A double drill bit building wall drilling device

Abstract

The present invention discloses a double-drill-bit building wall drilling device, including a shell, a power device, a cooling device and a drilling device, characterized in that a power device is provided at one end of the shell, a cooling device is provided at one side of the power device, a drilling device is connected to one side of the cooling device, and the drilling device includes a first transmission mechanism and a drilling mechanism. Beneficial effects: When the power device is running, the drilling device is driven to drill holes in the wall, and the cooling device is used to cool the drilling device while drilling holes, so that the temperature of the drilling device is prevented from being too high and damaged, and the service life of the machine can be effectively extended. When the power device is running, the drilling mechanism is driven to run through the first transmission mechanism, and the wall is drilled through the coaxial reversal of drill bit 1 and drill bit 2.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a double-drill-bit building wall drilling device. Background Art

[0002] The drill bit with cutting edge is called diamond drill bit. Diamond drill bit not only has long service life, but also can be reused. The diamond drill bit returned to the factory for repair has almost the same effect as the factory diamond drill bit, which can save a lot of drilling costs. In the process of use, the wall is cut by diamond drill rig to make holes on the wall to facilitate the passage of pipelines. When the diamond drill rig is running, it will generate huge torque when the diamond drill bit contacts and cuts the wall, which makes it easy for people to slip when drilling directly, resulting in injuries to workers. In addition, the huge torque will increase the physical exertion of workers, making the drilling work extremely difficult.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0004] The object of the present invention is to provide a double-drill-bit building wall drilling device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-drill-bit building wall drilling device comprises a shell, a power device, a cooling device and a drilling device, characterized in that a power device is provided at one end of the shell, a cooling device is provided at one side of the power device, a drilling device is connected to one side of the cooling device, the drilling device comprises a first transmission mechanism and a drilling mechanism, a first transmission mechanism is provided at one end of the shell, a drilling mechanism is connected to one side of the first transmission mechanism, the drilling mechanism comprises drill bit 1 and drill bit 2, the inner movable sleeve of drill bit 1 is provided with drill bit 2, one side of drill bit 1 is fixedly connected with a threaded sleeve, the inner wall of one end of the threaded sleeve is connected with a connecting piece through a bearing, a through hole is opened on one side of the connecting piece and passes through the drill bit 2, and one end of the connecting piece is fixedly connected to the drill bit 2.

[0006] Furthermore, the first transmission mechanism includes a transmission shaft 1 and a sleeve, one end of the housing is movably connected to the sleeve via a bearing, one side of the sleeve is processed with an external thread and is threadedly connected to the threaded sleeve, the other end of the sleeve is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshed with a bevel gear 2, the bevel gear 2 is movably connected to the housing via a rotating shaft, one side of the bevel gear 2 is meshed with a bevel gear 3, one side of the bevel gear 3 is fixedly connected to a transmission shaft 1, one side of the transmission shaft 1 is provided with a through groove, the transmission shaft 1 penetrates the bevel gear 1 and is movably sleeved in the sleeve, and the end of the through groove away from the bevel gear 3 is processed with a groove matching the connecting piece and is sleeved with a connecting piece.

[0007] Furthermore, the power device includes a power mechanism and a second transmission mechanism, a circular groove is processed on one side of the shell, a power mechanism is arranged in the circular groove, the power mechanism includes a motor and a heat sink, the motor is fixedly connected to the circular groove through the heat sink, the outer shaft of the motor is fixedly connected to a worm gear, a second transmission mechanism is arranged on one side of the worm gear, a plurality of air inlet holes are opened on the upper end of the circular groove close to the worm gear and a filter is fixedly connected thereto, and a protective net is fixedly connected to the opening of the circular groove.

[0008] Furthermore, the second transmission mechanism includes a transmission shaft 2 and a torque protection mechanism, the outer shaft of the motor is fixedly connected to gear 1, one side of the gear 1 is meshed with gear 2, one side of the gear 2 is fixedly connected to the transmission shaft 2, the end of the transmission shaft 2 away from the gear 2 is connected to gear 3 through the torque protection mechanism, one side of the gear 3 is meshed with gear 4, and one side of the gear 4 is fixedly connected to the transmission shaft 1.

[0009] Furthermore, the torque protection mechanism includes turntable 1 and turntable 2, the end of the transmission shaft 2 away from the gear 2 is fixedly connected to turntable 1, a plurality of spring grooves are opened on one side of the turntable 1, balls are slidably arranged in the spring grooves, a spring 1 is fixedly connected between the balls and the spring grooves, turntable 2 is arranged on one side of the turntable 1 and contacts with the turntable 1, a side of the turntable 2 away from the turntable 1 is fixedly connected to the gear 3, and a plurality of grooves matching the balls are opened on the other side of the turntable 2.

[0010] Furthermore, the cooling device includes a third transmission mechanism and a pressure mechanism. The third transmission mechanism is arranged on one side of the transmission shaft 2. The third transmission mechanism includes a bevel gear 4 and a bevel gear 5. The outer wall of the transmission shaft 2 is fixedly connected with the bevel gear 4. One side of the bevel gear 4 is meshed with the bevel gear 5. One side of the bevel gear 5 is fixedly connected with the transmission shaft 3. One side of the transmission shaft 3 is connected with a pressure mechanism.

[0011] Furthermore, the pressure mechanism includes a pressure cylinder and a cam, the outer wall of the transmission shaft three is movably connected with the pressure cylinder through a bearing, a pressure chamber is provided on one side of the pressure cylinder, a cam is arranged in the pressure chamber and is movably connected to the pressure cylinder through a bearing, the cam is fixedly connected to the outer wall of the transmission shaft three, a pressure relief chamber is provided on the other side of the pressure cylinder, a plurality of pressure relief holes are provided between the pressure relief chamber and the pressure chamber, a one-way valve one is fixedly connected to the side of the pressure relief hole close to the pressure relief chamber, a piston is slidably provided on the other side of the pressure relief hole, a groove is provided on one side of the piston, a one-way valve two is fixedly connected to the opening of the groove, a spring two is fixedly connected between the piston and the one-way valve one, the other end of the piston contacts the cam, a plurality of square grooves are provided on the side of the groove close to the cam, a water inlet pipe is fixedly connected to the lower end of the shell and extends into the pressure chamber, a drain pipe is fixedly connected to one side of the pressure relief chamber and is movably connected to the gear four through a bearing.

[0012] Furthermore, two limit plates are fixedly connected to one side of the shell close to the circular groove, a shoulder is provided at one end of the limit plate away from the shell, a sliding groove matching the limit plate is provided on the side of the shoulder close to the limit plate, and a limit plate is provided on the sliding sleeve, and a spring three is fixedly connected between the sliding groove and the limit plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When the power device is running, it drives the drilling device to drill holes in the wall. While drilling, the cooling device cools down the drilling device to prevent the temperature of the drilling device from being too high and damaged, which can effectively extend the service life of the machine. When the power device is running, the first transmission mechanism drives the drilling mechanism to run, and the wall is drilled by coaxial reversal of drill bit 1 and drill bit 2. When in contact with the wall, the torque of the wall is offset by drill bit 1 and drill bit 2, so that when the drilling device contacts the wall, it will not be offset due to the torque generated by cutting the wall, thereby avoiding injuries to workers during drilling. At the same time, it can also effectively reduce the physical exertion of workers, making drilling easier. Through the set through hole, the cooling device can transport coolant through the through hole to cool down drill bit 1 and drill bit 2.

[0015] (2) When the power device is running, the transmission shaft 1 rotates, thereby driving the connecting piece connected to it to rotate through the slot on one side of the transmission shaft 1, thereby rotating the drill bit 2. When the transmission shaft 1 rotates, the bevel gear 1 is driven to rotate through the bevel gear 3 and the bevel gear 2, thereby rotating the shaft sleeve. The rotation direction of the shaft sleeve is opposite to that of the transmission shaft 1. Therefore, the rotation direction of the drill bit 1 driven by the shaft sleeve is opposite to that of the drill bit 2, so that the two drill bits are coaxially reversed, the torque generated when contacting the wall is offset, and the shear force of the contact surface is increased, so that the drilling effect is better and the drilling efficiency is improved. By opening a through groove in the transmission shaft 1, the cooling device can transport liquid through the transmission shaft 1 to the drilling device to cool the drill bit. By using a heat sink to fix the motor in the circular groove, the contact area between the motor and the air can be increased, and the heat dissipation effect of the motor can be increased. The spiral When the motor is running, the wheel can inhale air through the air inlet hole and then discharge it through the opening of the circular groove, so that the air flows at high speed, further increasing the heat dissipation effect of the motor. The protective net and filter screen can prevent insects or foreign objects from being sucked in and colliding with the motor, thereby preventing the motor from being damaged. When the motor is running, gear one rotates, so that gear two drives transmission shaft two to rotate, and gear three is driven to rotate through the torque protection mechanism so that bevel gear four drives transmission shaft one to rotate. The torque protection mechanism can prevent the drilling device from reversing the machine and injuring the staff when the drilling device is stuck. When the drilling device is stuck, the torque between turntable one and turntable two gradually increases when the transmission shaft two continues to rotate, thereby squeezing the ball bearing to separate it from turntable two, thereby separating turntable one from turntable two, causing the transmission shaft two to idle, and preventing the machine from reversing when it is stuck.

[0016] (3) When the transmission shaft 2 rotates, the bevel gear 4 rotates, which causes the bevel gear 5 to rotate, so that the transmission shaft 3 drives the pressure mechanism to operate. When the transmission shaft 3 rotates, the cam rotates in the pressure chamber in the pressure cylinder, thereby squeezing the piston to slide in the pressure relief hole. The spring 2 cooperates with the cam to make the piston continue to reciprocate. The one-way valve 1 and the one-way valve 2 cooperate to continuously generate suction to suck water into the pressure chamber through the water inlet pipe, and then enter the groove of the piston through the square groove on the outer wall of the piston, and then through the one-way valve 1 and the one-way valve 2. Valve 2 and one-way valve 1 enter the pressure relief chamber, and are finally discharged through the provided drain pipe and then flow into the drill bit through the through groove of the transmission shaft 1 and the through hole of the connector to cool the drill bit. Through the provided drag shoulder and limit plate, when the machine is used to drill a hole in the wall, the shoulder is pressed against the drag shoulder to squeeze the machine to drill a hole in the wall. The vibration generated by the machine when drilling can be offset by the limit plate sliding in the slide groove of the drag shoulder to squeeze the spring 3, thereby reducing the shock of the machine and preventing the high-intensity vibration of the machine from causing fatigue to the human body when drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 2 is a schematic structural diagram of a double-drill-bit building wall drilling device according to an embodiment of the present invention;

[0019] Figure 2 2 is a schematic diagram of the internal structure of a double-drill-bit building wall drilling device according to an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 It is a structural schematic diagram of a drilling mechanism in a double-drill-bit building wall drilling device according to an embodiment of the present invention;

[0022] Figure 5 is a schematic structural diagram of a cooling device in a double-drill-bit building wall drilling device according to an embodiment of the present invention;

[0023] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0024] Reference numerals:

[0025] 1. Shell; 2. Power device; 3. Cooling device; 4. Drilling device; 5. First transmission mechanism; 6. Drilling mechanism; 7. Drill bit 1; 8. Drill bit 2; 9. Threaded sleeve; 10. Connector; 11. Transmission shaft 1; 12. Bushing; 13. Bevel gear 1; 14. Bevel gear 2; 15. Bevel gear 3; 16. Through groove; 17. Slot; 18. Through hole; 19. Power mechanism; 20. Second transmission mechanism; 21. Circular groove; 22. Motor; 23. Heat sink; 24. Worm gear; 25. Air inlet; 26. Protective net; 27. Transmission shaft 2; 28. Torque protection mechanism; 29. ​​Gear 1; 30. Gear 2; 31. Gear 3; 32. Gear 4; 33. Turntable 1; 34. Turntable 2; 35. Spring groove; 36. Ball; 37. Spring 1; 38. The third transmission mechanism; 39. Pressure mechanism; 40. Bevel gear 4; 41. Bevel gear 5; 42. Transmission shaft 3; 43. Pressure cylinder; 44. Cam; 45. Pressure chamber; 46. Pressure relief chamber; 47. Pressure relief hole; 48. One-way valve 1; 49. Piston; 50. Groove; 51. One-way valve 2; 52. Spring 2; 53. Square groove; 54. Water inlet pipe; 55. Drain pipe; 56. Limit plate; 57. Shoulder; 58. Slide; 59. Spring 3. DETAILED DESCRIPTION

[0026] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments: Embodiment 1

[0027] See also Figure 1-6According to an embodiment of the present invention, a double-drill-head building wall drilling device comprises a shell 1, a power device 2, a cooling device 3 and a drilling device 4, characterized in that a power device 2 is provided at one end of the shell 1, and a cooling device 3 is provided on one side of the power device 2. When the power device 2 is running, the drilling device 4 is driven to drill holes in the wall, and the drilling device 4 is cooled by the cooling device 3 during drilling, so that the temperature of the drilling device 4 is prevented from being damaged by excessively high temperature, which can effectively extend the service life of the machine. One side of the cooling device 3 is connected to the drilling device 4, and the drilling device 4 comprises a first transmission mechanism 5 and a drilling mechanism 6. One end of the shell 1 is provided with a first transmission mechanism 5, and one side of the first transmission mechanism 5 is connected to the drilling mechanism 6. The drilling mechanism 6 comprises a drill bit 1 7 and a drill bit 2 8. When the power device 2 is running, the first transmission mechanism 5 drives the drilling device 4 to drill holes in the wall. The drilling mechanism 6 is running, and the wall is drilled by coaxially reversing the drill bit 1 7 and the drill bit 2 8. When in contact with the wall, the torque of the wall is offset by the drill bit 1 7 and the drill bit 2 8, so that when the drilling device 4 contacts the wall, it will not be offset due to the torque generated by cutting the wall, thereby avoiding injuries to the workers when drilling. At the same time, it can also effectively reduce the physical exertion of the workers and make drilling easier. The inner movable sleeve of the drill bit 1 7 is provided with the drill bit 2 8, and one side of the drill bit 1 7 is fixedly connected with a threaded sleeve 9. The inner wall of one end of the threaded sleeve 9 is connected with a connecting piece 10 through a bearing. A through hole 18 is opened on one side of the connecting piece 10 and passes through the drill bit 2 8. Through the set through hole 18, the cooling device 3 can transport coolant through the through hole 18 to cool the drill bit 1 7 and the drill bit 2 8. One end of the connecting piece 10 is fixedly connected to the drill bit 2 8.

[0028] Through the above scheme of the present invention, when the power device 2 is running, it drives the drilling device 4 to drill holes in the wall, and while drilling, the drilling device 4 will be cooled by the cooling device 3, so that the temperature of the drilling device 4 is prevented from being damaged by being too high, and the service life of the machine can be effectively extended. When the power device 2 is running, the first transmission mechanism 5 drives the drilling mechanism 6 to run, and the wall is drilled by the coaxial reversal of the drill bit 1 7 and the drill bit 2 8. When in contact with the wall, the torque of the wall is offset by the drill bit 1 7 and the drill bit 2 8, so that when the drilling device 4 contacts the wall, it will not be offset due to the torque generated by cutting the wall, thereby avoiding injuries to the staff during drilling. At the same time, it can also effectively reduce the physical exertion of the staff, making drilling easier. Through the set through hole 18, the cooling device 3 can transport the coolant through the through hole 18 to cool the drill bit 1 7 and the drill bit 2 8. Embodiment 2

[0029] See also Figure 2-6According to a double-drill-bit building wall drilling device according to an embodiment of the present invention, the first transmission mechanism 5 includes a transmission shaft 11 and a sleeve 12, one end of the housing 1 is movably connected to the sleeve 12 through a bearing, one side of the sleeve 12 is processed with an external thread and is threadedly connected to the threaded sleeve 9, the other end of the sleeve 12 is fixedly connected to a bevel gear 13, one side of the bevel gear 13 is meshed with a bevel gear 2 14, the bevel gear 2 14 is movably connected to the housing 1 through a rotating shaft, one side of the bevel gear 2 14 is meshed with a bevel gear 3 15, one side of the bevel gear 3 15 is fixedly connected to a transmission shaft 11, one side of the transmission shaft 11 is provided with a through groove 16, the transmission shaft 11 passes through the bevel gear 13 and is movably connected. The through slot 16 is sleeved in the shaft sleeve 12, and one end of the through slot 16 away from the bevel gear three 15 is processed with a slot 17 matched with the connecting piece 10 and sleeved with the connecting piece 10. When the power device 2 is running, the transmission shaft 11 is rotated, thereby driving the connecting piece 10 engaged therewith to rotate through the slot 17 on one side of the transmission shaft 11, thereby rotating the drill bit 2 8. When the transmission shaft 11 rotates, the bevel gear three 15 and the bevel gear two 14 drive the bevel gear 13 to rotate, thereby rotating the shaft sleeve 12. The rotation direction of the shaft sleeve 12 is opposite to that of the transmission shaft 11, so the rotation direction of the drill bit 17 driven by the shaft sleeve 12 is opposite to that of the drill bit 2 8, so that the two drill bits are coaxially reversed, and the torque generated when contacting the wall is offset, and it can also In order to increase the shear force of the contact surface, make the drilling effect better, and improve the drilling efficiency, the cooling device 3 can transport the liquid through the transmission shaft 11 to the drilling device 4 to cool the drill bit through the through groove 16 opened on the transmission shaft 11. The power device 2 includes a power mechanism 19 and a second transmission mechanism 20. A circular groove 21 is processed on one side of the shell 1. The power mechanism 19 is arranged in the circular groove 21. The power mechanism 19 includes a motor 22 and a heat sink 23. The motor 22 is fixedly connected to the circular groove 21 through the heat sink 23. The outer shaft of the motor 22 is fixedly connected to a worm gear 24. A second transmission mechanism 20 is arranged on one side of the worm gear 24. The circular groove 21 is provided with a plurality of inlet holes on the upper end of one side close to the worm gear 24. The air hole 25 is fixedly connected with a filter screen, and the opening of the circular groove 21 is fixedly connected with a protective net 26. By using the heat sink 23 to fix the motor 22 in the circular groove 21, the contact area between the motor 22 and the air can be increased, and the heat dissipation effect of the motor 22 can be increased. The worm gear 24 can inhale air through the air inlet 25 when the motor 22 is running and discharge it through the opening of the circular groove 21, so that the air flows at a high speed, further increasing the heat dissipation effect of the motor 22. The protective net 26 and the filter screen can prevent insects or foreign objects from being sucked in and colliding with the motor 22, thereby preventing the motor 22 from being damaged. The second transmission mechanism 20 includes a transmission shaft 27 and a torque protection mechanism 28. The outer shaft of the motor 22 is fixedly connected with a gear 1 29.One side of the gear 1 29 is meshed with a gear 2 30, one side of the gear 2 30 is fixedly connected to a transmission shaft 27, one end of the transmission shaft 27 away from the gear 2 30 is connected to a gear 3 31 through a torque protection mechanism 28, one side of the gear 3 31 is meshed with a gear 4 32, one side of the gear 4 32 is fixedly connected to a transmission shaft 11, when the motor 22 is running, the gear 1 29 is rotated, so that the gear 2 30 drives the transmission shaft 2 27 to rotate, and the torque protection mechanism 28 drives the gear 3 31 to rotate so that the bevel gear 4 32 drives the transmission shaft 11 to rotate, and the torque protection mechanism 28 can prevent the drilling device 4 from reversing and injuring the staff when the drilling is stuck, and the torque protection mechanism 28 includes a turntable 1 33 and a turntable 2 34, and the transmission shaft 2 27 is away from the gear 2 30. One end is fixedly connected with a turntable 1 33, and one side of the turntable 1 33 is provided with a plurality of spring slots 35, and balls 36 are slidably arranged in the spring slots 35, and springs 1 37 are fixedly connected between the balls 36 and the spring slots 35. A turntable 2 34 is arranged on one side of the turntable 1 33 and contacts the turntable 1 33, and the side of the turntable 2 34 away from the turntable 1 33 is fixedly connected with the gear 3 31, and the other side of the turntable 2 34 is provided with a plurality of slots matched with the balls 36. When the drilling device 4 is stuck, the torque between the turntable 1 33 and the turntable 2 34 gradually increases when the transmission shaft 2 27 continues to rotate, thereby squeezing the balls 36 to separate from the turntable 2 34, so that the turntable 1 33 and the turntable 2 34 are separated, and the transmission shaft 2 27 is idle, thereby preventing the machine from reversing when it is stuck.

[0030] Through the above scheme of the present invention, when the power device 2 is running, the transmission shaft 11 is rotated, thereby driving the connecting piece 10 connected thereto to rotate through the slot 17 on one side of the transmission shaft 11, thereby rotating the drill bit 2 8. When the transmission shaft 11 rotates, the bevel gear 13 is driven to rotate through the bevel gear 3 15 and the bevel gear 2 14, thereby rotating the shaft sleeve 12. The rotation direction of the shaft sleeve 12 is opposite to that of the transmission shaft 11. Therefore, the rotation direction of the drill bit 7 driven by the shaft sleeve 12 is opposite to that of the drill bit 2 8, so that the two drill bits are coaxially reversed, the torque generated when contacting the wall is offset, and the shear force of the contact surface can be increased, so that the drilling effect is better and the drilling efficiency is improved. Through the through slot 16 opened in the transmission shaft 11, the cooling device 3 can transport the liquid through the transmission shaft 11 to the drilling device 4 to cool the drill bit. By using the heat sink 23 to fix the motor 22 in the circular groove 21, the contact area between the motor 22 and the air can be increased, and the heat dissipation effect of the motor 22 can be increased. The worm gear 24 can inhale air through the air inlet 25 when the motor 22 is running and then discharge it through the opening of the circular groove 21, so that the air flows at a high speed, further increasing the heat dissipation effect of the motor 22. The protective net 26 and the filter screen can prevent insects or foreign objects from being sucked in and colliding with the motor 22, thereby preventing the motor 22 from being damaged. When the motor 22 is running, the gear 1 29 is rotated, so that the gear 2 30 drives the transmission shaft 2 27 to rotate, and the torque protection mechanism 28 drives the gear 3 31 to rotate so that the bevel gear 4 32 drives the transmission shaft 1 11 to rotate. The torque protection mechanism 28 can prevent the drilling device 4 from causing the machine to reverse and injure the staff when the drilling device 4 is stuck. When the drilling device 4 is stuck, the torque between the turntable 1 33 and the turntable 2 34 continues to rotate, thereby squeezing the ball 36 to separate it from the turntable 2 34, thereby separating the turntable 1 33 from the turntable 2 34, and causing the transmission shaft 2 27 to idle, thereby preventing the machine from reversing when it is stuck. Embodiment 3

[0031] See also Figure 1 , Figure 2 and Figure 5According to a double-drill-bit building wall drilling device according to an embodiment of the present invention, the cooling device 3 includes a third transmission mechanism 38 and a pressure mechanism 39. The third transmission mechanism 38 is arranged on one side of the transmission shaft 27. The third transmission mechanism 38 includes a bevel gear 40 and a bevel gear 5 41. The outer wall of the transmission shaft 27 is fixedly connected with the bevel gear 40. One side of the bevel gear 40 is meshed with the bevel gear 5 41. One side of the bevel gear 5 41 is fixedly connected with the transmission shaft 3 42. One side of the transmission shaft 3 42 is connected with the pressure mechanism 39. When the transmission shaft 27 rotates, the bevel gear 40 is driven to rotate to make the bevel gear 5 41 rotate, so that the transmission shaft 3 42 drives the pressure mechanism 39 to operate. The pressure mechanism 39 The invention comprises a pressure cylinder 43 and a cam 44. The outer wall of the transmission shaft three 42 is movably connected with the pressure cylinder 43 through a bearing. A pressure chamber 45 is provided on one side of the pressure cylinder 43. A cam 44 is arranged in the pressure chamber 45 and is movably connected with the pressure cylinder 43 through a bearing. The cam 44 is fixedly connected to the outer wall of the transmission shaft three 42. A pressure relief chamber 46 is provided on the other side of the pressure cylinder 43. A plurality of pressure relief holes 47 are provided between the pressure relief chamber 46 and the pressure chamber 45. A one-way valve 48 is fixedly connected to the side of the pressure relief hole 47 close to the pressure relief chamber 46. A piston 49 is slidably provided on the other side of the pressure relief hole 47. A groove 50 is provided on one side of the piston 49. The opening of the groove 50 is fixedly connected with a A one-way valve 51 is provided, and a spring 52 is fixedly connected between the piston 49 and the one-way valve 48. The other end of the piston 49 contacts the cam 44. A plurality of square grooves 53 are provided on the side of the groove 50 close to the cam 44. A water inlet pipe 54 is fixedly connected to the lower end of the housing 1 and extends into the pressure chamber 45. A drain pipe 55 is fixedly connected to one side of the pressure relief chamber 46 and is movably connected to the gear 432 through a bearing. When the transmission shaft 42 rotates, the cam 44 is driven to rotate in the pressure chamber 45 in the pressure cylinder 43, thereby squeezing the piston 49 to slide in the pressure relief hole 47. The cooperation between the spring 52 and the cam 44 can make the piston 49 continuously reciprocate. 8 and the cooperation of the one-way valve 2 51 continuously generate suction to suck water into the pressure chamber 45 through the water inlet pipe 54, and then enter the groove 50 of the piston 49 through the square groove 53 on the outer wall of the piston 49, and then enter the pressure relief chamber 46 through the one-way valve 2 51 and the one-way valve 1 48, and finally discharge through the set drain pipe 55 and flow into the drill bit through the through groove 16 of the transmission shaft 11 and the through hole 18 of the connecting piece 10 to cool the drill bit. Two limit plates 56 are fixedly connected to one side of the shell 1 close to the circular groove 21, and a shoulder 57 is provided at one end of the limit plate 56 away from the shell 1, and a sliding groove 58 matching the limit plate 56 is provided on the side of the shoulder 57 close to the limit plate 56, and the sliding sleeve is provided with a limit plate 56.A spring 3 59 is fixedly connected between the slide groove 58 and the limit plate 56. By setting the drag shoulder 57 and the limit plate 56, when the machine is used to drill a hole in the wall, the shoulder is pressed against the drag shoulder 57 to squeeze the machine to drill the wall. The vibration generated by the machine when drilling can be offset by the limit plate 56 sliding in the slide groove 58 of the drag shoulder 57 to squeeze the spring 3 59, thereby reducing the shock of the machine and preventing the high-intensity vibration of the machine from causing fatigue to the human body when drilling.

[0032] Through the above scheme of the present invention, when the transmission shaft 27 rotates, the bevel gear 40 is driven to rotate and the bevel gear 5 41 is rotated, so that the transmission shaft 3 42 drives the pressure mechanism 39 to operate. When the transmission shaft 3 42 rotates, the cam 44 is driven to rotate in the pressure chamber 45 in the pressure cylinder 43, thereby squeezing the piston 49 to slide in the pressure relief hole 47, and the spring 2 52 is provided to cooperate with the cam 44 to make the piston 49 continue to reciprocate. The one-way valve 1 48 and the one-way valve 2 51 are provided to continuously generate suction force to suck water into the pressure chamber 45 through the water inlet pipe 54, and then enter the concave part of the piston 49 through the square groove 53 on the outer wall of the piston 49. The liquid flows into the groove 50, and then enters the pressure relief chamber 46 through the one-way valve 2 51 and the one-way valve 1 48, and finally is discharged through the drain pipe 55 and flows into the drill bit through the through groove 16 of the transmission shaft 11 and the through hole 18 of the connector 10 to cool the drill bit. Through the provided drag shoulder 57 and the limit plate 56, when the machine is used to drill a hole in the wall, the shoulder is pressed against the drag shoulder 57 to squeeze the machine to drill a hole in the wall. The vibration generated by the machine when drilling can be offset by the limit plate 56 sliding in the slide groove 58 of the drag shoulder 57 to squeeze the spring three 59, thereby reducing the shock of the machine and preventing the high-intensity vibration of the machine from causing fatigue to the human body when drilling.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-drill-bit building wall drilling device, comprising a housing (1), a power device (2), a cooling device (3) and a drilling device (4), characterized in that: A power device (2) is provided at one end of the housing (1), a cooling device (3) is provided at one side of the power device (2), a drilling device (4) is connected to one side of the cooling device (3), the drilling device (4) comprises a first transmission mechanism (5) and a drilling mechanism (6), a first transmission mechanism (5) is provided at one end of the housing (1), a drilling mechanism (6) is connected to one side of the first transmission mechanism (5), the drilling mechanism (6) comprises a drill bit 1 (7) and a drill bit 2 (8), an inner movable sleeve of the drill bit 1 (7) is provided with the drill bit 2 (8), a threaded sleeve (9) is fixedly connected to one side of the drill bit 1 (7), and the threaded sleeve (9) ) is connected to an inner wall of one end thereof via a bearing, a connecting piece (10) is provided on one side of the connecting piece (10) with a through hole (18) penetrating the drill bit 2 (8), and one end of the connecting piece (10) is fixedly connected to the drill bit 2 (8); the first transmission mechanism (5) comprises a transmission shaft 1 (11) and a shaft sleeve (12), one end of the housing (1) is movably connected to the shaft sleeve (12) via a bearing, one side of the shaft sleeve (12) is processed with an external thread and is threadedly connected to the threaded sleeve (9), the other end of the shaft sleeve (12) is fixedly connected to a bevel gear 1 (13), one side of the bevel gear 1 (13) is meshed with a bevel gear 2 (14), and the bevel gear 1 (13) is meshed with a bevel gear 2 (14). Gear 2 (14) is movably connected to the housing (1) via a rotating shaft; one side of bevel gear 2 (14) is meshed with bevel gear 3 (15); one side of bevel gear 3 (15) is fixedly connected to transmission shaft 1 (11); one side of transmission shaft 1 (11) is provided with a through slot (16); transmission shaft 1 (11) passes through bevel gear 1 (13) and is movably sleeved in the shaft sleeve (12); an end of the through slot (16) away from bevel gear 3 (15) is processed with a slot (17) matching with the connecting piece (10) and sleeved with the connecting piece (10); the power device (2) comprises a power mechanism (19) and a second transmission mechanism (20), a circular groove (21) is machined on one side of the housing (1), a power mechanism (19) is arranged in the circular groove (21), the power mechanism (19) comprises a motor (22) and a heat sink (23), the motor (22) is fixedly connected in the circular groove (21) via the heat sink (23), the outer shaft of the motor (22) is fixedly connected to a worm gear (24), a second transmission mechanism (20) is arranged on one side of the worm gear (24), a plurality of air inlet holes (25) are opened at the upper end of a side of the circular groove (21) close to the worm gear (24) and a filter screen is fixedly connected thereto, and a protective net (26) is fixedly connected to the opening of the circular groove (21);The second transmission mechanism (20) comprises a second transmission shaft (27) and a torque protection mechanism (28); the outer shaft of the motor (22) is fixedly connected to a first gear (29); one side of the first gear (29) is meshed with a second gear (30); one side of the second gear (30) is fixedly connected to a second transmission shaft (27); an end of the second transmission shaft (27) away from the second gear (30) is connected to a third gear (31) via the torque protection mechanism (28); the third gear (31) One side of the gear (30) is meshed with a gear (32), and one side of the gear (32) is fixedly connected to a transmission shaft (11); the torque protection mechanism (28) comprises a turntable (33) and a turntable (34); one end of the transmission shaft (27) away from the gear (30) is fixedly connected to the turntable (33), and one side of the turntable (33) is provided with a plurality of spring grooves (35), and each of the spring grooves (35) is slidably provided with a ball (36), and the ball (36) A spring 1 (37) is fixedly connected to the spring groove (35); a turntable 2 (34) is provided on one side of the turntable 1 (33) and is in contact with the turntable 1 (33); a side of the turntable 2 (34) away from the turntable 1 (33) is fixedly connected to the gear 3 (31); and a plurality of grooves matching the ball bearings (36) are provided on the other side of the turntable 2 (34); the cooling device (3) comprises a third transmission mechanism (38) and a pressure mechanism (39). , a third transmission mechanism (38) is provided on one side of the transmission shaft 2 (27), the third transmission mechanism (38) comprises a bevel gear 4 (40) and a bevel gear 5 (41), the outer wall of the transmission shaft 2 (27) is fixedly connected to the bevel gear 4 (40), one side of the bevel gear 4 (40) is meshed with the bevel gear 5 (41), one side of the bevel gear 5 (41) is fixedly connected to the transmission shaft 3 (42), and one side of the transmission shaft 3 (42) is connected to the pressure mechanism (39);The pressure mechanism (39) comprises a pressure cylinder (43) and a cam (44); the outer wall of the transmission shaft (42) is movably connected to the pressure cylinder (43) via a bearing; a pressure chamber (45) is provided on one side of the pressure cylinder (43); a cam (44) is provided in the pressure chamber (45) and is movably connected to the pressure cylinder (43) via a bearing; the cam (44) is fixedly connected to the outer wall of the transmission shaft (42); a pressure relief chamber (46) is provided on the other side of the pressure cylinder (43); a plurality of pressure relief holes (47) are provided between the pressure relief chamber (46) and the pressure chamber (45); a one-way valve (48) is fixedly connected to the pressure relief hole (47) on the side close to the pressure relief chamber (46); the pressure relief hole (47) is fixedly connected to the one-way valve (48); and the pressure relief hole (47) is fixedly connected to the one-way valve (48) on the side close to the pressure relief chamber (46). A piston (49) is slidably disposed on the other side of the hole (47), a groove (50) is provided on one side of the piston (49), a check valve (51) is fixedly connected to the opening of the groove (50), a spring (52) is fixedly connected between the piston (49) and the check valve (48), the other end of the piston (49) is in contact with the cam (44), a plurality of square grooves (53) are provided on the side of the groove (50) close to the cam (44), a water inlet pipe (54) is fixedly connected to the lower end of the housing (1) and extends into the pressure chamber (45), a drain pipe (55) is fixedly connected to one side of the pressure relief chamber (46) and is movably connected to the gear (32) through a bearing. ; 2. A double drill bit building wall drilling device according to claim 1, characterized in that: Two limit plates (56) are fixedly connected to one side of the shell (1) close to the circular groove (21); a drag shoulder (57) is provided at one end of the limit plate (56) away from the shell (1); a sliding groove (58) matching with the limit plate (56) is provided on one side of the drag shoulder (57) close to the limit plate (56); and the sliding sleeve is provided with the limit plate (56); and a spring three (59) is fixedly connected between the sliding groove (58) and the limit plate (56).

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