A high efficiency umbrella drill with quick installation
By equipping the bevel drill bit with a visual inspection sensor and a runout handling mechanism, the bevel drill bit can be quickly disassembled and accurately inspected, solving the problem of increased runout after the centering tip wears out, and improving efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-04
- Publication Date
- 2026-04-24
AI Technical Summary
The lack of accurate detection and timely handling of wear on the centering tip of existing umbrella drill bits leads to increased sway, affecting efficiency and safety.
A high-efficiency bevel drill bit with rapid installation was designed, equipped with a visual inspection sensor and a runout handling mechanism. The visual inspection sensor accurately detects the runout amplitude of the bevel drill bit and triggers an electric telescopic rod for graded linkage protection. In case of minor damage, the rotation speed is limited, and in case of severe damage, the power source is cut off. A cooling mechanism is also provided to cool the bevel drill bit in real time.
It enables rapid disassembly and precise inspection of umbrella-shaped drill bits, prevents accelerated wear of the centering tip, improves efficiency and safety, and reduces the risk of equipment damage.
Smart Images

Figure CN121755778B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of umbrella drill technology, specifically to a high-efficiency umbrella drill that can be installed quickly. Background Technology
[0002] Umbrella-shaped drill bits are widely used in handheld electric drills due to their high hole-reaming efficiency and compatibility with various materials. They are typically fastened to the drill body via quick-release heads to meet the convenience requirements of on-site operations.
[0003] After prolonged use, the centering tip of the quick-release bevel drill bit is prone to wear and chipping, weakening its radial positioning capability and causing wobbling during rotation. However, current handheld drills and bevel drill bit assemblies generally lack precise wobbling detection, damage alerts, and corresponding handling mechanisms. This prevents operators from promptly and accurately detecting the damage to the centering tip and from taking appropriate usage measures based on the extent of damage. When the bevel drill's centering tip is slightly damaged but not completely ineffective, and drilling can continue, if the operator fails to take proper operating procedures due to lack of alerts, such as operating at low speeds or controlling pressure, and continues working at normal or high speeds, the wear on the centering tip will rapidly increase, affecting normal use. Summary of the Invention
[0004] The purpose of this invention is to provide a fast-installing, high-efficiency umbrella drill to solve the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency umbrella drill for quick installation, comprising a drill body, a power switch slidably connected to the drill body, a base box fixedly connected to the outer side wall of the drill body, a vision detection sensor fixedly connected to the outer side wall of the base box, a pull plate slidably connected through the interior of the base box, a limit hole formed on the pull plate, a power switch fixedly connected to the end of the pull plate away from the base box, side grooves formed on both sides of the pull plate, a first elastic flip plate rotatably connected to the interior of each side groove, a blocking plate fixedly connected to the side of the first elastic flip plate, a connector provided at the end of the pull plate, a sway handling mechanism and a cooling mechanism provided inside the base box, the sway handling mechanism comprising two limiting rails fixedly connected inside the base box, a plug slidably connected inside each of the two limiting rails, the contact ends of the plugs and the side grooves being made of frosted material, a first return spring fixedly connected to the outer side wall of the plug, the end of the first return spring away from the plug being connected to the inner wall of the limiting rail.
[0006] Preferably, a swing arm is rotatably connected to the outer side wall of each of the two insert blocks. Two base rods are fixedly connected inside the base box. A push plate is slidably connected to both base rods. The end of the swing arm away from the insert block is rotatably connected to the outer side wall of the push plate. A fixing plate is fixedly connected to the inner side wall of the base box. An electric telescopic rod is fixedly connected to the outer side wall of the fixing plate. A protrusion is fixedly connected to the end of the electric telescopic rod. A horizontal plate is fixedly connected to the outer side wall of the protrusion. A round rod is slidably connected to the horizontal plate. A pressing spring is sleeved on the outer side wall of the round rod. A disk is fixedly connected to the end of the round rod. A magnetic block is fixedly connected inside the electric drill body. The magnetic poles of the magnetic block are opposite to those of the disk.
[0007] Preferably, a base block is fixedly connected to the end of the round rod away from the disk, a side baffle is fixedly connected to the outer side wall of the base block, a second elastic flip plate is rotatably connected to the base block, a limit frame is fixedly connected to the end of the electric telescopic rod, and a top rod is fixedly connected to the bottom of the limit frame.
[0008] Preferably, a mounting plate is fixedly connected inside the base box, a positioning rod is slidably connected to the mounting plate, a tension spring is sleeved on the outer wall of the positioning rod, a connecting plate is fixedly connected to the end of the positioning rod, a rotating wheel is mounted on the connecting plate, a slide rail is provided inside the base box, a sliding plate is slidably connected inside the slide rail, a positioning spring is fixedly connected inside the slide rail, the end of the positioning spring is connected to the outer wall of the sliding plate, and a second wedge is fixedly connected to the end of the sliding plate, the second wedge being located directly below the rotating wheel.
[0009] Preferably, the bottom box has a sliding groove, a vertical plate is slidably connected to the sliding groove, a return spring is provided between the sliding groove and the vertical plate, a movable plate is fixedly connected to the outer side wall of the vertical plate, a square plate is fixedly connected to the bottom of the movable plate, and a magnetic ring is fixedly connected to the end of the vertical plate away from the square plate.
[0010] Preferably, a transmission rod is rotatably connected to the main body of the electric drill, a driven rod is slidably connected to the transmission rod, limit rods are fixedly connected to both sides of the driven rod, and magnetic plates are slidably connected to both limit rods. The magnetic poles of the magnetic plates are the same as the magnetic poles of the magnetic ring. A second return spring is sleeved on the limit rod, and a locking rod is fixedly connected to the outer wall of the magnetic plate. Both the driven rod and the transmission rod have side holes corresponding to the locking rods. An inner spring is fixedly connected inside the driven rod, and the end of the inner spring is connected to the bottom of the transmission rod.
[0011] Preferably, a quick-release head is fixedly connected to the bottom of the driven rod, a friction disc is fixedly connected to the quick-release head, multiple friction rods are fixedly connected to the drill body, the contact ends of the friction rods and the friction disc are made of frosted material, and an umbrella-shaped drill bit is installed on the quick-release head.
[0012] Preferably, the cooling mechanism includes a spray nozzle fixedly connected to the base box, a push rod slidably connected inside the spray nozzle, an electric reciprocating rod fixedly connected to the base box, the end of the electric reciprocating rod being fixedly connected to the push rod, an air intake hole on the spray nozzle, an air jet pipe connected to the end of the spray nozzle away from the push rod, an air jet box fixedly connected to the end of the air jet pipe, a sliding plate slidably connected to the air jet box, two air jet holes of different sizes on the sliding plate, a pressure spring fixedly connected to the outer wall of the sliding plate, and the other end of the pressure spring contacting the outer wall of the air jet box.
[0013] Preferably, a vertical plate is slidably connected to the outer side wall of the base box, a first wedge is fixedly connected to the end of the vertical plate, and the end of the vertical plate away from the first wedge is connected to the upright plate.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. This invention enables rapid disassembly of the umbrella drill bit through the quick-release head, improving efficiency. Simultaneously, a visual inspection sensor accurately detects the sway of the umbrella drill bit, distinguishing between minor and severe damage to the centering tip. This triggers slight and large-distance retraction of the electric telescopic rod, respectively, achieving tiered, interconnected protection. Minor damage triggers only soft protection such as friction constraint and speed limit, reminding operators to follow proper procedures. Severe damage triggers hard protection such as power lock, completely cutting off the power source to the drill body, preventing inexperienced operators from forcibly operating the drill, avoiding equipment damage and safety hazards, and improving the overall efficiency of the umbrella drill.
[0016] 2. The cooling mechanism in this invention can cool the umbrella-shaped drill bit by blowing air under normal working conditions. In response to the problem of reduced contact surface and increased frictional heat after slight wear of the centering tip, the cooling mechanism will automatically increase the airflow force, which can quickly remove the frictional heat between the centering tip and the hole wall and the cutting heat of the umbrella-shaped drill bit teeth, stabilize the working temperature of the centering tip, avoid its hardness from dropping sharply and wear from high-temperature annealing, reduce the thermal adhesion between the cutting edge and the chips, help protect the centering tip, delay the escalation of damage, and improve the reliability of equipment operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;
[0020] Figure 4 This is a schematic diagram of the bottom box structure of the present invention;
[0021] Figure 5 for Figure 4 Enlarged view of A in the middle;
[0022] Figure 6 This is a schematic diagram of the internal structure of the bottom box of the present invention. Figure 1 ;
[0023] Figure 7 This is a schematic diagram of the internal structure of the bottom box of the present invention. Figure 2 ;
[0024] Figure 8 This is a schematic diagram of the internal structure of the bottom box of the present invention. Figure 3 ;
[0025] Figure 9 for Figure 8 Enlarged view of B in the middle;
[0026] Figure 10 This is a schematic diagram of the internal structure of the bottom box of the present invention. Figure 4 ;
[0027] Figure 11 This is a partial structural diagram of the present invention. Figure 1 ;
[0028] Figure 12 This is a schematic diagram of the friction rod and magnetic ring structure of the present invention;
[0029] Figure 13 This is a schematic diagram of the friction rod and friction disk structure of the present invention;
[0030] Figure 14 This is a schematic diagram of the transmission rod and driven rod structure of the present invention;
[0031] Figure 15 This is a partial structural diagram of the present invention. Figure 2 ;
[0032] Figure 16 This is a partial structural diagram of the present invention. Figure 3 ;
[0033] Figure 17 for Figure 16 A magnified view of C.
[0034] The attached diagram lists the components represented by each number as follows:
[0035] 1. Drill body; 2. Base box; 3. Umbrella-shaped drill bit; 4. Quick-release bit; 5. Pull plate; 6. Power switch; 7. Limiting hole; 8. Side groove; 9. Electric telescopic rod; 10. Rail limiter; 11. First return spring; 12. Insert block; 13. Swing arm; 14. First elastic flip plate; 15. Air intake hole; 16. Protrusion; 17. Connector; 18. Limiting frame; 19. Top rod; 20. Horizontal plate; 21. Pressing spring; 22. Round rod; 23. Base block; 24. Side baffle; 25. Second elastic flip plate; 26. Disk disk; 27. Air vent; 28. Tension spring; 29. Positioning rod; 30. Base rod; 31. 32. Push plate; 33. Magnetic block; 34. Slide plate; 35. Moving plate; 36. Fixed plate; 37. First wedge; 38. Rotating wheel; 39. Second wedge; 40. Connecting plate; 41. Positioning spring; 42. Vision inspection sensor; 43. Vertical plate; 44. Return spring; 45. Moving plate; 46. Square plate; 47. Magnetic ring; 48. Friction rod; 49. Friction disc; 50. Transmission rod; 51. Driven rod; 52. Inner spring; 53. Magnetic plate; 54. Locking rod; 55. Second return spring; 56. Side hole; 57. Spray nozzle; 58. Push rod; 59. Air jet pipe; 60. Air jet box; Detailed Implementation
[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] Example 1: Please refer to Figures 1-17A quick-installation, high-efficiency umbrella-shaped drill includes a drill body 1, a power switch 6 slidably connected to the drill body 1, a base box 2 fixedly connected to the outer wall of the drill body 1, a vision detection sensor 41 fixedly connected to the outer wall of the base box 2, a pull plate 5 slidably connected through the interior of the base box 2, a limit hole 7 on the pull plate 5, and a power switch 6 fixedly connected to the end of the pull plate 5 away from the base box 2. Side grooves 8 are provided on both sides of the pull plate 5, and a first elastic flip plate 14 is rotatably connected inside each side groove 8. A blocking plate is fixedly connected to the side of the first elastic flip plate 14. A connector 17 is provided at the end of the pull plate 5. A sway handling mechanism and a cooling mechanism are provided inside the base box 2. The cooling mechanism includes a spray nozzle 56 fixedly connected to the base box 2, a push rod 57 slidably connected inside the spray nozzle 56, and a... An electric reciprocating rod is fixedly connected to a push rod 57 at its end. An air intake hole 15 is provided on a spray nozzle 56. An air jet pipe 58 is connected to the end of the spray nozzle 56 away from the push rod 57. An air jet box 59 is fixedly connected to the end of the air jet pipe 58. A slide plate 33 is slidably connected to the air jet box 59. Two air jet holes 27 of different sizes are provided on the slide plate 33. A pressure spring is fixedly connected to the outer wall of the slide plate 33. The other end of the pressure spring contacts the outer wall of the air jet box 59. The sway handling mechanism includes two limiting rails 10 fixedly connected inside the bottom box 2. An insert block 12 is slidably connected inside each of the two limiting rails 10. The contact ends of the insert block 12 and the side groove 8 are made of frosted material. A first return spring 11 is fixedly connected to the outer wall of the insert block 12. The end of the first return spring 11 away from the insert block 12 is connected to the inner wall of the limiting rail 10.
[0038] Two swing arms 13 are rotatably connected to the outer walls of the two insert blocks 12. Two base rods 30 are fixedly connected inside the base box 2. A push plate 31 is slidably connected to both base rods 30. The end of the swing arm 13 away from the insert block 12 is rotatably connected to the outer wall of the push plate 31. A fixing plate 35 is fixedly connected to the inner wall of the base box 2. An electric telescopic rod 9 is fixedly connected to the outer wall of the fixing plate 35. A protrusion 16 is fixedly connected to the end of the electric telescopic rod 9. A horizontal plate 20 is fixedly connected to the outer wall of the protrusion 16. A round rod 22 is slidably connected to the horizontal plate 20. A pressing spring 21 is sleeved on the outer wall of the round rod 22. A disk 26 is fixedly connected to the end of the round rod 22. A magnetic block 32 is fixedly connected inside the drill body 1. The magnetic poles of the magnetic block 32 are opposite to those of the disk 26.
[0039] A base block 23 is fixedly connected to the end of the round rod 22 away from the disk 26. A side baffle 24 is fixedly connected to the outer wall of the base block 23. A second elastic flip plate 25 is rotatably connected to the base block 23. A limit frame 18 is fixedly connected to the end of the electric telescopic rod 9. A top rod 19 is fixedly connected to the bottom of the limit frame 18.
[0040] In this embodiment, the operator first uses the quick-release head 4 to quickly clamp the umbrella-shaped drill bit 3 (this clamping structure is existing technology and will not be described in detail). After the umbrella-shaped drill bit 3 is clamped, the operator presses the power switch 6 with their finger. The power unit inside the drill body 1 drives the transmission rod 49 to rotate. The transmission rod 49 synchronously drives the driven rod 50 and the quick-release head 4 to rotate, thereby driving the umbrella-shaped drill bit 3 to rotate and realize the drilling operation. During the drilling process, the electric reciprocating rod in the base box 2 performs high-frequency reciprocating motion, driving the push rod 57 to perform synchronous reciprocating motion inside the spray nozzle 56. When the push rod 57 reciprocates, it draws external air into the spray nozzle 56 through the air intake hole 15, and then delivers it through the air jet pipe 58, and then sprays it obliquely onto the surface of the umbrella-shaped drill bit 3 through the smaller air jet hole 27. This system enables real-time cooling of the umbrella-shaped drill bit 3, preventing excessive cutting temperature from affecting drilling operations. During use, if the centering tip of the umbrella-shaped drill bit 3 is slightly damaged, its overall radial positioning capability will weaken, causing a slight wobble when rotating. The visual inspection sensor 41 accurately detects this wobble amplitude (this is existing technology and will not be elaborated further). When the visual inspection sensor 41 detects this slight wobble, it drives the electric telescopic rod 9 to slightly retract via a built-in signal transmitter (this is existing technology and will not be elaborated further). The slight retraction of the electric telescopic rod 9 causes the second elastic flip plate 25 to move to the right, and after moving to the right, it contacts the connector 17. The entire pull plate 5 is moved to the right by the connector 17 until the disk 26 is directly below the magnetic block 32. Because the magnetic poles of the disk 26 and the magnetic block 32 are opposite, the magnetic attraction force will overcome the spring force of the pressing spring 21, attracting the bottom block 23 and the second elastic flip plate 25 to move upward, so that the second elastic flip plate 25 is no longer in contact with the connector 17. During this process, the second elastic flip plate 25 has driven the pull plate 5 through the connector 17 to pull the power switch 6 back to the initial state. After the power switch 6 returns to the initial state, the power of the drill body 1 is cut off, thereby immediately reminding the operator that the centering tip of the umbrella drill bit 3 is slightly damaged. At the same time, the electric telescopic rod 9 moves the bottom block 23 and the second elastic flip plate 25 to the right. This will also simultaneously move the limiting frame 18, preventing it from contacting the push plate 31. Once the limiting frame 18 loses its pushing force on the push plate 31, the insert 12 will insert into the side groove 8 under the elastic force of the first reset spring 11. Since both the insert 12 and the side groove 8 are made of frosted material, they generate significant friction when in contact. If minor damage to the centering tip does not affect continued use, the operator can press the power switch 6 again to restore the power output of the drill body 1. Pressing the power switch 6 will cause the pull plate 5 to move synchronously. At this time, because the insert 12 is already inserted into the side groove 8, the pull plate 5 will be subject to significant frictional constraints during movement. Consequently, the pressing feel of the power switch 6 will change significantly due to this frictional constraint, making rapid pressing impossible.Even users without operating experience can immediately detect minor damage to the centering tip of the umbrella drill bit 3 through this tactile change, effectively improving operational standardization. Furthermore, after the insert block 12 is inserted into the side slot 8, pressing the power switch 6 moves the pull plate 5 to a certain extent. At this point, the insert block 12 contacts the first elastic flip plate 14, and under the limiting action of the first elastic flip plate 14, it prevents the pull plate 5 from moving further. After the pull plate 5 is limited, the pressing position of the power switch 6 is also limited, with its maximum pressing stroke limited to 70% (normal stroke is 100%). This prevents the drill body 1 from outputting its highest speed, allowing it to operate only under low to medium operating conditions, thus preventing the umbrella drill bit 3 from gradually worsening its sway due to high speed from the source of operation.
[0041] As the electric telescopic rod 9 slightly retracts, it also drives the top rod 19 to move synchronously via the limit frame 18. After the top rod 19 moves, it contacts and pushes the square plate 45. After the square plate 45 is pushed, it drives the vertical plate 42 to move against the elastic force of the return spring 43 via the moving plate 44. When the vertical plate 42 moves, it drives the magnetic ring 46 to move synchronously, so that the magnetic ring 46 moves away from the side of the magnetic plate 52. The repulsive magnetic force generated between the two disappears. At this time, under the elastic force of the second return spring 54, the magnetic plate 52 will drive the locking rod 53 to move outward, so that the locking rod 53 disengages from the side hole 55 opened on the transmission rod 49 and the driven rod 50. At this time, the transmission rod 49 and the driven rod 50 change from a rigid connection to a telescopic connection. In this state, if the operator applies too much downward pressure when using the electric drill body 1, exceeding the elastic force of the inner spring 51, the transmission rod 49 will retract inward into the driven rod 50. When the moving rod 49 retracts into the driven rod 50, the friction rod 47 fixedly connected to the drill body 1 will contact the friction disc 48. Since the multiple friction rods 47 on the drill body 1 remain fixed, while the friction disc 48 rotates synchronously with the quick-release head 4, the two will generate relative friction when they contact each other, thereby further reducing the rotational speed of the umbrella drill bit 3. After the centering tip is slightly worn, it only has a weak positioning ability. The high downward pressure will cause the cutting depth of the cutting teeth of the umbrella drill bit 3 to increase sharply. Actively reducing the rotational speed can significantly reduce the cutting force of the cutting teeth, thereby controlling the radial eccentric force within the range that the remaining positioning ability of the centering tip can bear. This suppresses the superposition and amplification of the sway from the source, allowing the umbrella drill bit 3 to maintain near coaxial rotation by relying on the auxiliary positioning of the hole wall. At the same time, the operator can observe the extension and retraction state of the transmission rod 49 and the driven rod 50 to judge whether the downward pressure applied to the drill body 1 is appropriate and make timely adjustments.
[0042] Example 2: Please refer to Figures 1-17 This embodiment further describes Example 1. A vertical plate 60 is slidably connected to the outer side wall of the bottom box 2. A first wedge 36 is fixedly connected to the end of the vertical plate 60. The end of the vertical plate 60 away from the first wedge 36 is connected to the upright plate 42.
[0043] An installation plate is fixedly connected inside the base box 2. A positioning rod 29 is slidably connected to the installation plate. A tension spring 28 is sleeved on the outer wall of the positioning rod 29. A connecting plate 39 is fixedly connected to the end of the positioning rod 29. A rotating wheel 37 is installed on the connecting plate 39. A slide rail is provided inside the base box 2. A sliding plate 34 is slidably connected inside the slide rail. A positioning spring 40 is fixedly connected inside the slide rail. The end of the positioning spring 40 is connected to the outer wall of the sliding plate 34. A second wedge 38 is fixedly connected to the end of the sliding plate 34. The second wedge 38 is located directly below the rotating wheel 37.
[0044] The bottom box 2 has a sliding groove, and a vertical plate 42 is slidably connected to the sliding groove. A return spring 43 is provided between the sliding groove and the vertical plate 42. A movable plate 44 is fixedly connected to the outer wall of the vertical plate 42. A square plate 45 is fixedly connected to the bottom of the movable plate 44. A magnetic ring 46 is fixedly connected to the end of the vertical plate 42 away from the square plate 45.
[0045] A transmission rod 49 is rotatably connected to the main body 1 of the electric drill. A driven rod 50 is slidably connected to the transmission rod 49. Limit rods are fixedly connected to both sides of the driven rod 50. Magnetic plates 52 are slidably connected to both limit rods. The magnetic poles of the magnetic plates 52 are the same as the magnetic poles of the magnetic ring 46. A second return spring 54 is sleeved on the limit rod. A locking rod 53 is fixedly connected to the outer wall of the magnetic plates 52. Side holes 55 corresponding to the locking rod 53 are opened on both the driven rod 50 and the transmission rod 49. An inner spring 51 is fixedly connected inside the driven rod 50. The end of the inner spring 51 is connected to the bottom of the transmission rod 49.
[0046] A quick-release head 4 is fixedly connected to the bottom of the driven rod 50. A friction disc 48 is fixedly connected to the quick-release head 4. Multiple friction rods 47 are fixedly connected to the drill body 1. The contact ends of the friction rods 47 and the friction disc 48 are made of frosted material. An umbrella-shaped drill bit 3 is installed on the quick-release head 4.
[0047] In this embodiment, the vertical plate 42 drives the magnetic ring 46 to move, changing the rigid connection between the transmission rod 49 and the driven rod 50 from an integral connection to a telescopic connection. Simultaneously, it also drives the vertical plate 60 to move. When the vertical plate 60 moves, it simultaneously drives the first wedge 36 to move. When the first wedge 36 moves, it overcomes the spring force of the pressure spring and pushes the sliding plate 33 to move, causing the larger air jet 27 to replace the smaller air jet 27 and enter the air jet box 59. After the larger air jet 27 enters the air jet box 59, the air jet force of the spray nozzle 56 increases significantly compared to before. After slight wear of the centering tip, it connects with the pre-drilled... As the contact area between the hole wall and the cutting edge decreases, the frictional force per unit area in the contact zone increases significantly during high-pressure drilling. Combined with the heat conduction from the cutting edge, the centering tip and the cutting edge are prone to localized high temperatures. If cooling is insufficient, the wear surface of the centering tip will experience a sharp drop in hardness due to high-temperature annealing. The slightly flattened small round head will quickly be worn into a large flat surface, or even chip and develop into moderate damage. However, by increasing the air blowing force, the frictional heat between the centering tip and the hole wall, as well as the cutting heat from the cutting edge, can be quickly removed, stabilizing the working temperature of the centering tip within the safe hardness range. At the same time, it reduces the contact temperature between the cutting edge and the chips, reducing thermal adhesion between them.
[0048] Severe wear of the centering tip causes the sway amplitude to exceed the preset threshold. After being accurately detected by the vision inspection sensor 41, the vision inspection sensor 41 drives the electric telescopic rod 9 to retract to its maximum distance via its built-in signal transmitter. When the electric telescopic rod 9 retracts to its maximum distance, it first pulls the pull plate 5 through the second elastic flip plate 25, causing the power switch 6 to return to its initial state and cutting off the power source of the drill body 1. After moving the disk 26 to the magnetic block 32 and making the second elastic flip plate 25 no longer contact the connector 17, the electric telescopic rod 9 will continue to retract until the protrusion 16 contacts the protruding tail end of the moving plate 34 and pulls the moving plate 34. When the plate 34 moves to the right against the elastic force of the positioning spring 40, the top plane of the second wedge 38 will no longer contact the rotating wheel 37. After the second wedge 38 loses its lifting effect on the connecting plate 39, the positioning rod 29 will move downward and insert into the limiting hole 7 under the pulling force of the tension spring 28, thus limiting the pull plate 5. After the pull plate 5 is limited, the power switch 6 is also locked and remains in the initial state and cannot be pressed. The power source of the corresponding electric drill body 1 will be continuously cut off to prevent inexperienced operators from continuing to use the equipment under the condition of severe wear of the centering tip.
[0049] It should be noted that the power output of the drill body 1 in this technical solution can be controlled by the pressing stroke of the power switch 6 (this is prior art and will not be elaborated further). The attached diagram shows the maximum pressing stroke of the power switch 6, which is the maximum output power of the drill body 1. At the same time, a spring is installed inside the drill body 1 to ensure that when the operator releases the power switch 6, the power switch 6 can promptly return to its initial state. When the electric telescopic rod 9 retracts a large distance, the push rod 19 pushes the vertical plate 42 to move to the right by a greater distance through the square plate 45 and the moving plate 44 than when it retracts slightly. The corresponding magnetic ring 46 will also move to the right a large distance, and the magnetic ring 46 that moves to the right a large distance does not contact the quick-release head 4, so there will be no motion interference. After the insert block 12 is inserted into the side groove 8, the pull plate 5 moves to the right and pulls the power switch 6. During the process of the power switch 6 returning to its initial state, when the insert block 12 contacts the first elastic flip plate 14, it will lift the first elastic flip plate 14 and flip it to the left, without any motion interference between the two. When the umbrella drill bit 3 is replaced, the visual detection sensor 41 will control the electric telescopic rod 9 to extend and return to its initial state. During the process of the electric telescopic rod 9 extending and returning to its initial state, it first disengages from the moving plate 34. The moving plate 34 returns to its original position under the elastic force of the positioning spring 40 and lifts the rotating wheel 37 again. The corresponding positioning rod 29 will also disengage from the limiting hole 7, so that the power switch 6 returns to its normal pressing state. As the electric telescopic rod 9 continues to extend, the second elastic flip plate 25 will contact the connector 17 and flip to the right under the push of the connector 17 until the bottom block 23 moves to the right side of the connector 17 (e.g., Figure 6 As shown), after the electric telescopic rod 9 returns to its original position, the limit frame 18 will push the push plate 31 again. Through the transmission action of the swing arm 13, the two insert blocks 12 will move to both sides and disengage from the side groove 8, so that the power switch 6 can restore the normal pressing feel. At the same time, after the electric telescopic rod 9 returns to its original position, the magnetic ring 46 will return to its original position under the action of the vertical plate 42. When the drill body 1 is not pressed, the transmission rod 49 and the two side holes 55 opened on the driven rod 50 are in the same state. After the magnetic ring 46 returns to its original position and is located on the right side of the magnetic plate 52 again, it will push the locking rod 53 into the two side holes 55 under the action of the repulsive magnetic force, so that the transmission rod 49 and the driven rod 50 will be restored to the state of rigid connection as a whole.
[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency umbrella drill for quick installation, comprising a drill body (1), characterized in that, A power switch (6) is slidably connected to the drill body (1). A base box (2) is fixedly connected to the outer wall of the drill body (1). A vision detection sensor (41) is fixedly connected to the outer wall of the base box (2). A pull plate (5) is slidably connected through the inside of the base box (2). A limit hole (7) is opened on the pull plate (5). The end of the pull plate (5) away from the base box (2) is fixedly connected to the power switch (6). Side grooves (8) are opened on both sides of the pull plate (5). A first elastic flip plate (14) is rotatably connected inside the side grooves (8) on both sides. 4) is fixedly connected to the side of the baffle plate, and the end of the pull plate (5) is provided with a connector (17). The bottom box (2) is provided with a sway handling mechanism and a cooling mechanism. The sway handling mechanism includes two limit rails (10) fixedly connected inside the bottom box (2). The two limit rails (10) are slidably connected with inserts (12). The contact ends of the inserts (12) and the side groove (8) are made of frosted material. A first return spring (11) is fixedly connected to the outer wall of the insert (12). The end of the first return spring (11) away from the insert (12) is connected to the inner wall of the limit rail (10). A swing arm (13) is rotatably connected to the outer side wall of each of the two inserts (12). Two bottom rods (30) are fixedly connected inside the bottom box (2). A push plate (31) is slidably connected to both bottom rods (30). The end of the swing arm (13) away from the insert (12) is rotatably connected to the outer side wall of the push plate (31). A fixing plate (35) is fixedly connected to the inner side wall of the bottom box (2). An electric telescopic rod (9) is fixedly connected to the outer side wall of the fixing plate (35). The end of the electric telescopic rod (9) is fixedly connected to a protrusion (16), a horizontal plate (20) is fixedly connected to the outer wall of the protrusion (16), a round rod (22) is slidably connected to the horizontal plate (20), a pressing spring (21) is sleeved on the outer wall of the round rod (22), a disk (26) is fixedly connected to the end of the round rod (22), and a magnetic block (32) is fixedly connected inside the electric drill body (1), the magnetic poles of the magnetic block (32) are opposite to the magnetic poles of the disk (26); The end of the round rod (22) away from the disk (26) is fixedly connected to a base block (23), a side baffle (24) is fixedly connected to the outer side wall of the base block (23), a second elastic flip plate (25) is rotatably connected to the base block (23), a limit frame (18) is fixedly connected to the end of the electric telescopic rod (9), and a top rod (19) is fixedly connected to the bottom of the limit frame (18). The cooling mechanism includes a spray nozzle (56) fixedly connected to the base box (2). A push rod (57) is slidably connected inside the spray nozzle (56). An electric reciprocating rod is fixedly connected to the base box (2). The end of the electric reciprocating rod is fixedly connected to the push rod (57). An air intake hole (15) is opened on the spray nozzle (56). An air jet pipe (58) is connected to one end of the spray nozzle (56) away from the push rod (57). An air jet box (59) is fixedly connected to the end of the air jet pipe (58). A sliding plate (33) is slidably connected to the air jet box (59). Two air jet holes (27) of different sizes are opened on the sliding plate (33). A pressure spring is fixedly connected to the outer wall of the sliding plate (33). The other end of the pressure spring is in contact with the outer wall of the air jet box (59).
2. The high-efficiency umbrella drill for rapid installation according to claim 1, characterized in that: The bottom box (2) is fixedly connected to the interior of the mounting plate, and a positioning rod (29) is slidably connected to the mounting plate. A tension spring (28) is sleeved on the outer side wall of the positioning rod (29). A connecting plate (39) is fixedly connected to the end of the positioning rod (29). A rotating wheel (37) is installed on the connecting plate (39). A slide rail is provided inside the bottom box (2). A sliding plate (34) is slidably connected inside the slide rail. A positioning spring (40) is fixedly connected inside the slide rail. The end of the positioning spring (40) is connected to the outer wall of the sliding plate (34). A second wedge (38) is fixedly connected to the end of the sliding plate (34). The second wedge (38) is located directly below the rotating wheel (37).
3. The high-efficiency umbrella drill for rapid installation according to claim 1, characterized in that: The bottom box (2) is provided with a sliding groove, and a vertical plate (42) is slidably connected to the sliding groove. A return spring (43) is provided between the sliding groove and the vertical plate (42). A movable plate (44) is fixedly connected to the outer wall of the vertical plate (42). A square plate (45) is fixedly connected to the bottom of the movable plate (44). A magnetic ring (46) is fixedly connected to the end of the vertical plate (42) away from the square plate (45).
4. The high-efficiency umbrella drill for rapid installation according to claim 1, characterized in that: A transmission rod (49) is rotatably connected to the main body (1) of the electric drill. A driven rod (50) is slidably connected to the transmission rod (49). Limiting rods are fixedly connected to both sides of the driven rod (50). Magnetic plates (52) are slidably connected to both limiting rods. The magnetic poles of the magnetic plates (52) are the same as the magnetic poles of the magnetic ring (46). A second reset spring (54) is sleeved on the limiting rod. A locking rod (53) is fixedly connected to the outer wall of the magnetic plate (52). Side holes (55) corresponding to the locking rod (53) are opened on both the driven rod (50) and the transmission rod (49). An inner spring (51) is fixedly connected inside the driven rod (50). The end of the inner spring (51) is connected to the bottom of the transmission rod (49).
5. The high-efficiency umbrella drill for rapid installation according to claim 4, characterized in that: The bottom of the driven rod (50) is fixedly connected to a quick-release head (4), and a friction disc (48) is fixedly connected to the quick-release head (4). Multiple friction rods (47) are fixedly connected to the main body of the electric drill (1). The contact ends of the friction rods (47) and the friction disc (48) are made of frosted material. An umbrella-shaped drill bit (3) is installed on the quick-release head (4).
6. The high-efficiency umbrella drill for rapid installation according to claim 3, characterized in that: A vertical plate (60) is slidably connected to the outer wall of the bottom box (2). A first wedge (36) is fixedly connected to the end of the vertical plate (60). The end of the vertical plate (60) away from the first wedge (36) is connected to the upright plate (42).
Citation Information
Patent Citations
Self-adjusting drilling device for aluminum alloy door and window machining
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Electric drill with air cooling function
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