Drilling device for civil construction of hydropower station

Abstract

The invention relates to the technical field of construction equipment, in particular to a hydropower station civil construction drilling device which comprises a gasoline hand drill main machine, a power cut-off unit, a chuck and a drill bit, and the power cut-off unit is fixedly installed at the output end of the gasoline hand drill main machine. The device is provided with the first power cut-off unit and the second power cut-off unit, in the using process of the device, when a drill bit is locked, a gasoline hand drill main machine cannot be subjected to the reverse torque effect to hurt the hands of a user, use safety accidents are reduced, and when the angle of the drilling device held by the user by hand does not meet the use standard, the safety of the user is improved. The locking head can be prevented from being clamped into the clamping groove, if a user forcibly uses the device, the situation that the drill bit is driven to rotate only under the magnetic action between the first magnetic coupling and the second magnetic coupling to drill holes in the wall face cannot be achieved, and therefore safety accidents caused by illegal use of the user are avoided, and loss of an operator is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of construction equipment, and specifically to a drilling device for civil engineering construction of a hydropower station. Background Art

[0002] During the construction of a hydropower station building, in order to install workpieces inside the wall, such as expansion bolts, etc., it is often necessary to pre-drill holes on the wall surface. According to a Chinese patent with the application publication number 202121838963.0, a wall drilling device for civil engineering construction is disclosed, which realizes the stable leftward movement of the drill bit into the center of the positioning ring plate, and then performs stable drilling operations on the wall surface. Furthermore, it can avoid the shaking of the drill rig body, etc., and can effectively improve the efficiency of drilling holes in the wall surface. During the use of this device, if the drill bit gets stuck and locked inside the wall during high-speed rotation, since the user needs a certain reaction time and cannot release the handle switch instantly when the drill bit is locked, it will generate a reverse torque on the user's hand and is likely to injure the user's hand, having certain potential safety hazards. Therefore, we propose a drilling device for civil engineering construction of a hydropower station to solve the above technical problems. Summary of the Invention

[0003] The present invention provides the following technical solution: A drilling device for civil engineering construction of a hydropower station, comprising:

[0004] A gasoline hand drill main body and a power cut-off unit, the power cut-off unit is fixedly installed on the output end of the gasoline hand drill main body;

[0005] A chuck, fixedly installed on the output end of the power cut-off unit;

[0006] A drill bit, fixedly installed at one end of the chuck away from the power cut-off unit.

[0007] As a preferred solution of the present invention, the power cut-off unit includes a first power cut-off unit, and the first power cut-off unit includes:

[0008] An aluminum alloy housing, fixedly connected to the outer shell of the output end of the gasoline hand drill main body through bolts;

[0009] A driving sleeve, fixedly installed on the outer wall of the output shaft of the gasoline hand drill main body;

[0010] Card slots, evenly distributed on the inner wall of the driving sleeve;

[0011] An outer end shaft, rotatably installed at one end of the aluminum alloy housing away from the gasoline hand drill main body and penetrating through the inside and outside of the aluminum alloy housing;

[0012] A driving disk, fixedly installed at one end of the outer end shaft close to the gasoline hand drill main body and located inside the driving sleeve;

[0013] The tensioning seats are fixedly mounted at equal angles on the side of the driving disc away from the main engine of the gasoline hand drill;

[0014] A slide groove is provided on a side surface of the tensioning seat close to the driving disc;

[0015] A slide bar, slidably mounted inside the slide groove;

[0016] The lock head is fixedly mounted on one end of the slide bar close to the inner wall of the driving sleeve, and the specifications of the lock head are adapted to the specifications of the card slot.

[0017] As a preferred solution of the present invention, the power cut-off unit 1 further includes:

[0018] A strip groove is formed through a side of the tensioning seat away from the driving disc, and the interior of the strip groove is connected with the interior of the slide groove;

[0019] A positioning rod 1 is fixedly mounted on a side of the slide bar away from the driving disc and slides through the strip groove;

[0020] Positioning rod 2 is fixedly mounted on a side of the tensioning seat away from the slide bar, and the positions of the tension spring 1 and the positioning rod 1 are adapted to the direction of the opening track of the slide slot;

[0021] The tension spring one is fixedly installed between the positioning rod one and the positioning rod two.

[0022] As a preferred solution of the present invention, the power cut-off unit further includes a power cut-off unit 2, and the power cut-off unit 2 includes:

[0023] The sink groove is provided in the middle of a side surface of the driving disc away from the outer end shaft;

[0024] The shaft pin is fixedly installed in the middle of the inner wall of the sink near the outer end shaft;

[0025] A three-claw turntable is rotatably mounted on the outer wall of the shaft pin;

[0026] The embedded grooves are arranged at equal angles on the outer wall of the three-claw turntable;

[0027] The arc-shaped permanent magnet is fixedly installed inside the embedded slot;

[0028] The placement grooves are arranged on the inner wall of the sink at equal angles, and the positions correspond to the arc-shaped permanent magnets one by one;

[0029] The winding coil is fixedly installed inside the placement slot, and the specifications of the winding coil are compatible with the specifications of the arc-shaped permanent magnet.

[0030] As a preferred solution of the present invention, the power cut-off unit 2 further includes:

[0031] The curved grooves are arranged at equal angles on the outer wall of the three-claw turntable and are located between two adjacent embedded grooves;

[0032] The taper rod is fixedly installed on one side of the slide bar close to the gasoline hand drill main body and at the end far from the lock head, and the position of the taper rod corresponds to the position of the curved groove one by one.

[0033] As a preferred solution of the present invention, the power cut-off unit two further includes:

[0034] The relief groove is equally angularly distributed and opened on the inner wall of one side of the sunken groove close to the outer end shaft. The position of the relief groove corresponds to the position of the taper rod one by one, and the taper rod slides inside the relief groove.

[0035] As a preferred solution of the present invention, the power cut-off unit two further includes:

[0036] The positioning rod three is fixedly installed on the inner wall of one side of the sunken groove close to the outer end shaft, and the position of the positioning rod three corresponds to the position of the curved groove one by one;

[0037] The positioning rod four is fixedly installed on one side of the sunken groove far from the outer end shaft and is located between two adjacent curved grooves;

[0038] The tension spring two is fixedly installed between the positioning rod three and the positioning rod four.

[0039] As a preferred solution of the present invention, the outer end shaft and the driving disc are coaxial, the driving disc and the driving sleeve are coaxial, the driving sleeve and the output shaft of the gasoline hand drill main body are coaxial. A magnetic coupling one is fixedly installed at the end of the output shaft of the gasoline hand drill main body. A sealing side plate is fixedly installed on one side of the driving disc far from the outer end shaft. A pivot shaft is fixedly installed in the middle of one side of the sealing side plate close to the gasoline hand drill main body. A magnetic attraction coupling two is fixedly installed at the end of the pivot shaft far from the sealing side plate, and the magnetic attraction coupling two is adapted to the magnetic coupling one.

[0040] As a preferred solution of the present invention, a chuck is fixedly installed at the output end of the outer end shaft, and is fixedly installed inside the chuck.

[0041] As a preferred solution of the present invention, an angle sensor is fixedly arranged inside the aluminum alloy housing, and is electrically connected between the placement groove and the angle sensor arranged inside the aluminum alloy housing.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] 1. In the present invention, when the drill bit is suddenly locked during rotation, the resilience of the first tension spring, through the connection of the first positioning rod, pushes the slide bar along the inner wall of the chute towards the center of the drive disk, and drives the lock head to move together, so that the lock head is disengaged from the card slot. After that, the rotation of the drive sleeve cannot directly drive the rotation of the lock head. Moreover, the magnetic force between the first magnetic coupling and the second magnetic coupling is relatively limited, which can ensure that when the drill bit is locked, the gasoline hand drill main body will not be affected by the reverse torque and injure the user's hand, reducing the occurrence of use safety accidents.

[0044] 2. In the present invention, when the angle at which the user holds the drilling device does not meet the use standard, the winding coil generates a magnetic effect, and under the magnetic action with the arc-shaped permanent magnet, it pushes the three-claw turntable to rotate along the periphery of the shaft pin. The rotation of the three-claw turntable drives the curved groove to rotate together, so that the inner wall of the curved groove contacts the outer wall of the relief groove, applying a thrust towards the center of the shaft pin to the relief groove. After the relief groove bears this thrust, it applies a thrust in the same direction to the slide bar and the lock head. After that, even if the user forcibly starts the gasoline hand drill main body and the drive disk rotates under the magnetic force between the first magnetic coupling and the second magnetic coupling, the slide bar cannot slide along the inside of the chute by centrifugal force. If the user forcibly uses this device, it is also impossible to drive the drill bit to rotate only under the magnetic force between the first magnetic coupling and the second magnetic coupling to drill the wall surface, thus avoiding the occurrence of safety accidents caused by the user's illegal use and avoiding losses to the employer. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of the present invention;

[0046] Figure 2 is a schematic side-sectional structural diagram of the aluminum alloy housing in the present invention;

[0047] Figure 3 in the present invention Figure 2 partial structural schematic diagram;

[0048] Figure 4 is a schematic internal structural diagram of the drive sleeve in the present invention;

[0049] Figure 5 is a schematic unfolded structural diagram of the sealing side plate and the drive disk in the present invention;

[0050] Figure 6 is a schematic internal structural diagram of the sinking groove in the present invention;

[0051] Figure 7 is a schematic structural diagram of the three-claw turntable in the present invention Figure 1 ;

[0052] Figure 8 is a schematic structural diagram of the three-claw turntable in the present inventionFigure 2 ;

[0053] Figure 9 This is a schematic structural diagram of the first magnetic coupling in the present invention.

[0054] In the figure: 100, gasoline hand drill main body; 101, the first magnetic coupling; 200, power cut-off unit; 201, aluminum alloy housing; 202, drive sleeve; 203, card slot; 204, outer end shaft; 205, drive disc; 206, tensioning seat; 207, sliding groove; 208, sliding bar; 209, lock head; 2010, strip-shaped groove; 2011, first positioning rod; 2012, second positioning rod; 2013, first tension spring; 2014, sinking groove; 2015, shaft pin; 2016, three-jaw turntable; 20161, curved groove; 2017, embedded groove; 2018, arc-shaped permanent magnet; 2019, placement groove; 2020, winding coil; 2021, push rod; 2022, relief groove; 2023, third positioning rod; 2024, fourth positioning rod; 2025, second tension spring; 2026, sealing side plate; 2027, pivot shaft; 2028, second magnetic coupling; 300, chuck; 400, drill bit. Detailed implementation manners

[0055] 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 of 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 belong to the protection scope of the present invention.

[0056] Please refer to Figures 1 to 9 , the technical solutions provided by the present invention specifically include the following embodiments:

[0057] A drilling device for hydropower station civil engineering construction includes a gasoline hand drill main body 100, a power cut-off unit 200, a chuck 300 and a drill bit 400. The power cut-off unit 200 is fixedly installed on the output end of the gasoline hand drill main body 100, the chuck 300 is fixedly installed on the output end of the power cut-off unit 200, and the drill bit 400 is fixedly installed at one end of the chuck 300 away from the power cut-off unit 200.

[0058] Further, specifically referring to Figure 3 , Figure 4 , Figure 7 and Figure 8 shown:

[0059] The power cut-off unit 200 includes a first power cut-off unit which includes an aluminum alloy housing 201, a drive sleeve 202, a card slot 203, an outer end shaft 204, a drive disc 205, a tensioning seat 206, a sliding groove 207, a sliding bar 208, a lock head 209, a strip-shaped groove 2010, a positioning rod one 2011, a positioning rod two 2012 and a first tension spring 2013. The aluminum alloy housing 201 is fixedly connected to the output end housing of the gasoline hand drill main machine 100 through bolts. The drive sleeve 202 is fixedly installed on the outer wall of the output shaft of the gasoline hand drill main machine 100. The card slots 203 are arranged at equal angles on the inner wall of the drive sleeve 202. The outer end shaft 204 is rotatably installed at one end of the aluminum alloy housing 201 away from the gasoline hand drill main machine 100 and penetrates through the inside and outside of the aluminum alloy housing 201. The drive disc 205 is fixedly installed at one end of the outer end shaft 204 close to the gasoline hand drill main machine 100 and is located inside the drive sleeve 202. The tensioning seats 206 are fixedly installed at equal angles on one side of the drive disc 205 away from the gasoline hand drill main machine 100. The sliding groove 207 is opened on one side of the tensioning seat 206 close to the drive disc 205. The sliding bar 208 is slidably installed inside the sliding groove 207. The lock head 209 is fixedly installed at one end of the sliding bar 208 close to the inner wall of the drive sleeve 202. The specification of the lock head 209 is adapted to the specification of the card slot 203. The strip-shaped groove 2010 penetrates through one side of the tensioning seat 206 away from the drive disc 205. The inside of the strip-shaped groove 2010 is communicated with the inside of the sliding groove 207. The positioning rod one 2011 is fixedly installed on one side of the sliding bar 208 away from the drive disc 205 and slidably penetrates through the inside of the strip-shaped groove 2010. The positioning rod two 2012 is fixedly installed on one side of the tensioning seat 206 away from the sliding bar 208. The positions of the first tension spring 2013 and the positioning rod one 2011 are adapted to the opening track direction of the sliding groove 207. The first tension spring 2013 is fixedly installed between the positioning rod one 2011 and the positioning rod two 2012. The outer end shaft 204 and the drive disc 205 are coaxial. The drive disc 205 and the drive sleeve 202 are coaxial. The drive sleeve 202 and the output shaft of the gasoline hand drill main machine 100 are coaxial. A first magnetic coupling 101 is fixedly installed at the output shaft end of the gasoline hand drill main machine 100. A sealing side plate 2026 is fixedly installed on one side of the drive disc 205 away from the outer end shaft 204. A pivot shaft 2027 is fixedly installed in the middle of one side of the sealing side plate 2026 close to the gasoline hand drill main machine 100. A second magnetic coupling 2028 is fixedly installed at one end of the pivot shaft 2027 away from the sealing side plate 2026. The second magnetic coupling 2028 is adapted to the first magnetic coupling 101.

[0060] Specifically, the construction worker holds the gasoline hand drill main body 100, aligns the drill bit 400 with the wall surface at the drilling position, and then presses the start switch of the gasoline hand drill main body 100, so that the output shaft of the gasoline hand drill main body 100 drives the magnetic coupling one 101 and the drive sleeve 202 to rotate. The rotation of the magnetic coupling one 101 drives the magnetic attraction coupling two 2028 to rotate through magnetic force. The rotation of the magnetic attraction coupling two 2028 further drives the sealing side plate 2026 to rotate together through the pivot shaft 2027. Since the sealing side plate 2026 is fixedly connected to the drive disk 205, the rotation of the sealing side plate 2026 drives the drive disk 205 and the outer end shaft 204 to rotate. The rotation of the positioning rod four 2024 drives the chuck 300 and the drill bit 400 to rotate together. At this time, due to the limited magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028, the rotation of the drill bit 400 caused solely by the magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028 is not sufficient to drill the wall surface. At the same time, the rotation of the drive disk 205 also drives the tensioning seat 206 and the sliding groove 207 to rotate together. Due to the sliding connection between the sliding bar 208 and the sliding groove 207, the rotation of the tensioning seat 206 with the drive disk 205 also drives the sliding bar 208 to rotate, causing the sliding bar 208 to generate a centrifugal force effect, which further pushes the lock head 209 to move away from the center of the drive disk 205 and snap into the internal part of the card slot 203. At this time, when the drive sleeve 202 rotates, it will drive the lock head 209, the sliding bar 208, the tensioning seat 206 and the drive disk 205 to rotate together under the clamping action of the card slot 203 and the lock head 209, and then drive the outer end shaft 204, the chuck 300 and the drill bit 400 to rotate to drill the wall surface;

[0061] When the drill bit suddenly jams during rotation, it causes the chuck 300, the outer end shaft 204 and the drive disk 205 to stop suddenly. The centrifugal force acting on the sliding bar 208 disappears. The resilience of the first tension spring 2013, through the connection of the positioning rod one 2011, pushes the sliding bar 208 to move along the inner wall of the sliding groove 207 towards the center of the drive disk 205, and drives the lock head 209 to move together, so that the clamping effect between the lock head 209 and the card slot 203 is released. After that, when the drive sleeve 202 rotates, it cannot directly drive the lock head 209 to rotate. That is to say, the drive sleeve 202 cannot drive the drive disk 205 to rotate through the connection of the lock head 209, the sliding bar 208, the tensioning seat 206, etc., and will not drive the outer end shaft 204, the chuck 300 and the drill bit 400 to rotate. At this time, relying only on the magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028, although the drill bit 400 can continue to rotate, the magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028 is relatively limited, which can ensure that when the drill bit 400 jams, the gasoline hand drill main body 100 will not be affected by the reverse torque and injure the user's hand, reducing the occurrence of use safety accidents.

[0062] Further, specifically referring to Figure 5 , Figure 6 , Figure 7 and Figure 8 shown:

[0063] The power cut-off unit 200 further includes a second power cut-off unit, and the second power cut-off unit includes a sunk groove 2014, a shaft pin 2015, a three-jaw turntable 2016, an embedded groove 2017, an arc-shaped permanent magnet 2018, a placement groove 2019, a winding coil 2020, a curved groove 20161, a push rod 2021 and a relief groove 2022. The sunk groove 2014 is opened in the middle of one side surface of the drive disk 205 away from the outer end shaft 204. The shaft pin 2015 is fixedly installed in the middle of the inner wall of the sunk groove 2014 close to the outer end shaft 204. The three-jaw turntable 2016 is rotatably installed on the outer wall of the shaft pin 2015. The embedded grooves 2017 are equally angularly distributed and opened on the outer wall of the three-jaw turntable 2016. The arc-shaped permanent magnet 2018 is fixedly installed inside the embedded groove 2017. The placement grooves 2019 are equally angularly distributed and opened on the inner wall of the sunk groove 2014, and the positions correspond to those of the arc-shaped permanent magnets 2018 one by one. The winding coil 2020 is fixedly installed inside the placement groove 2019, and the specifications of the winding coil 2020 are adapted to those of the arc-shaped permanent magnet 2018. The curved grooves 20161 are equally angularly distributed and opened on the outer wall of the three-jaw turntable 2016 and are located between two adjacent embedded grooves 2017. The push rod 2021 is fixedly installed on one side surface of the slide bar 208 close to the gasoline drill main body 100 and at the end away from the lock head 209. The position of the push rod 2021 corresponds to that of the curved groove 20161 one by one. The relief grooves 2022 are equally angularly distributed and opened on the inner wall of one side surface of the sunk groove 2014 close to the outer end shaft 204. The position of the relief groove 2022 corresponds to that of the push rod 2021 one by one. The push rod 2021 slides inside the relief groove 2022. An angle sensor is fixedly arranged inside the aluminum alloy housing 201, and an electrical connection is provided between the placement groove 2019 and the angle sensor arranged inside the aluminum alloy housing 201.

[0064] Specifically, when the angle at which the user holds the drilling device does not meet the usage standard, and the angle sensor inside the aluminum alloy housing 201 (a conventional product on the market, with no specific model limitation as long as its function can meet the usage requirements of this drilling device) detects a potential safety hazard in the usage angle of the gasoline hand drill main unit 100, the device will energize the winding coil 2020, causing the winding coil 2020 to generate a magnetic effect. Under the magnetic interaction with the arc-shaped permanent magnet 2018, the three-jaw turntable 2016 is pushed to rotate along the periphery of the axle pin 2015. The rotation of the three-jaw turntable 2016 drives the curved groove 20161 to rotate together, causing the inner wall of the curved groove 20161 to contact the outer wall of the relief groove 2022, applying a thrust force towards the center of the axle pin 2015 to the relief groove 2022. After the relief groove 2022 bears this thrust force, it applies the same-direction thrust to the slide bar 208 and the lock head 209. Thereafter, even if the user forcibly starts the gasoline hand drill main unit 100, and the drive disk 205 rotates under the magnetic force between the magnetic coupling one 101 and the magnetic coupling two 2028, the slide bar 208 cannot slide along the inside of the chute 207 due to centrifugal force. That is to say, the lock head 209 cannot be inserted into the inside of the card slot 203. At this time, if the user forcibly uses this device, the drill bit 400 cannot be rotated only under the magnetic force between the magnetic coupling one 101 and the magnetic coupling two 2028 to drill the wall, thus avoiding safety accidents caused by the user's illegal use and preventing losses to the employer.

[0065] Further, specifically referring to Figure 7 as shown in

[0066] The power cut-off unit two further includes a positioning rod three 2023, a positioning rod four 2024, and a tension spring two 2025. The positioning rod three 2023 is fixedly installed on the inner wall of the sink 2014 near the outer end shaft 204, and the position of the positioning rod three 2023 corresponds to the position of the curved groove 20161 one by one. The positioning rod four 2024 is fixedly installed on the side surface of the sink 2014 away from the outer end shaft 204 and is located between two adjacent curved grooves 20161. The tension spring two 2025 is fixedly installed between the positioning rod three 2023 and the positioning rod four 2024.

[0067] Specifically, when the three-jaw turntable 2016 rotates along the outer wall of the axle pin 2015, it will drive the positioning rod four 2024 to rotate together, causing the tension spring two 2025 to stretch and store energy. When the angle sensor inside the aluminum alloy housing 201 detects that the use angle of the device meets the use standard, the current of the winding coil 2020 is cut off, and the magnetic force between the winding coil 2020 and the arc permanent magnet 2018 ends. The resilience of the tension spring two 2025 in the stretched state drives the three-jaw turntable 2016 to rotate in the reverse direction and reset through the positioning rod four 2024, releasing the limit on the push-pull rod 2021 to ensure that the slide bar 208 can move freely inside the chute 207.

[0068] When the drilling device for hydropower station civil engineering construction in this solution is working, the construction worker holds the gasoline hand drill main body 100 and aligns the drill bit 400 with the wall surface of the drilling part. Then, the construction worker presses the start switch of the gasoline hand drill main body 100, so that the output shaft of the gasoline hand drill main body 100 drives the magnetic coupling one 101 and the drive sleeve 202 to rotate. The rotation of the magnetic coupling one 101 drives the magnetic attraction coupling two 2028 to rotate through magnetic force. The rotation of the magnetic attraction coupling two 2028 further drives the sealing side plate 2026 to rotate together with the pivot shaft 2027. Since the sealing side plate 2026 is fixedly connected to the drive disk 205, the rotation of the sealing side plate 2026 drives the drive disk 205 and the outer end shaft 204 to rotate together. The rotation of the positioning rod four 2024 drives the chuck 300 and the drill bit 400 to rotate together. At this time, due to the limited magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028, the rotation of the drill bit 400 caused solely by the magnetic force between the magnetic coupling one 101 and the magnetic attraction coupling two 2028 is not sufficient to drill the wall surface. At the same time, the rotation of the drive disk 205 also drives the tension seat 206 and the chute 207 to rotate together. Due to the sliding connection between the slide bar 208 and the chute 207, the rotation of the tension seat 206 with the drive disk 205 also drives the slide bar 208 to rotate together, causing the slide bar 208 to produce a centrifugal force effect, thereby pushing the lock head 209 to move away from the center of the drive disk 205 and snap into the card slot 203. At this time, when the drive sleeve 202 rotates, it will drive the lock head 209, the slide bar 208, the tension seat 206, and the drive disk 205 to rotate together under the clamping action of the card slot 203 and the lock head 209, and then drive the outer end shaft 204, the chuck 300, and the drill bit 400 to rotate to drill the wall surface.

[0069] When the drill bit is jammed or the holding angle of the user does not meet the use standard in this drilling device, the power between the output shaft of the gasoline hand drill main body 100 and the drill bit 400 will be cut off. Specifically:

[0070] When the drill bit suddenly jams during rotation, the chuck 300, the outer end shaft 204, and the drive disk 205 stop suddenly. The centrifugal force acting on the slide bar 208 disappears. The resilience of the first tension spring 2013, through the connection of the first positioning rod 2011, pushes the slide bar 208 to move along the inner wall of the chute 207 towards the center of the drive disk 205, and drives the lock head 209 to move together, so that the lock head 209 is disengaged from the clamping effect of the card slot 203. After that, the rotation of the drive sleeve 202 cannot directly act on the rotation of the lock head 209. That is to say, the drive sleeve 202 cannot drive the drive disk 205 to rotate through the connection of the lock head 209, the slide bar 208, the tension seat 206, etc., and will not drive the outer end shaft 204, the chuck 300, and the drill bit 400 to rotate. At this time, relying only on the magnetic force between the first magnetic coupling 101 and the second magnetic coupling 2028, although the drill bit 400 can continue to rotate, the magnetic force between the first magnetic coupling 101 and the second magnetic coupling 2028 is relatively limited, which can ensure that when the drill bit 400 jams, the gasoline hand drill main body 100 will not be injured by the reverse torque and the occurrence of safety accidents during use is reduced;

[0071] When the angle at which the user holds the drilling device does not meet the use standard, when the angle sensor inside the aluminum alloy housing 201 (a conventional product in the prior art, the specific model is not limited, and the function can meet the use of this drilling device) detects that the use angle of the gasoline hand drill main body 100 has a safety hazard, the device energizes the winding coil 2020 to make the winding coil 2020 generate a magnetic effect. Under the magnetic action with the arc permanent magnet 2018, the three-jaw turntable 2016 is pushed to rotate along the periphery of the pivot pin 2015. The rotation of the three-jaw turntable 2016 drives the curved groove 20161 to rotate together, so that the inner wall of the curved groove 20161 contacts the outer wall of the relief groove 2022, and applies a thrust towards the center of the pivot pin 2015 to the relief groove 2022. After the relief groove 2022 bears this thrust, it applies a thrust in the same direction to the slide bar 208 and the lock head 209. After that, even if the user forcibly starts the gasoline hand drill main body 100 and the drive disk 205 rotates under the magnetic force between the first magnetic coupling 101 and the second magnetic coupling 2028, the slide bar 208 cannot slide along the inside of the chute 207 by centrifugal force. That is to say, the lock head 209 cannot be inserted into the inside of the card slot 203. At this time, if the user forcibly uses this device, it is also impossible to drive the drill bit 400 to rotate only under the magnetic force between the first magnetic coupling 101 and the second magnetic coupling 2028 to drill the wall surface, thus avoiding the occurrence of safety accidents caused by the user's illegal use and avoiding losses to the employer.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A drilling device for civil engineering construction of a hydropower station, characterized in that: Including: A gasoline hand drill main body (100) and a power cut-off unit (200), and the power cut-off unit (200) is fixedly installed on the output end of the gasoline hand drill main body (100); A chuck (300), fixedly installed on the output end of the power cut-off unit (200); A drill bit (400), fixedly installed at one end of the chuck (300) far from the power cut-off unit (200).

2. The drilling device for hydropower station civil engineering construction according to claim 1, characterized in that: The power cut-off unit (200) includes a first power cut-off unit, and the first power cut-off unit includes: An aluminum alloy housing (201), fixedly connected to the outer shell of the output end of the gasoline hand drill main body (100) by bolts; A drive sleeve (202), fixedly installed on the outer wall of the output shaft of the gasoline hand drill main body (100); A card slot (203), equiangularly distributed and opened on the inner wall of the drive sleeve (202); An outer end shaft (204), rotatably installed at one end of the aluminum alloy housing (201) far from the gasoline hand drill main body (100), and penetrating through the inside and outside of the aluminum alloy housing (201); A drive disk (205), fixedly installed at one end of the outer end shaft (204) close to the gasoline hand drill main body (100), and located inside the drive sleeve (202); Tension seats (206), equiangularly distributed and fixedly installed on one side surface of the drive disk (205) far from the gasoline hand drill main body (100); A chute (207), opened on one side surface of the tension seat (206) close to the drive disk (205); A slide bar (208), slidably installed inside the chute (207); A lock head (209), fixedly installed at one end of the slide bar (208) close to the inner wall of the drive sleeve (202), and the specification of the lock head (209) is adapted to the specification of the card slot (203).

3. The drilling device for hydropower station civil engineering construction according to claim 2, characterized in that: The first power cut-off unit further includes: A strip-shaped groove (2010), penetratingly opened on one side surface of the tension seat (206) far from the drive disk (205), and the inside of the strip-shaped groove (2010) is communicated with the inside of the chute (207); A first positioning rod (2011), fixedly installed on one side surface of the slide bar (208) far from the drive disk (205), and slidably penetrating through the inside of the strip-shaped groove (2010); A second positioning rod (2012), fixedly installed on one side surface of the tension seat (206) far from the slide bar (208), and the positions of the first tension spring (2013) and the first positioning rod (2011) are adapted to the opening track direction of the chute (207); A first tension spring (2013), fixedly installed between the first positioning rod (2011) and the second positioning rod (2012).

4. The drilling device for hydropower station civil engineering construction according to claim 3, characterized in that: The power cut-off unit (200) further includes a second power cut-off unit, and the second power cut-off unit includes: A sunken groove (2014), opened in the middle of one side surface of the drive disk (205) far from the outer end shaft (204); The shaft pin (2015) is fixedly installed in the middle of the inner wall on one side of the sunk groove (2014) close to the outer end shaft (204); The three-jaw turntable (2016) is rotatably installed on the outer wall of the shaft pin (2015); The embedded grooves (2017) are arranged on the outer wall of the three-jaw turntable (2016) at equal angles; The arc-shaped permanent magnet (2018) is fixedly installed inside the embedded groove (2017); The placement grooves (2019) are arranged on the inner wall of the sunk groove (2014) at equal angles, and the positions correspond to those of the arc-shaped permanent magnets (2018) one by one; The winding coils (2020) are fixedly installed inside the placement grooves (2019), and the specifications of the winding coils (2020) are adapted to those of the arc-shaped permanent magnets (2018).

5. The drilling device for hydropower station civil engineering construction according to claim 4, characterized in that: The power cut-off unit two further includes: The curved grooves (20161) are arranged on the outer wall of the three-jaw turntable (2016) at equal angles and are located between two adjacent embedded grooves (2017); The push-pull rod (2021) is fixedly installed on one side of the slide bar (208) close to the gasoline hand drill main machine (100) and at the end far from the lock head (209), and the position of the push-pull rod (2021) corresponds to that of the curved groove (20161) one by one.

6. The drilling device for hydropower station civil engineering construction according to claim 5, characterized in that: The power cut-off unit two further includes: The relief grooves (2022) are arranged on the inner wall of one side of the sunk groove (2014) close to the outer end shaft (204) at equal angles. The positions of the relief grooves (2022) correspond to those of the push-pull rods (2021) one by one, and the push-pull rods (2021) slide inside the relief grooves (2022).

7. The drilling device for hydropower station civil engineering construction according to claim 6, characterized in that: The power cut-off unit two further includes: The positioning rod three (2023) is fixedly installed on the inner wall of one side of the sunk groove (2014) close to the outer end shaft (204), and the position of the positioning rod three (2023) corresponds to that of the curved groove (20161) one by one; The positioning rod four (2024) is fixedly installed on one side of the sunk groove (2014) far from the outer end shaft (204) and is located between two adjacent curved grooves (20161); The tension spring two (2025) is fixedly installed between the positioning rod three (2023) and the positioning rod four (2024).

8. The drilling device for hydropower station civil engineering construction according to claim 7, characterized in that: The outer end shaft (204) is coaxial with the drive disk (205), the drive disk (205) is coaxial with the drive sleeve (202), the drive sleeve (202) is coaxial with the output shaft of the gasoline hand drill main unit (100), a magnetic coupling one (101) is fixedly installed at the output shaft end of the gasoline hand drill main unit (100), a sealing side plate (2026) is fixedly installed on one side surface of the drive disk (205) away from the outer end shaft (204), a pivot shaft (2027) is fixedly installed in the middle of one side surface of the sealing side plate (2026) close to the gasoline hand drill main unit (100), a magnetic coupling two (2028) is fixedly installed at one end of the pivot shaft (2027) away from the sealing side plate (2026), and the magnetic coupling two (2028) is adapted to the magnetic coupling one (101).

9. The drilling device for hydropower station civil engineering construction according to claim 8, wherein: A chuck (300) is fixedly installed at the output end of the outer end shaft (204), and is fixedly installed inside the chuck (300).

10. The drilling device for hydropower station civil engineering construction according to claim 9, wherein: An angle sensor is fixedly arranged inside the aluminum alloy housing (201), and is electrically connected between the placement groove (2019) and the angle sensor arranged inside the aluminum alloy housing (201).

Images