Quick switching device for electric drill bit

Abstract

The utility model provides a rapid switching device for an electric drill bit. The rapid switching device comprises a replaceable part and an assembly body connected with the replaceable part in a matched mode. The replaceable part comprises an embedded part and an exposed part connected with the embedded part, a movable groove is formed in one side of the embedded part, and a limiting groove is formed in the movable groove in an extending mode; the assembly body comprises a plug connector and a holding piece connected with the plug connector; the plug connector is provided with a plug groove and a rotating ring arranged outside the plug groove in a sleeving mode, the plug groove is provided with a displacement hole, a first limiting protruding point is arranged in the rotating ring and moves in the displacement hole, and the horizontal plane of the first limiting protruding point is higher than the horizontal plane of the displacement hole. A second limiting convex point is arranged in the inserting groove; the embedded part is connected with the inserting groove in an embedded mode. The movable grooves are respectively and movably connected with the first limiting convex point and the second limiting convex point; and the limiting groove is movably connected with the first limiting convex point.

Description

Technical Field

[0001] This application relates to the technical field of electric drills, in particular to a quick-switching device for electric drill bits. Background Art

[0002] An electric drill is a drilling tool powered by electricity. It is a conventional product in power tools and also the power tool product with the largest demand. The working principle of an electric drill is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting work and rotation, drives the working device through the transmission mechanism, drives the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and better penetrates the object.

[0003] Existing electric drills have the problems of inconvenient switching of electric drill bits, low replacement and disassembly efficiency, complex structure, and the need for professional personnel to cooperate in replacement. Utility Model Content

[0004] In view of the above problems, this application is proposed to provide a quick-switching device for electric drill bits that overcomes or at least partially solves the above problems, including:

[0005] A quick-switching device for electric drill bits includes a replaceable part and an assembly adapted to be connected to the replaceable part;

[0006] The replaceable part includes an embedded part and an exposed part connected to the embedded part. One side of the embedded part is provided with a movable groove, and a limiting groove is extended in the movable groove;

[0007] The assembly includes a plug-in part and a holding part connected to the plug-in part; the plug-in part is provided with a plug-in groove and a rotating ring sleeved outside the plug-in groove. The plug-in groove is provided with a displacement hole. The rotating ring is provided with a first limiting convex point, and the first limiting convex point moves in the displacement hole. The horizontal plane of the first limiting convex point is higher than the horizontal plane of the displacement hole; a second limiting convex point is provided in the plug-in groove;

[0008] The embedded part is connected to the plug-in groove in an embedded manner; the movable groove is respectively movably connected to the first limiting convex point and the second limiting convex point; the limiting groove is movably connected to the first limiting convex point.

[0009] Further, the holding part includes a first connecting part and a second connecting part;

[0010] One end of the first connecting part is connected to the plug-in part, one side of the first connecting part is connected to the second connecting part, the first connecting part and the second connecting part are in a "T" shape, and a motor is provided in the second connecting part.

[0011] Further, a coupling mechanism and a speed reduction mechanism are provided in the first connecting part;

[0012] One end of the first connecting member close to the plug-in member is provided with an opening, the coupling mechanism is connected to the replaceable member through the opening, the other end of the coupling mechanism is connected to the speed reduction mechanism, and the speed reduction mechanism is connected to the motor.

[0013] Further, the second connecting member is provided with a power switch, and the power switch is electrically connected to the motor.

[0014] Further, the motor is a brushless DC motor.

[0015] Further, one end of the second connecting member away from the first connecting member is provided with a load-bearing base.

[0016] Further, the bottom of the load-bearing base is provided with an anti-slip pad.

[0017] Further, the first connecting member further includes an adjusting knob, the adjusting knob is provided at one end of the first connecting member away from the plug-in member, and the adjusting knob is electrically connected to the motor.

[0018] Further, the material of the replaceable member is aluminum alloy.

[0019] Further, the material of the assembly is aluminum alloy.

[0020] This application has the following advantages:

[0021] In the embodiments of the present application, compared with the problem in the prior art that "existing electric drills have inconvenient switching of drill bits, low replacement and disassembly efficiency, complex structure, and require professional personnel to cooperate in replacement", the present application provides a solution of "a quick drill bit switching device", specifically: "A quick drill bit switching device includes a replaceable part and an assembly body adaptively connected to the replaceable part; the replaceable part includes an embedded part and an exposed part connected to the embedded part, one side of the embedded part is provided with a movable groove, and a limiting groove is extended in the movable groove; the assembly body includes a plug-in part and a holding part connected to the plug-in part; the plug-in part is provided with a plug-in groove and a rotating ring sleeved outside the plug-in groove, the plug-in groove is provided with a displacement hole, the rotating ring is provided with a first limiting bump, the first limiting bump moves in the displacement hole, and the horizontal plane of the first limiting bump is higher than the horizontal plane of the displacement hole; a second limiting bump is arranged in the plug-in groove; the embedded part is connected to the plug-in groove in an embedded manner; the movable groove is respectively movably connected to the first limiting bump and the second limiting bump; the limiting groove is movably connected to the first limiting bump". By means of the "replaceable part and the assembly body", the problem that "existing electric drills have inconvenient switching of drill bits, low replacement and disassembly efficiency, complex structure, and require professional personnel to cooperate in replacement" is solved, and the effects of "more convenient switching and disassembly, simple structure, and improved replacement efficiency" are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present application, the accompanying drawings required for the description of the present application will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic structural diagram of a quick drill bit switching device provided by an embodiment of the present application;

[0024] Figure 2 is a detailed partial schematic diagram of the replaceable part of a quick drill bit switching device provided by an embodiment of the present application;

[0025] Figure 3 is a detailed partial schematic diagram of the assembly body of a quick drill bit switching device provided by an embodiment of the present application;

[0026] Figure 4 is a detailed partial schematic diagram of the assembly body of a quick drill bit switching device provided by an embodiment of the present application.

[0027] In the accompanying drawings: 1. Replaceable part; 2. Assembly; 3. Insertion part; 4. Exposed part; 5. Movable groove; 6. Limit groove; 7. Plug-in part; 8. Holding part; 9. Plug-in groove; 10. Swivel ring; 11. First limit bump; 12. Second limit bump; 13. First connecting part; 14. Second connecting part; 15. Power switch; 16. Load-bearing base; 17. Adjusting knob; 18. Displacement hole. Detailed implementation mode

[0028] In order to make the objectives, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific implementation modes. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0029] Refer to Figures 1-4 , which shows a structural schematic diagram and a detailed partial schematic diagram of a rapid electric drill bit switching device provided by an embodiment of the present application;

[0030] A rapid electric drill bit switching device includes a replaceable part 1 and an assembly 2 adaptively connected to the replaceable part 1;

[0031] The replaceable part 1 includes an insertion part 3 and an exposed part 4 connected to the insertion part 3. One side of the insertion part 3 is provided with a movable groove 5, and a limit groove 6 extends in the movable groove 5;

[0032] The assembly 2 includes a plug-in part 7 and a holding part 8 connected to the plug-in part 7; the plug-in part 7 is provided with a plug-in groove 9 and a swivel ring 10 sleeved outside the plug-in groove 9. The plug-in groove 9 is provided with a displacement hole 18. The swivel ring 10 is provided with a first limit bump 11, and the first limit bump 11 moves in the displacement hole 18. The horizontal plane of the first limit bump 11 is higher than the horizontal plane of the displacement hole 18; a second limit bump 12 is provided in the plug-in groove 9;

[0033] The insertion part 3 is embedded and connected to the plug-in groove 9; the movable groove 5 is respectively movably connected to the first limit bump 11 and the second limit bump 12; the limit groove 6 is movably connected to the first limit bump 11.

[0034] In the embodiments of the present application, compared with the problem in the prior art that "the existing electric drill has the problems of inconvenient switching of the electric drill bit, low replacement and disassembly efficiency, complex structure, and the need for professional personnel to cooperate in the replacement", the present application provides a solution of "a rapid electric drill bit switching device", specifically: "a rapid electric drill bit switching device includes a replaceable part 1 and an assembly 2 adaptively connected to the replaceable part 1;

[0035] The replaceable part 1 includes an insert 3 and an exposed part 4 connected to the insert 3. One side of the insert 3 is provided with a movable groove 5, and a limiting groove 6 extends in the movable groove 5; the assembly 2 includes a plug-in part 7 and a holding part 8 connected to the plug-in part 7; the plug-in part 7 is provided with a plug-in groove 9 and a rotating ring 10 sleeved outside the plug-in groove 9. The plug-in groove 9 is provided with a displacement hole 18, and a first limiting bump 11 is arranged in the rotating ring 10. The first limiting bump 11 moves in the displacement hole 18, and the horizontal plane of the first limiting bump 11 is higher than the horizontal plane of the displacement hole 18; a second limiting bump 12 is arranged in the plug-in groove 9; the insert 3 is connected to the plug-in groove 9 in an embedded manner; the movable groove 5 is respectively movably connected to the first limiting bump 11 and the second limiting bump 12; the limiting groove 6 is movably connected to the first limiting bump 11. By means of the "replaceable part 1 and the assembly 2", the problems of "the existing electric drill has inconvenient switching of the drill bit, low replacement and disassembly efficiency, complex structure and requires professional personnel to cooperate for replacement" are solved, and the effects of "more convenient switching and disassembly, simple structure and improved replacement efficiency" are achieved.

[0036] Next, a quick drill bit switching device in this exemplary embodiment will be further described.

[0037] In an embodiment of the present invention, the replaceable part 1 is connected to the assembly 2 in an embedded manner; the exposed part 4 is provided with a drill bit at one end away from the insert 3; the movable groove 5 is in a funnel shape, and the limiting groove 6 is arranged at the slender part of the funnel.

[0038] In an embodiment of the present invention, the plug-in part 7 and the holding part 8 are integrally formed; the rotating ring 10 can move on the outer side wall of the plug-in groove 9, and the first limiting bump 11 in the rotating ring 10 moves in the displacement hole 18. When one end of the first limiting bump 11 in the displacement hole 18 moves to the other end of the displacement hole 18, the first limiting bump 11 and the second limiting bump 12 are parallel; it should be noted that when the rotating ring 10 does not rotate, the first limiting bump 11 is at one end of the displacement hole 18, and at this time, the first limiting bump 11 and the second limiting bump 12 are diagonally distributed; after the rotating ring 10 rotates, the first limiting bump 11 is at the other end of the displacement hole 18, and at this time, the first limiting bump 11 and the second limiting bump 12 are connected in a straight line.

[0039] In an embodiment of the present utility model, the holding member 8 includes a first connecting member 13 and a second connecting member 14; one end of the first connecting member 13 is connected to the plug-in member 7, one side of the first connecting member 13 is connected to the second connecting member 14, the first connecting member 13 and the second connecting member 14 are in a "T" shape, and a motor is provided in the second connecting member 14; in a specific embodiment, the connection between the first connecting member 13 and the second connecting member 14 is communicated.

[0040] In an embodiment of the present utility model, a coupling mechanism and a reduction mechanism are provided in the first connecting member 13;

[0041] The first connecting member 13 is provided with an opening at one end close to the plug-in member 7, the coupling mechanism is connected to the replaceable member 1 through the opening, the other end of the coupling mechanism is connected to the reduction mechanism, and the reduction mechanism is connected to the motor; in a specific embodiment, the coupling mechanism refers to a device that connects two shafts or a shaft and a rotating member, rotates together during the transmission of motion and power, and does not disengage under normal circumstances; it also serves as a safety device to prevent the connected machine parts from bearing excessive loads and plays an overload protection role; in this application, it plays a role in connecting the reduction mechanism and the replaceable member 1; the reduction mechanism can buffer the force when the drill bit rotates; the reduction mechanism plays a role in matching the rotational speed and transmitting torque between the prime mover and the working machine or the actuator, and can reduce the rotational speed and increase the torque.

[0042] In an embodiment of the present utility model, the second connecting member 14 is provided with a power switch 15, and the power switch 15 is electrically connected to the motor; in a specific embodiment, the power switch 15 is used to control the start and stop of the motor.

[0043] In an embodiment of the present utility model, the motor is a brushless DC motor; in a specific embodiment, the brushless DC motor is composed of a motor main body and a driver.

[0044] In an embodiment of the present utility model, a load-bearing base 16 is provided at one end of the second connecting member 14 away from the first connecting member 13; in a specific embodiment, the load-bearing base 16 is used for the assembly 2 to be stably placed.

[0045] In an embodiment of the present utility model, an anti-slip pad is provided at the bottom of the load-bearing base 16; in a specific embodiment, the anti-slip pad is used to prevent the assembly 2 from displacing when placed on a horizontal plane.

[0046] In an embodiment of the present utility model, the first connecting member 13 further includes an adjusting knob 17. The adjusting knob 17 is provided at one end of the first connecting member 13 away from the plug-in member 7, and the adjusting knob 17 is electrically connected to the motor. In a specific embodiment, the adjusting knob 17 can realize the adjustment of gears, which is divided into three gears. The first gear is counterclockwise rotation, the second gear is stop, and the third gear is clockwise rotation.

[0047] In an embodiment of the present utility model, the replaceable member 1 is made of aluminum alloy.

[0048] In an embodiment of the present utility model, the assembly 2 is made of aluminum alloy.

[0049] Embodiment 1

[0050] The installation process of the replaceable member 1 and the assembly 2 is as follows:

[0051] Rotate the swivel ring 10 of the assembly 2 outside the plug-in slot 9 so that the first limit bump 11 is displaced from one end of the displacement hole 18 to the other end of the displacement hole 18. At this time, the first limit bump 11 and the second limit bump 12 are linearly distributed. Then, embed one side of the movable slot 5 of the replaceable member 1 toward the second limit bump 12. When the embedding member 3 is completely embedded in the plug-in slot 9, at this time, the first limit bump 11 is at the connection between the limit slot 6 and the movable slot 5. Then, rotate the swivel ring 10 in the reverse direction, and the first limit bump 11 rotates back to its initial position in the displacement hole 18; the replaceable member 1 and the assembly 2 are firmly connected; for the disassembly method of the replaceable member 1 and the assembly 2, just operate in reverse according to the above process, and the present application will not repeat it.

[0052] Each embodiment in this specification is described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same and similar parts among the embodiments can be referred to each other.

[0053] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0054] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or terminal device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0055] The above provides a detailed introduction to a rapid switching device for an electric drill provided in this application. Specific examples are used in this text to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A rapid switching device for an electric drill bit, characterized in that, It includes a replaceable part and an assembly adapted to be connected to the replaceable part; The replaceable part includes an insert and an exposed part connected to the insert. One side of the insert is provided with a movable groove, and a limiting groove is extended in the movable groove; The assembly includes a plug-in part and a holding part connected to the plug-in part; the plug-in part is provided with a plug-in groove and a rotating ring sleeved outside the plug-in groove. The plug-in groove is provided with a displacement hole. The rotating ring is provided with a first limiting bump, and the first limiting bump moves in the displacement hole. The horizontal plane of the first limiting bump is higher than the horizontal plane of the displacement hole; a second limiting bump is provided in the plug-in groove; The insert is connected to the plug-in groove in an embedded manner; the movable groove is respectively movably connected to the first limiting bump and the second limiting bump; the limiting groove is movably connected to the first limiting bump.

2. The quick-switching device for an electric drill according to claim 1, characterized in that, The holding part includes a first connecting part and a second connecting part; One end of the first connecting part is connected to the plug-in part, one side of the first connecting part is connected to the second connecting part, the first connecting part and the second connecting part are in a "T" shape, and a motor is provided in the second connecting part.

3. The quick-switching device for an electric drill according to claim 2, characterized in that, A coupling mechanism and a speed reduction mechanism are provided in the first connecting part; The first connecting part is provided with an opening near the plug-in part. The coupling mechanism is connected to the replaceable part through the opening. The other end of the coupling mechanism is connected to the speed reduction mechanism, and the speed reduction mechanism is connected to the motor.

4. The quick switching device for an electric drill according to claim 2, characterized in that, The second connecting part is provided with a power switch, and the power switch is electrically connected to the motor.

5. The quick-switching device for an electric drill according to claim 2, wherein The motor is a brushless DC motor.

6. The quick-switching device for an electric drill according to claim 2, characterized in that, A load-bearing base is provided at one end of the second connecting part away from the first connecting part.

7. The quick switching device for an electric drill according to claim 6, wherein, An anti-slip pad is provided at the bottom of the load-bearing base.

8. The quick-switching device for an electric drill according to claim 2, wherein, The first connecting part further includes an adjusting knob, and the adjusting knob is provided at one end of the first connecting part away from the plug-in part. The adjusting knob is electrically connected to the motor.

9. The quick-switching device for an electric drill according to claim 1, wherein The material of the replaceable part is aluminum alloy.

10. The quick switching device for an electric drill bit according to claim 1, characterized in that, The material of the assembly is aluminum alloy.

Images