Concrete slab efficient drilling device for building construction

Abstract

The invention relates to the technical field of building construction, and provides a concrete slab efficient drilling device for building construction, which comprises a movable base, a supporting mechanism arranged on the base and used for preventing the base from accidentally moving, and a drilling mechanism arranged on the base, the drilling mechanism moves in the height direction of the base through a lifting mechanism arranged on the base, and the two semicircular shells are symmetrically arranged below the drilling mechanism. The two semicircular shells are in butt joint through the adjusting mechanism to be combined into an integral round shell, meanwhile, the lifting mechanism drives the drilling mechanism and the semicircular shells to move downwards, the semicircular shells are tightly attached to the concrete slab so that the concrete slab can cover a drilling area for shielding protection, in the drilling process, the sound absorption plate absorbs noise and reduces reflection of the noise, and in cooperation with the sound insulation plate, noise transmission is blocked, and the drilling efficiency is improved. And noise is isolated in the semicircular shell, so that the effect of isolating and protecting splashed impurities and noise is achieved, and the using effect and safety of the device are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a high-efficiency drilling device for a concrete slab used in building construction. Background Art

[0002] Concrete slab is a slab made of concrete material. It is the basic structure or component in house construction and various engineering structures. It is often used as roof, floor, platform, wall, retaining wall, foundation, floor, pavement, pool, etc., and has a wide range of applications.

[0003] The utility model patent with the known application number: CN202321484884.3 discloses a concrete slab drilling device, and its background technology proposes the problem that "most of the existing hole-opening equipment are drilling machines, which need to be held by workers for drilling. During the drilling process, the strong vibration can easily cause numbness of the arms, and the drill bit is also very easy to get hot, and it is often necessary to take a break. This not only reduces work efficiency, but also affects the body. In the process of drilling, a large amount of dust will be generated. If inhaled for a long time, it will affect the lungs of the workers." Therefore, the technical solution to this problem is "including a substrate, a drilling mechanism is provided at the top of the substrate near the front, a cooling mechanism is provided at the back of the drilling mechanism, the drilling mechanism includes a support frame, an electric telescopic rod is provided inside the support frame, a motor protection box is provided at the bottom of the electric telescopic rod, a rotating motor is provided inside the motor protection box, a drill bit is provided at the output end of the rotating motor, and the cooling mechanism includes a water tank, and a control panel is provided on the top of the water tank. "

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: although it achieves the effects of automatic drilling and dust suppression through the provided technical solution, it is not convenient to isolate and protect the impurities and noise generated by drilling when in use. During the drilling process, the impurities, gravel and noise generated are likely to have a certain impact on the safety and health of the workers. At the same time, it is also not convenient to recycle the water sprayed by the drill bit for cooling. A large amount of sprayed water will remain on the concrete slab, causing serious waste of water resources, thereby reducing the use effect, safety and environmental protection of the drilling device. Summary of the invention

[0005] The present invention provides an efficient drilling device for concrete slabs for construction, which solves the problems in the related art of being inconvenient to isolate and protect impurities and noise generated by drilling, and being inconvenient to recycle water sprayed out by the drill bit for cooling.

[0006] The technical solution of the present invention is as follows: A high-efficiency drilling device for concrete slabs used in building construction, comprising:

[0007] A movable base, the base being provided with a support mechanism for preventing the base from accidentally moving;

[0008] A drilling mechanism is arranged on the base, and the drilling mechanism moves along the height direction of the base through a lifting mechanism arranged on the base;

[0009] Two semicircular shells are symmetrically arranged below the drilling mechanism, the two semicircular shells can move relative to each other through an adjusting mechanism arranged on the lifting mechanism, and the bottom ends and opposite end surfaces of the two semicircular shells are both installed with sealing strips;

[0010] A sound insulation board is fixedly mounted on the inner surfaces of the two semicircular shells, and a sound absorbing board is fixedly mounted on the surface of the sound insulation board;

[0011] Two water storage cylinders are symmetrically installed on the tops of the two semicircular shells, an electric push rod 1 is fixedly installed on the top of the water storage cylinder, the output end of the electric push rod 1 movably penetrates into the water storage cylinder and is fixedly connected to a piston block, and the piston block and the inner wall of the water storage cylinder are fitted and slid;

[0012] A water pumping pipe is fixedly connected to the bottom of the water storage cylinder, a filter screen is detachably installed inside the water pumping pipe, a one-way valve is arranged on the surface of the water pumping pipe, and a plurality of water inlets are opened at the bottom of the water pumping pipe in the form of a circular ring;

[0013] A drainage pipe fixedly connected to the bottom surface of the water storage cylinder, wherein a second one-way valve is provided on the surface of the drainage pipe;

[0014] And a water spraying mechanism is arranged on the base and the water outlet end extends into the semicircular shell. One end of the drainage pipe extends out of the semicircular shell and is connected with the water spraying mechanism.

[0015] Preferably, the inner walls of the top openings of the two semicircular shells are provided with a plurality of balls, and protective mesh plates can be detachably installed inside the two semicircular shells.

[0016] Preferably, the lifting mechanism includes a fixed frame fixedly mounted on one side of the top of the base, a screw rod rotatably connected between the upper and lower sides of the inner wall of the fixed frame, a movable seat threadedly connected to the surface of the screw rod and sliding with the fixed frame, and a motor 1 fixedly mounted on the top of the fixed frame, and the output end of the motor 1 movably passes through the movable seat and is connected to the screw rod.

[0017] Preferably, the drilling mechanism includes a drill bit rotatably connected to the bottom of the movable seat and a second motor fixedly mounted on the top of the movable seat, and the output end of the second motor movably passes through the movable seat and is connected to the drill bit.

[0018] Preferably, the adjustment mechanism includes two electric push rods symmetrically fixedly mounted on the two side surfaces of the movable seat, a connecting block fixedly connected to the output end of the two electric push rods, a mounting block fixedly mounted on the surface of the semicircular shell, a limiting guide rod fixedly connected to the top of the mounting block and sliding with the connecting block, and a spring sleeved on the surface of the limiting guide rod, wherein the two ends of the spring are respectively connected to the mounting block and the connecting block.

[0019] Preferably, the water spray mechanism comprises a nozzle fixedly mounted on the inner surfaces of the two semicircular shells, a water tank fixedly mounted on the other side of the top of the base, a water pump fixedly mounted on the top of the water tank, and a water hose fixedly connected to the output end of the water pump through a pipeline, both ends of the water hose respectively extend to the interior of the two semicircular shells and are connected to the nozzle, and the drain pipe is connected to the water hose.

[0020] Preferably, the supporting mechanism includes a dual-axis motor fixedly mounted on the top of the base, two worm gears fixedly connected to the output ends of the dual-axis motor, two rotating shaft rods symmetrically connected to both sides of the top of the base through a base block, a worm wheel fixedly connected to the surface of one end of the rotating shaft rod and meshing with the worm gear, and a supporting plate fixedly mounted on the surface of the rotating shaft rod, and an anti-slip pad is fixedly mounted on the bottom of the supporting plate.

[0021] The working principle and beneficial effects of the present invention are:

[0022] 1. When the present invention is in use, the adjustment mechanism drives the two semicircular shells to move closer to each other, so that the two semicircular shells are butted and combined into an integral circular shell. At the same time, the lifting mechanism drives the drilling mechanism and the semicircular shells to move downward, so that the semicircular shells are closely fitted to the concrete slab, so as to cover the drilling area for shielding and protection, and to prevent the drilling rotation from causing the splash of gravel. During the drilling process, the sound-absorbing board absorbs the noise to reduce the reflection of the noise, and cooperates with the sound insulation board to block the propagation of the noise, so that the noise is isolated in the semicircular shell, so as to achieve the effect of isolating and protecting the splashing impurities and noise, avoid the influence of noise and impurities on the staff, and effectively improve the use effect and safety of the device.

[0023] 2. When the present invention sprays water for cooling, the semicircular shell cooperates with the sealing strip to block the sprayed water, so that the sprayed water can gather inside the semicircular shell. At the same time, the electric push rod drives the piston block to move upward along the inner wall of the water storage cylinder, so that negative pressure is formed in the water storage cylinder, so that the suction pipe draws part of the gathered water into the water storage cylinder, and filters the impurity particles in the water through the filter sheet. After that, the electric push rod drives the piston block to move downward, so that the water recovered in the water storage cylinder is discharged into the water spraying mechanism through the drainage pipe and sprayed again. By repeating the above steps, the effect of recycling the water sprayed for cooling can be achieved, which effectively reduces the waste of a large amount of water resources and greatly improves environmental protection.

[0024] 3. When the drill bit of the present invention is in the semicircular shell, the ball contacts the drill bit, which facilitates clamping and limiting the drill bit, preventing the drill bit from shifting and shaking in the initial stage of drilling. At the same time, when drilling, the ball can roll with it, reducing the friction between the drill bit and the semicircular shell, avoiding wear of the semicircular shell. By setting a protective mesh plate, it is convenient to shield and protect the sound-absorbing panel and the water storage cylinder, preventing impurities splashed by drilling from damaging the sound-absorbing panel and the water storage cylinder, which is beneficial to increasing the service life of the sound-absorbing panel and the water storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a partial three-dimensional structural schematic diagram of the fixing frame of the present invention;

[0028] Figure 3 It is a partial three-dimensional structural schematic diagram of the movable seat of the present invention;

[0029] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the protective screen plate of the present invention;

[0030] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the semicircular shell of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the water storage cylinder of the present invention;

[0032] Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged three-dimensional structure in the middle;

[0033] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the base of the present invention;

[0034] In the figure: 1. base; 2. semicircular shell; 3. sound insulation board; 4. sound absorbing board; 5. water storage cylinder; 6. electric push rod 1; 7. piston block; 8. water suction pipe; 9. filter screen; 10. drain pipe; 11. ball bearing; 12. protective screen; 13. fixing frame; 14. screw rod; 15. movable seat; 16. motor 1; 17. drill bit; 18. motor 2; 19. electric push rod 2; 20. connecting block; 21. mounting block; 22. limit guide rod; 23. spring; 24. nozzle; 25. water tank; 26. water pump; 27. water supply hose; 28. double-axis motor; 29. ​​worm; 30. shaft rod; 31. worm wheel; 32. support plate. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] See also Figure 1 - Figure 8 , the present invention provides a high-efficiency drilling device for concrete slabs used in building construction, comprising: a movable base 1;

[0038] A drilling mechanism is arranged on the base 1, and the drilling mechanism moves along the height direction of the base 1 through a lifting mechanism arranged on the base 1;

[0039] Two semicircular shells 2 are symmetrically arranged below the drilling mechanism. The two semicircular shells 2 can move relative to each other through an adjusting mechanism arranged on the lifting mechanism. The bottom ends and opposite end surfaces of the two semicircular shells 2 are both installed with sealing strips.

[0040] A sound insulation board 3 is fixedly mounted on the inner surfaces of the two semicircular shells 2, and a sound absorbing board 4 is fixedly mounted on the surface of the sound insulation board 3;

[0041] Two water storage cylinders 5 are symmetrically installed on the tops of the two semicircular shells 2. An electric push rod 6 is fixedly installed on the top of the water storage cylinder 5. The output end of the electric push rod 6 movably penetrates into the water storage cylinder 5 and is fixedly connected to a piston block 7. The piston block 7 and the inner wall of the water storage cylinder 5 fit and slide.

[0042] A water pumping pipe 8 is fixedly connected to the bottom of the water storage cylinder 5, and a filter screen 9 is detachably installed inside the water pumping pipe 8. A one-way valve 1 is provided on the surface of the water pumping pipe 8, and a plurality of water inlets are provided at the bottom of the water pumping pipe 8 in the form of a circular ring, wherein the water pumping pipe 8 and the bottom of the semicircular shell 2 are at the same horizontal plane, and the one-way valve 1 can only allow water to enter the water pumping pipe 8;

[0043] A drain pipe 10 is fixedly connected to the bottom surface of the water storage cylinder 5, and a one-way valve 2 is provided on the surface of the drain pipe 10, wherein the one-way valve 2 can only drain water from the drain pipe 10;

[0044] A water spraying mechanism is arranged on the base 1 and the water outlet end extends into the semicircular shell 2. One end of the drain pipe 10 extends out of the semicircular shell 2 and is connected to the water spraying mechanism.

[0045] The technical solution provided by this embodiment is as follows: when in use, the base 1 is moved to the working position, and then the two semicircular shells 2 are driven to move closer to each other through the adjustment mechanism, so that the two semicircular shells 2 are connected and combined into an integral circular shell, and at the same time, the drilling mechanism and the semicircular shells 2 are driven downward by the lifting mechanism. During the downward movement, the semicircular shells 2 first contact the concrete slab, and as the lifting mechanism moves downward, the semicircular shells 2 are blocked by the concrete slab and remain in a fixed position, and are tightly fitted with the concrete slab. After that, the drilling mechanism passes through the semicircular shells 2 and contacts the concrete slab to drill holes. During the drilling process, the drilling mechanism is sprayed with water. The output end (drill bit 17) is cooled, and dust generated by drilling is suppressed to prevent dust from polluting the environment. At the same time, the semicircular shell 2 covers the drilling area, which can shield and protect the drilling mechanism, thereby preventing the drilling rotation from causing stone fragments to splash. The sound-absorbing board 4 absorbs the noise to reduce the reflection of the noise, and cooperates with the sound insulation board 3 to block the propagation of the noise, so that the noise is isolated in the semicircular shell 2. Therefore, the splashing impurities and noise are isolated and protected, and the noise and impurities are prevented from affecting the staff, which effectively improves the use effect and safety of the device. When the drilling mechanism is cooled, the semicircular shell 2 is cooperated with the sealing strip to block the sprayed water, so that the sprayed water can be gathered inside the semicircular shell 2, and the bottom of the water pumping pipe 8 is in contact with the surface of the concrete slab. At this time, the electric push rod 16 drives the piston block 7 to move upward along the inner wall of the water storage cylinder 5, so that negative pressure is formed in the water storage cylinder 5, so that the water pumping pipe 8 can cooperate with the water inlet hole and the one-way valve 1 to pump part of the gathered water into the water storage cylinder 5, and filter the impurity particles in the water through the filter screen 9. Then, the electric push rod 16 drives the piston block 7 to move downward, so that the piston block 7 squeezes the water recovered in the water storage cylinder 5, so that the recovered water can be input into the water spraying mechanism through the drain pipe 10 and the one-way valve 2 and sprayed again. By repeating the above steps, the effect of recycling the water sprayed out by cooling can be achieved, which effectively reduces the waste of a large amount of water resources and greatly improves environmental protection.

[0046] Furthermore, the lifting mechanism includes a fixed frame 13 fixedly installed on one side of the top of the base 1, a screw rod 14 rotatably connected between the upper and lower sides of the inner wall of the fixed frame 13, a movable seat 15 threadedly connected to the surface of the screw rod 14 and sliding with the fixed frame 13, and a motor 16 fixedly installed on the top of the fixed frame 13, and the output end of the motor 16 movably passes through the movable seat 15 and is connected to the screw rod 14.

[0047] Specifically, when drilling, the motor 16 drives the screw rod 14 to rotate, so that the movable seat 15 moves down along the inner wall of the fixed frame 13, and the drilling mechanism is synchronously driven down by the movable seat 15, so that the drilling mechanism passes through the two semicircular shells 2 and contacts the concrete slab, and then the concrete is drilled by the drilling mechanism, and the drilling depth can be adjusted by coordinating the movement of the movable seat 15 during the drilling process. Conversely, after the drilling is completed, the drill bit 17 can be driven to move up and reset by reversing the motor 16.

[0048] Furthermore, the drilling mechanism includes a drill bit 17 rotatably connected to the bottom of the movable seat 15 and a motor 18 fixedly installed on the top of the movable seat 15 , and the output end of the motor 18 movably passes through the movable seat 15 and is connected to the drill bit 17 .

[0049] Specifically, when drilling, the movable seat 15 is moved downward by the lifting mechanism, thereby driving the drill bit 17 to move downward through the movable seat 15, so that the drill bit 17 passes through the semicircular shell 2 and contacts the concrete slab, and then the drill bit 17 is driven to rotate by the motor 2 18, and the movement of the movable seat 15 is coordinated to complete the drilling work. During the process, there is no need for personnel to hold the drill by hand, which ensures convenience of use.

[0050] Furthermore, the adjustment mechanism includes two electric push rods 19 symmetrically fixedly mounted on the two sides of the movable seat 15, a connecting block 20 fixedly connected to the output end of the electric push rod 19, a mounting block 21 fixedly mounted on the surface of the semicircular shell 2, a limiting guide rod 22 fixedly connected to the top of the mounting block 21 and sliding with the connecting block 20, and a spring 23 sleeved on the surface of the limiting guide rod 22, and the two ends of the spring 23 are respectively connected to the mounting block 21 and the connecting block 20.

[0051] Specifically, when drilling, the electric push rod 19 drives the two semicircular shells 2 to move closer to each other, so that the two semicircular shells 2 are closed to form a whole, so as to limit the drill bit 17. On the contrary, when an abnormality occurs during drilling, the electric push rod 19 drives the semicircular shells 2 to separate, so that it is convenient for personnel to check the situation between the drill bit 17 and the concrete slab. Then, the drill bit 17 and the semicircular shells 2 are driven to move downward synchronously through the lifting mechanism, and the semicircular shells 2 first contact the concrete slab. At the same time, as the lifting mechanism drives the drill bit 17 to move downward to the depth of the drill hole, the connecting block 20 can move downward along the surface of the limiting guide rod 22 and squeeze the spring 23, so that the elastic force of the spring 23 cooperates with the sealing strip to make the semicircular shell 2 and the concrete slab in close contact and fit, so that the semicircular shell 2 covers and shields the drilling area, and at the same time, it can also prevent water accumulation from flowing out, thereby improving the protection effect and sealing of the semicircular shell 2.

[0052] Furthermore, the water spraying mechanism includes a nozzle 24 fixedly installed on the inner surface of the two semicircular shells 2, a water tank 25 fixedly installed on the other side of the top of the base 1, a water pump 26 fixedly installed on the top of the water tank 25, and a water hose 27 fixedly connected to the output end of the water pump 26 through a pipeline, both ends of the water hose 27 respectively extend to the interior of the two semicircular shells 2 and are connected to the nozzle 24, and the drain pipe 10 is connected to the water hose 27, wherein the input end of the water pump 26 extends to the interior of the water tank 25 through a pipeline, and a water injection pipe is installed on the top of the water tank 25, and a cap is threadedly connected to the end of the water injection pipe.

[0053] Specifically, during the drilling process of the drill bit 17, water in the water tank 25 is extracted by the water pump 26 and input into the nozzle 24 in the semicircular shell 2 through the water hose 27, so that the nozzle 24 sprays water on the drill bit 17, thereby achieving the purpose of cooling the drill bit 17. At the same time, the sprayed water can also prevent dust from flying, achieving the effect of dust reduction and dust suppression, so as to avoid dust polluting the environment and affecting the health of workers.

[0054] Embodiment 2

[0055] Based on the first embodiment, in this embodiment: the inner walls of the top openings of the two semicircular shells 2 are both provided with a plurality of balls 11 , and the interiors of the two semicircular shells 2 are both detachably provided with protective mesh plates 12 .

[0056] The technical solution provided by this embodiment is as follows: when drilling, the two semicircular shells 2 are moved close to each other through the adjusting mechanism, so that the two semicircular shells 2 are combined into an integral circular shell, so as to protect the drilling position and the drilling mechanism, and when the lifting mechanism drives the drill bit 17 to pass through the semicircular shell 2, the drill bit 17 can contact with the ball 11, so as to clamp and limit it, and prevent the drill bit 17 from shifting and shaking in the initial stage of drilling. At the same time, when drilling, the ball 11 can roll accordingly, so that under the action of the ball 11, the friction between the drill bit 17 and the semicircular shell 2 can be reduced, and the wear of the semicircular shell 2 can be avoided. By setting the protective mesh plate 12, it is convenient to shield and protect the components installed in the semicircular shell 2, such as the sound absorbing board 4 and the water storage cylinder 5, to prevent the impurities splashed by the drilling from damaging the sound absorbing board 4 and the water storage cylinder 5, and effectively improve the service life of the sound absorbing board 4 and the water storage cylinder 5.

[0057] Embodiment 3

[0058] Based on the first embodiment, in this embodiment: a supporting mechanism is provided on the base 1 to prevent the base 1 from accidentally moving.

[0059] Furthermore, the supporting mechanism includes a dual-axis motor 28 fixedly mounted on the top of the base 1, two worm gears 29 fixedly connected to the output ends of the dual-axis motor 28, two rotating shafts 30 symmetrically connected to both sides of the top of the base 1 through a base block, a worm wheel 31 fixedly connected to the surface of one end of the rotating shaft rod 30 and meshing with the worm gear 29, and a supporting plate 32 fixedly mounted on the surface of the rotating shaft rod 30, and an anti-slip pad is fixedly mounted on the bottom of the supporting plate 32.

[0060] The technical solution provided by this embodiment is: when the base 1 is moved to the working position, the dual-axis motor 28 drives the worm 29 at the output end to rotate, so that the worm 29 drives the worm wheel 31 meshing with it to rotate, thereby driving the rotating shaft rod 30 to rotate, so that the rotating shaft rod 30 drives the support plate 32 to flip a certain angle, so that the support plate 32 is in contact with the ground, and under the self-locking characteristics of the worm 29 and the worm wheel 31 and the anti-slip pad, the stability of the support plate 32 in contact with the ground is guaranteed, thereby preventing the base 1 from moving accidentally, which helps to improve the stability of drilling.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient drilling device for concrete slabs for building construction, characterized in that: include: A movable base (1), wherein the base (1) is provided with a supporting mechanism for preventing the base (1) from accidentally moving; A drilling mechanism is arranged on the base (1), and the drilling mechanism moves along the height direction of the base (1) via a lifting mechanism arranged on the base (1); Two semicircular shells (2) are symmetrically arranged below the drilling mechanism, the two semicircular shells (2) can move relative to each other through an adjustment mechanism arranged on the lifting mechanism, and sealing strips are installed on the bottom ends and opposite end surfaces of the two semicircular shells (2); A sound insulation board (3) fixedly mounted on the inner surfaces of the two semicircular shells (2), wherein a sound absorbing board (4) is fixedly mounted on the surface of the sound insulation board (3); Two water storage cylinders (5) are symmetrically installed on the tops of the two semicircular shells (2), an electric push rod (6) is fixedly installed on the top of the water storage cylinder (5), the output end of the electric push rod (6) is movably inserted into the water storage cylinder (5) and is fixedly connected with a piston block (7), and the piston block (7) and the inner wall of the water storage cylinder (5) are fitted and slidable; A water pumping pipe (8) is fixedly connected to the bottom of the water storage cylinder (5), a filter screen (9) is detachably installed inside the water pumping pipe (8), a one-way valve is provided on the surface of the water pumping pipe (8), and a plurality of water inlets are provided at the bottom end of the water pumping pipe (8) in the form of a circular ring; A drainage pipe (10) fixedly connected to the bottom surface of the water storage cylinder (5), wherein a second one-way valve is provided on the surface of the drainage pipe (10); A water spraying mechanism is provided on the base (1) and the water outlet end of the water spraying mechanism extends into the semicircular shell (2); one end of the drainage pipe (10) extends out of the semicircular shell (2) and is connected to the water spraying mechanism.

2. The high-efficiency drilling device for concrete slabs used in construction according to claim 1, characterized in that: The inner walls of the top openings of the two semicircular shells (2) are both provided with a plurality of balls (11), and protective mesh plates (12) are detachably installed inside the two semicircular shells (2).

3. The high-efficiency drilling device for concrete slabs used in construction according to claim 1, characterized in that: The lifting mechanism comprises a fixed frame (13) fixedly mounted on one side of the top of the base (1), a screw rod (14) rotatably connected between the upper and lower sides of the inner wall of the fixed frame (13), a movable seat (15) threadedly connected to the surface of the screw rod (14) and sliding with the fixed frame (13), and a motor (16) fixedly mounted on the top of the fixed frame (13), wherein the output end of the motor (16) movably passes through the movable seat (15) and is connected to the screw rod (14).

4. The high-efficiency drilling device for concrete slabs used in construction according to claim 3, characterized in that: The drilling mechanism comprises a drill bit (17) rotatably connected to the bottom of the movable seat (15) and a second motor (18) fixedly mounted on the top of the movable seat (15); the output end of the second motor (18) movably passes through the movable seat (15) and is connected to the drill bit (17).

5. The high-efficiency drilling device for concrete slabs used in construction according to claim 3, characterized in that: The regulating mechanism comprises two electric push rods (19) symmetrically fixedly mounted on two side surfaces of a movable seat (15), a connecting block (20) fixedly connected to the output end of the electric push rods (19), a mounting block (21) fixedly mounted on the surface of a semicircular shell (2), a limiting guide rod (22) fixedly connected to the top of the mounting block (21) and sliding with the connecting block (20), and a spring (23) sleeved on the surface of the limiting guide rod (22), wherein the two ends of the spring (23) are respectively connected to the mounting block (21) and the connecting block (20).

6. The high-efficiency drilling device for concrete slabs used in construction according to claim 1, characterized in that: The water spray mechanism comprises a spray head (24) fixedly mounted on the inner surface of the two semicircular shells (2), a water tank (25) fixedly mounted on the other side of the top of the base (1), a water pump (26) fixedly mounted on the top of the water tank (25), and a water hose (27) fixedly connected to the output end of the water pump (26) through a pipeline, the two ends of the water hose (27) respectively extending to the inside of the two semicircular shells (2) and connected to the spray head (24), and the drain pipe (10) is connected to the water hose (27).

7. The high-efficiency drilling device for concrete slabs used in construction according to claim 1, characterized in that: The support mechanism comprises a double-axis motor (28) fixedly mounted on the top of the base (1), two worm gears (29) fixedly connected to the output ends of the double-axis motor (28), two rotating shafts (30) symmetrically connected to the two sides of the top of the base (1) via a base block, a worm wheel (31) fixedly connected to the surface of one end of the rotating shaft rod (30) and meshing with the worm gear (29), and a support plate (32) fixedly mounted on the surface of the rotating shaft rod (30), wherein an anti-slip pad is fixedly mounted on the bottom of the support plate (32).

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