Drilling device for civil engineering construction

Abstract

The invention discloses a drilling device for civil engineering construction, and relates to the technical field of wallboard drilling devices, the drilling device comprises a base and a conveying mechanism, and a machine body is fixedly mounted above the base. According to the drilling device for civil engineering construction, a bearing plate is pushed to one end of a first vertical frame and one end of a second vertical frame through a conveying mechanism, meanwhile, a guide groove and a strip-shaped groove drive the bearing plate to rotate and incline, then a prefabricated wall plate is placed on the bearing plate, and certain physical strength can be saved through the inclined bearing plate; abrasion of the prefabricated wallboard to the drilling table is reduced, then a conveying mechanism and a guide groove drive a bearing plate to return to the horizontal state, meanwhile, dust and stones on the surface of the prefabricated wallboard are swept through an auxiliary mechanism and a sweeping roller, the situation that the accumulated and adhered dust and stones affect the drilling quality is prevented, the drilling table is arranged to be in an inclined shape, and chippings are conveniently discharged; and the practicability and convenience of the drilling device for civil engineering construction are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wall panel drilling devices, and particularly to a drilling device for civil engineering construction. Background Technique

[0002] The drilling device in civil engineering construction is a device used to drill holes in the ground or structures, and is widely used in fields such as infrastructure construction, tunnel construction, and pile foundation construction. In infrastructure construction, precast wall panels are plate-shaped materials for the interior and exterior walls of buildings, usually made of wood, gypsum, cement board or metal materials. Precast wall panels are usually used to decorate and protect the walls of buildings, playing roles such as heat insulation, sound insulation, and waterproofing. During the processing of precast wall panels, a drilling device for civil engineering construction will be used.

[0003] Before the existing drilling device for civil engineering construction drills holes in precast wall panels, it is necessary to transport the precast wall panels to the drilling workbench through conveyor rollers or manually, and the precast wall panels need to be placed horizontally for easy drilling. However, the drilling workbench usually has a certain height. During the operation of transporting the precast wall panels to a certain height and placing them horizontally, it consumes a lot of labor. Moreover, before drilling the precast wall panels, a part of dust and stones will adhere and accumulate on the surface, and it is impossible to make the accumulated dust or stones loose or fall during the transportation process. The wear caused by the dust or stones to the drill rod is relatively large, affecting the drilling quality and work efficiency. For this reason, we have proposed a drilling device for civil engineering construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a drilling device for civil engineering construction to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solutions: A drilling device for civil engineering construction, including a base and a conveying mechanism. Above the base, a machine body is fixedly installed. Above the machine body, there is a drilling table. In the middle of the drilling table, a gantry is fixed. On one side of the gantry, a drilling assembly is slidably connected through an electric slide rail. At one end of the base, a first vertical frame and a second vertical frame connected to the gantry are fixed, and the bottom surfaces of the first vertical frame and the second vertical frame are respectively connected to both sides of the drilling table. The conveying mechanism is installed on the same side as the first vertical frame and the drilling table. Bar-shaped grooves are provided inside the first vertical frame and the gantry, and guide grooves are provided inside the second vertical frame and the gantry. Below the gantry, there is a bearing plate. In a groove at one end of the bearing plate, a second round rod is fixed. A rotating block is fixedly sleeved on the outer side of the second round rod. At one end of the rotating block away from the second round rod, a first round rod is fixed. At one end of the bearing plate away from the second round rod, a moving block is connected through a bearing. The conveying mechanism includes a driven sprocket installed on one side of the first vertical frame through a bearing, and a driving sprocket is installed on the surface of the drilling table close to the first vertical frame through a bearing. A chain belt is meshingly sleeved on the outer sides of the driving sprocket and the driven sprocket. One end of the driving sprocket is connected to a conveying motor through a coupling.

[0006] Preferably, both the first round rod and the second round rod are slidably sleeved with the guide groove, the moving block is slidably sleeved with the bar-shaped groove, a rack is fixed on the top of the moving block, and a first side frame and a second side frame are respectively connected to both sides of the gantry.

[0007] Preferably, a limiting component is installed on the inner walls of the gantry close to the first side frame and the second side frame. A second mounting frame is slidably sleeved in an inner groove at one end of the first side frame.

[0008] Preferably, a sliding rod is fixed in an inner groove at one end of the second side frame, and a first mounting frame is slidably sleeved on the outer side of the sliding rod.

[0009] Preferably, a cleaning roller is installed through a bearing on the adjacent sides of the first mounting frame and the second mounting frame. A connecting frame is fixed at the bottom end of the second mounting frame, and an auxiliary mechanism is connected to the outer side of the connecting frame.

[0010] Preferably, the auxiliary mechanism includes a rotating shaft connected to the connecting frame through a bearing. A second gear is fixedly sleeved at the top end of the rotating shaft. A first gear is meshingly connected to one side of the second gear, and the first gear is connected to one end of the cleaning roller.

[0011] Preferably, a cylindrical disk is fixedly connected to the end of the rotating shaft away from the second gear. The rack is meshingly connected to the cylindrical disk, and tooth blocks are fixedly arranged at equal intervals on one side of the second mounting frame.

[0012] Preferably, one side of the tooth block is meshed and connected with a tooth disc. One side of the tooth disc is fixed with a connecting shaft, and the connecting shaft is connected to the first side frame through a bearing. An adjusting mechanism is arranged at the end of the connecting shaft away from the tooth disc.

[0013] Preferably, the adjusting mechanism includes a telescopic groove opened inside the connecting shaft. A rotating handle is slidably sleeved inside the telescopic groove. A support spring is sleeved at one end of the rotating handle close to the telescopic groove.

[0014] Preferably, a plug rod is fixed inside the rotating handle close to the first side frame. Annularly distributed insertion holes are opened on the outer wall surface of the first side frame close to the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: For the drilling device for civil engineering construction, the conveying mechanism pushes the bearing plate to one end of the first vertical frame and the second vertical frame. At the same time, the guide groove and the strip groove drive the bearing plate to rotate and tilt. Then, the precast wall panel is placed on the bearing plate. The tilted bearing plate can save a certain amount of physical strength and reduce the wear on the drilling table caused by the precast wall panel. Then, the conveying mechanism and the guide groove drive the bearing plate back to the horizontal state. During the conveying process, the dust and stones on the surface of the precast wall panel can be brushed by the auxiliary mechanism and the cleaning roller, preventing the accumulated and adhered dust and stones from affecting the drilling quality. The height of the cleaning roller can be adjusted by the adjusting mechanism to brush precast wall panels with different thicknesses. The drilling table is set to be inclined to facilitate the discharge of debris, improving the practicability and convenience of the drilling device for civil engineering construction.

[0016] 1. For the drilling device for civil engineering construction, start the conveying motor to drive the driving sprocket to rotate. The driving sprocket drives the driven sprocket to rotate through the traction chain belt. When the chain belt rotates, it drives the moving block to slide in the strip groove. The moving block drives the bearing plate to move towards the first vertical frame, and at the same time, the moving block drives the rotating block to move towards the second vertical frame. At the same time, the rotating block drives the first round rod and the second round rod to slide in the guide groove. When the first round rod reaches the corner of the guide groove, the first round rod slides along the corner. The first round rod and the second round rod rotate around the center of the second round rod. The second round rod drives the bearing plate to rotate, and the other end of the bearing plate rotates and tilts on the moving block, making the bearing plate in an inclined state, which is convenient for the staff to place the precast wall panel inside the bearing plate, enabling the staff to maintain a more natural and safe posture when taking and placing the precast wall panel, reducing the risk of physical injury caused by bending over or lifting heavy objects, reducing physical exertion, and improving the processing efficiency of the drilling device;

[0017] 2. For the drilling device used in civil engineering construction, when the transfer mechanism transfers the precast wall panel, the moving block slides in the strip-shaped groove. At the same time, the moving block drives the rack to move. When the rack is engaged with the cylindrical disc, the rack drives the cylindrical disc to rotate. The cylindrical disc then drives the second gear to rotate through the rotating shaft, and the second gear drives the first gear to rotate. Subsequently, the first gear drives the cleaning roller to rotate, and the cleaning roller sweeps the large-particle dust and stones on the surface of the precast wall panel. In coordination with the rotation of the cleaning roller and the movement of the precast wall panel, after the precast wall panel reaches below the drilling assembly, a part of the dust and stones adhering and accumulating on the surface of the precast wall panel are swept and dispersed by the cleaning roller, and another part of the dust and stones are swept off by the cleaning roller, which can reduce the influence of dust and stones on the drilling quality and improve the working quality of the drilling device used in civil engineering construction;

[0018] 3. For the drilling device used in civil engineering construction, by pulling out the turning handle outward, one end of the turning handle slides in the telescopic groove and compresses the support spring, causing the support spring to be compressed. At the same time, the turning handle drives the insertion rod to disengage from the insertion hole, and then the turning handle is rotated, causing the turning handle to drive the connecting shaft to rotate, and the connecting shaft drives the toothed disc to rotate. The toothed disc meshes with the toothed block, causing the toothed disc to drive the second mounting frame and the connecting frame to slide up or down. At the same time, the first mounting frame slides outside the sliding rod, driving the cleaning roller to move up or down. The insertion hole is used to limit the rotation of the turning handle, which can quickly adjust the height of the cleaning roller, facilitate sweeping the surface of precast wall panels with different thicknesses, and improve the convenience of the drilling device used in civil engineering construction. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the drilling table of the present invention;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the first vertical frame of the present invention;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the transfer mechanism of the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the bearing frame of the present invention;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the cleaning roller of the present invention;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the second mounting frame of the present invention;

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention;

[0027] Figure 9Schematic diagram of the three-dimensional cross-section structure of the first side frame of the present invention;

[0028] Figure 10 Schematic diagram of the three-dimensional cross-section structure of the adjusting mechanism of the present invention;

[0029] Figure 11 Schematic diagram of the three-dimensional structure of the rotating handle of the present invention;

[0030] Figure 12 Schematic diagram of the three-dimensional structure of the jack of the present invention.

[0031] In the figure: 1, base; 2, body; 3, first vertical frame; 4, second vertical frame; 5, drilling table; 6, conveying mechanism; 601, driven sprocket; 602, chain belt; 603, driving sprocket; 7, conveying motor; 8, auxiliary mechanism; 801, first gear; 802, second gear; 803, cylindrical disc; 804, rotating shaft; 9, gantry; 10, drilling assembly; 11, first side frame; 12, second side frame; 13, limiting assembly; 14, bearing plate; 15, cleaning roller; 16, guiding groove; 17, strip-shaped groove; 18, moving block; 19, first round rod; 20, first mounting bracket; 21, connecting bracket; 22, rack; 23, second mounting bracket; 24, rotating block; 25, sliding rod; 26, adjusting mechanism; 2601, inserting rod; 2602, supporting spring; 2603, telescopic groove; 2604, rotating handle; 27, connecting shaft; 28, gear disc; 29, gear block; 30, jack; 31, second round rod. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a drilling device for civil engineering construction, including the base 1 and the conveying mechanism 6. The body 2 is fixedly installed above the base 1. A drilling table 5 is provided above the body 2. A gantry 9 is fixed in the middle of the drilling table 5. One side of the gantry 9 is slidably connected with a drilling assembly 10 through an electric slide rail. A limiting assembly 13 is installed on the inner walls of the gantry 9 close to the first side frame 11 and the second side frame 12.

[0034] Please refer to Figures 1 - 5 and Figure 8, one end of the base 1 is fixedly provided with a first upright frame 3 and a second upright frame 4 connected to the gantry 9, and the bottom surfaces of the first upright frame 3 and the second upright frame 4 are respectively connected to both sides of the drilling table 5. The conveying mechanism 6 is installed on the same side of the first upright frame 3 and the drilling table 5. Strip-shaped grooves 17 are formed on the inner sides of the first upright frame 3 and the gantry 9, and guiding grooves 16 are formed on the inner sides of the second upright frame 4 and the gantry 9. A bearing plate 14 is provided below the gantry 9. A second round rod 31 is fixedly installed in a groove at one end of the bearing plate 14. A rotating block 24 is fixedly sleeved on the outer side of the second round rod 31. One end of the rotating block 24 away from the second round rod 31 is fixedly provided with a first round rod 19. The end of the bearing plate 14 away from the second round rod 31 is connected with a moving block 18 through a bearing. The conveying mechanism 6 includes a driven sprocket 601 installed on one side of the first upright frame 3 through a bearing. A driving sprocket 603 is installed on the surface of one side of the drilling table 5 close to the first upright frame 3 through a bearing. A chain belt 602 is meshed and sleeved on the outer sides of the driving sprocket 603 and the driven sprocket 601. One end of the driving sprocket 603 is connected with a conveying motor 7 through a coupling. Both the first round rod 19 and the second round rod 31 are slidably sleeved with the guiding groove 16, and the moving block 18 is slidably sleeved with the strip-shaped groove 17. One end of the guiding groove 16 is provided with a corner with an angle greater than 90 degrees.

[0035] During specific implementation, before drilling, it is necessary to use a conveying roller or manually carry and place the precast wall panel under the drill rod, which is rather labor-consuming. It is possible to directly start the conveying motor 7, so that the conveying motor 7 drives the driving sprocket 603 to rotate. The driving sprocket 603 drives the driven sprocket 601 to rotate through the traction chain belt 602. When the chain belt 602 rotates, it will drive the moving block 18 to slide in the strip-shaped groove 17. The moving block 18 then drives the bearing plate 14 to move towards the first upright frame 3, and the moving block 18 drives the rotating block 24 to move towards the second upright frame 4. At the same time, the rotating block 24 drives the first round rod 19 and the second round rod 31 to slide in the guiding groove 16. When the first round rod 19 reaches the corner of the guiding groove 16, the first round rod 19 slides along the corner. The first round rod 19 and the second round rod 31 rotate around the center of the second round rod 31. The second round rod 31 then drives the bearing plate 14 to rotate, and the other end of the bearing plate 14 rotates and tilts on the moving block 18, making the bearing plate 14 in an inclined state, which is convenient for the staff to place the precast wall panel inside the bearing plate 14, enabling the staff to maintain a more natural and safe posture when taking and placing the precast wall panel, reducing the risk of physical injury caused by bending over or lifting heavy objects, reducing physical exertion, and improving the processing efficiency of the drilling device.

[0036] Please refer to Figures 1 - 4 and Figures 6 - 8, a rack 22 is fixed to the top of the moving block 18. A first side frame 11 and a second side frame 12 are respectively connected to both sides of the gantry 9. A second mounting frame 23 is slidably sleeved in a built-in groove at one end of the first side frame 11. A sliding rod 25 is fixed in a built-in groove at one end of the second side frame 12. A first mounting frame 20 is slidably sleeved on the outer side of the sliding rod 25. A cleaning roller 15 is mounted on the adjacent sides of the first mounting frame 20 and the second mounting frame 23 through bearings. A connecting frame 21 is fixed to the bottom end of the second mounting frame 23. An auxiliary mechanism 8 is connected to the outer side of the connecting frame 21. The auxiliary mechanism 8 includes a rotating shaft 804 connected to the connecting frame 21 through a bearing. A second gear 802 is fixedly sleeved on the top end of the rotating shaft 804. A first gear 801 is meshed and connected to one side of the second gear 802, and the first gear 801 is connected to one end of the cleaning roller 15. A cylindrical disc 803 is fixedly connected to the end of the rotating shaft 804 away from the second gear 802. The rack 22 is meshed with the cylindrical disc 803.

[0037] During specific implementation, due to processing reasons, large particle dust or stones are likely to adhere to the surface of the precast wall panel, and the large particle dust or stones are likely to accumulate together, affecting the subsequent drilling quality. When the conveying mechanism 6 conveys the precast wall panel, the moving block 18 slides in the strip-shaped groove 17, and at the same time, the moving block 18 drives the rack 22 to move. When the rack 22 is meshed with the cylindrical disc 803, the rack 22 drives the cylindrical disc 803 to rotate. The cylindrical disc 803 then drives the second gear 802 to rotate through the rotating shaft 804. The second gear 802 then drives the first gear 801 to rotate. Subsequently, the first gear 801 drives the cleaning roller 15 to rotate. The cleaning roller 15 sweeps the large particle dust and stones on the surface of the precast wall panel. The rotation of the cleaning roller 15 cooperates with the movement of the precast wall panel. After the precast wall panel reaches below the drilling assembly 10, a part of the dust and stones adhering and accumulating on the surface of the precast wall panel are swept and dispersed by the cleaning roller 15, and another part of the dust and stones are swept off by the cleaning roller 15, which can reduce the influence of dust and stones on the drilling quality and improve the working quality of the drilling device for civil engineering construction.

[0038] Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figures 9 - 12, on one side of the second mounting bracket 23, there are evenly spaced teeth 29 fixed. On one side of the teeth 29, there is a gear disc 28 engaged. On one side of the gear disc 28, a connecting shaft 27 is fixed, and the connecting shaft 27 is connected to the first side frame 11 through a bearing. At the end of the connecting shaft 27 away from the gear disc 28, there is an adjusting mechanism 26. The adjusting mechanism 26 includes a telescopic groove 2603 opened inside the connecting shaft 27. Inside the telescopic groove 2603, a turning handle 2604 is slidably sleeved. At the end of the turning handle 2604 close to the telescopic groove 2603, a support spring 2602 is sleeved. At the end of the turning handle 2604 close to the inside of the first side frame 11, a plug rod 2601 is fixed. On the outer wall surface of the first side frame 11 close to the connecting shaft 27, there are annularly distributed insertion holes 30. The plug rods 2601 are symmetrically distributed on both sides of the turning handle 2604.

[0039] During specific implementation, since the thickness of the precast wall panel may be different, it is necessary to adjust the height of the cleaning roller 15. By pulling the turning handle 2604 outwards, one end of the turning handle 2604 slides in the telescopic groove 2603 and compresses the support spring 2602, causing the support spring 2602 to be compressed. At the same time, the turning handle 2604 drives the plug rod 2601 to disengage from the insertion hole 30. Then, the turning handle 2604 is rotated, causing the turning handle 2604 to drive the connecting shaft 27 to rotate. The connecting shaft 27 then drives the gear disc 28 to rotate. The gear disc 28 meshes with the teeth 29, causing the gear disc 28 to drive the second mounting bracket 23 and the connecting bracket 21 to slide up or down. At the same time, the first mounting bracket 20 slides outside the sliding rod 25, driving the cleaning roller 15 to move up or down. The insertion hole 30 is used to limit the rotation of the turning handle 2604, and the height of the cleaning roller 15 can be quickly adjusted, facilitating the brushing of the surfaces of precast wall panels with different thicknesses and improving the convenience of the drilling device for civil engineering construction.

[0040] In summary, when using the drilling device for civil engineering construction, the conveying mechanism 6 pushes the bearing plate 14 to one end of the first vertical frame 3 and the second vertical frame 4. At the same time, the guide groove 16 and the strip groove 17 drive the bearing plate 14 to rotate and tilt. Subsequently, the precast wall panel is placed on the bearing plate 14. The tilted bearing plate 14 can save a certain amount of physical strength. Then, the conveying mechanism 6 and the guide groove 16 drive the bearing plate 14 back to the horizontal state. At the same time, the auxiliary mechanism 8 and the cleaning roller 15 brush the dust and stones on the surface of the precast wall panel to prevent the accumulated and adhered dust and stones from affecting the drilling quality. The height of the cleaning roller 15 can be adjusted by the adjusting mechanism 26 to brush precast wall panels of different thicknesses. The limiting component 13 limits the two ends of the precast wall panel, and the drilling component 10 drills the precast wall panel. The setting of the bearing plate 14 can reduce the wear of the drilling table 5. The drilling table 5 is inclined to facilitate the discharge of debris, improving the practicability and convenience of the drilling device for civil engineering construction. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling device for civil engineering construction, comprising a base (1) and a transmission mechanism (6), wherein a body (2) is fixedly mounted above the base (1), a drilling platform (5) is arranged above the body (2), a gantry (9) is fixed in the middle of the drilling platform (5), and a drilling assembly (10) is slidably connected to one side of the gantry (9) via an electric slide rail, characterized in that: A first stand (3) and a second stand (4) connected to a gantry (9) are fixed at one end of the base (1), and the bottom surfaces of the first stand (3) and the second stand (4) are respectively connected to two sides of a drilling platform (5), the conveying mechanism (6) is installed on the same side of the first stand (3) and the drilling platform (5), the inner sides of the first stand (3) and the gantry (9) are provided with a strip groove (17), the inner sides of the second stand (4) and the gantry (9) are provided with a guide groove (16), a bearing plate (14) is provided below the gantry (9), a second round rod (31) is fixed in a groove at one end of the bearing plate (14), and the outer side of the second round rod (31) is fixed A rotating block (24) is sleeved, and the end of the rotating block (24) away from the second round rod (31) is fixed with the first round rod (19), and the end of the carrying plate (14) away from the second round rod (31) is connected to the moving block (18) through a bearing, and the transmission mechanism (6) includes a driven sprocket (601) installed on one side of the first stand (3) through a bearing, and a driving sprocket (603) is installed on the surface of the side of the drilling table (5) close to the first stand (3) through a bearing, and the outer sides of the driving sprocket (603) and the driven sprocket (601) are meshed and sleeved with a chain belt (602), and one end of the driving sprocket (603) is connected to a transmission motor (7) through a coupling.

2. A drilling device for civil engineering construction according to claim 1, characterized in that: The first round rod (19) and the second round rod (31) are both slidably connected to the guide groove (16), the moving block (18) is slidably connected to the strip groove (17), a rack (22) is fixed on the top of the moving block (18), and the two sides of the gantry (9) are respectively connected to the first side frame (11) and the second side frame (12).

3. A drilling device for civil engineering construction according to claim 2, characterized in that: A limiting assembly (13) is installed on the inner wall of the gantry (9) close to the first side frame (11) and the second side frame (12), and a second mounting frame (23) is slidably sleeved in a built-in groove at one end of the first side frame (11).

4. A drilling device for civil engineering construction according to claim 2, characterized in that: A slide bar (25) is fixed in a built-in groove at one end of the second side frame (12), and a first mounting frame (20) is slidably sleeved on the outer side of the slide bar (25).

5. A drilling device for civil engineering construction according to claim 4, characterized in that: A cleaning roller (15) is mounted on one side adjacent to the No. 1 mounting frame (20) and the No. 2 mounting frame (23) via a bearing, a connecting frame (21) is fixed to the bottom end of the No. 2 mounting frame (23), and an auxiliary mechanism (8) is connected to the outer side of the connecting frame (21).

6. A drilling device for civil engineering construction according to claim 5, characterized in that: The auxiliary mechanism (8) comprises a rotating shaft (804) connected to the connecting frame (21) via a bearing, a second gear (802) being fixedly sleeved on the top end of the rotating shaft (804), one side of the second gear (802) being meshedly connected to a first gear (801), and the first gear (801) is connected to one end of a cleaning roller (15).

7. A drilling device for civil engineering construction according to claim 6, characterized in that: One end of the rotating shaft (804) away from the second gear (802) is fixedly connected to a cylindrical disk (803), the rack (22) and the cylindrical disk (803) are meshed and connected, and one side of the second mounting frame (23) is fixed with tooth blocks (29) distributed at equal intervals.

8. A drilling device for civil engineering construction according to claim 7, characterized in that: One side of the tooth block (29) is meshedly connected with a toothed disc (28), one side of the toothed disc (28) is fixed with a connecting shaft (27), and the connecting shaft (27) is connected to the first side frame (11) via a bearing, and an adjustment mechanism (26) is provided at one end of the connecting shaft (27) away from the toothed disc (28).

9. A drilling device for civil engineering construction according to claim 8, characterized in that: The adjustment mechanism (26) comprises a telescopic slot (2603) provided on the inner side of the connecting shaft (27); a rotating handle (2604) is slidably sleeved on the inner side of the telescopic slot (2603); and a supporting spring (2602) is sleeved on one end of the rotating handle (2604) close to the telescopic slot (2603).

10. A drilling device for civil engineering construction according to claim 9, characterized in that: An insertion rod (2601) is fixed to the inner side of the rotating handle (2604) close to the first side frame (11), and an annularly distributed insertion holes (30) are provided on the outer wall surface of the first side frame (11) close to the connecting shaft (27).

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