provided at the end of the fixing ear away from the workbench 2;

[0082] The upper end of the telescopic outrigger is provided with a light hole corresponding to the threaded hole;

[0083] The bolts pass through the light hole and the threaded hole in sequence to connect the telescopic outrigger to the fixed lug.

[0084] When the angle of workbench 2 needs to be adjusted, the worker needs to turn the bolt to release the telescopic outrigger before adjusting the angle. After the adjustment is completed, the bolt is turned in the opposite direction to fix the telescopic outrigger to the fixing ear, thereby realizing the adjustment of the telescopic outrigger angle.

[0085] Although Example 2 is not as convenient and easy to adjust as Example 1, it achieves fixation of the telescopic outrigger angle after adjustment by tightening the bolts, which is more stable than the damping fixation of Example 1.

[0086] Example 3:

[0087] Example 3 draws on the advantages of both Example 1 and Example 2, namely, it no longer uses a single type of connector but a combination of two connectors.

[0088] The connector includes a bolt structure and a damping structure.

[0089] To balance the ease of adjusting the angle and height of worktable 2 with stability, the telescopic legs of worktable 2 closest to the drilling plane can be bolted to the lower surface of worktable 2, as this is where vibration is most frequent and load is greatest; the telescopic legs of worktable 2 furthest from the drilling plane can be connected to the lower surface of worktable 2 using a damping structure. This achieves a balance between convenience and stability.

[0090] In summary, this utility model, through ingenious structural design, allows the pneumatic drill 1 to be directly inserted into the sliding assembly without altering its existing structure. By adjusting the drilling posture of the assembly adjuster and then using the feed assembly to drive the pneumatic drill 1 to reciprocate, the pressure that previously required the worker to lift and hold the pneumatic drill 1 is transferred to the sliding assembly and the worktable 2. The pressure that previously required the worker to press against the pneumatic drill 1 is transferred to the feed assembly, completely freeing up manpower. This allows workers to complete the drilling and sampling task of the pneumatic drill 1 with great ease. At the same time, the sliding assembly can also prevent hole deviation by constraining the direction of travel of the pneumatic drill 1, ensuring the efficiency and accuracy of hole drilling.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A labor-saving and anti-deviation auxiliary pneumatic drilling device, comprising a pneumatic drill (1), characterized in that, Also includes: A sliding assembly is installed above the workbench (2) and the pneumatic drill (1) is horizontally mounted on the upper surface of the workbench (2); The feed assembly is located between the sliding assembly and the worktable (2) and is connected to the sliding assembly. It is used to drive the pneumatic drill (1) to slide in a straight line along the sliding assembly and adjust the feed depth of the pneumatic drill (1). An adjustment component is located below the workbench (2) and lifts the workbench (2) off the ground, for adjusting the tilt angle and height of the workbench (2).

2. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to claim 1, characterized in that: The sliding component includes: Two concave slide rails (3) are installed parallel to each other on both sides of the worktable (2); A trolley (4) is slidably installed inside the concave slide rail (3). The upper end of the trolley (4) penetrates the top wall of the concave slide rail (3) and is fixedly installed with a fixing sleeve (5). The fixing sleeve (5) has an axial groove (6) and a tray (7) extends outward from the bottom end of the fixing sleeve (5).

3. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to claim 2, characterized in that: The feed assembly includes: Gearbox (8), which is fixedly connected to the worktable (2); A baffle (9) is provided, with its two ends inserted into the two concave slide rails (3) and fixedly connected to the trolley (4); the surface of the baffle (9) is provided with threaded through holes. A threaded rod (10) has a driven gear (12) fixedly installed at one end and inserted into the gearbox (8) and rotatably connected to the gearbox (8). The other end of the threaded rod (10) is threadedly engaged with the threaded through hole. A plurality of driving gears (11) are located inside the gearbox (8) and mesh with the driven gear (12); the plurality of driving gears (11) are all fixedly connected to a turntable with a handle (14) outside the gearbox (8) by a drive shaft (13) rotatably mounted on the gearbox (8).

4. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to claim 1, characterized in that: The adjustment component includes: Several telescopic outriggers, wherein the telescopic outriggers are composed of multiple sections of sleeves (15) of different diameters connected by threads; The connector is used to attach the end of the telescopic leg to the lower surface of the workbench (2) to adjust the deflection angle of the telescopic leg relative to the workbench (2) and maintain the deflection state of the telescopic leg.

5. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to claim 4, characterized in that: The connector includes: a damping structure; The damping structure includes a double T-shaped protective plate (16), a rotating block (17), a first connecting shaft (18), a damping rod (19), and a second connecting shaft (20); The double T-shaped protective plate (16) is fixed to the bottom surface of the workbench (2) by screws; the two ends of the first connecting shaft (18) are connected to the through holes at the ends of the double T-shaped protective plate (16) for damping. The rotating block (17) is fixedly installed on the outer surface of the first connecting shaft (18), and a second connecting shaft (20) extends symmetrically outward from the end of the rotating block (17) away from the first connecting shaft (18); The upper end of the damping rod (19) is provided with a connecting hole corresponding to the second connecting shaft (20), and the connecting hole is dampedly connected to the second connecting shaft (20); The lower end of the damping rod (19) is fixedly connected to the upper end of the telescopic outrigger.

6. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to claim 4, characterized in that: The connector includes: a bolt structure; The bolt structure includes a fixing lug and a bolt; The fixing ear is vertically fixed to the lower surface of the workbench (2), and a threaded hole is provided at the end of the fixing ear away from the workbench (2); The upper end of the telescopic outrigger is provided with a light hole corresponding to the threaded hole; The bolts pass through the light hole and the threaded hole in sequence to connect the telescopic outrigger to the fixed lug.

7. The labor-saving and anti-deviation auxiliary pneumatic drilling device according to any one of claims 5 or 6, characterized in that: The connector includes a bolt structure and a damping structure.

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