Double-speed pen body electric drill

Abstract

The utility model discloses a double-speed pen body electric drill which comprises a pen-shaped electric drill body, a mechanical gear shifting knob is sleeved on the outer side face of the pen-shaped electric drill body and rotates on the outer side face of the pen-shaped electric drill body, and a chuck is vertically arranged at the bottom end of the pen-shaped electric drill body. A planetary gear reducer is arranged at the bottom end of the interior of the pen-shaped electric drill body, a gear set is transversely arranged in the planetary gear reducer, the planetary gear reducer is in driving connection with a chuck, variable-speed arms are transversely arranged on the two sides of the exterior of the gear set, and the variable-speed arms transversely penetrate through the planetary gear reducer. The speed changing arm and the gear set are in the same movement direction, one end of the speed changing arm is in driving connection with the mechanical gear shifting rotary knob, protruding strips are formed on the two sides of the interior of the mechanical gear shifting rotary knob, the protruding strips are staggered in parallel, and an arc-shaped sliding groove is formed in one side of each protruding strip. And one side of the speed changing arm is inserted into the arc-shaped sliding groove.

Description

Technical Field

[0001] The utility model relates to the field of electric drills, in particular to a double-speed pen-type electric drill. Background Art

[0002] The electric drill is a commonly used tool. For the convenience of use, the outer size is usually large. When used in some small spaces or more precise occasions, the original electric drill is not suitable. Therefore, a double-speed pen-shaped electric drill with a smaller size is proposed. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0004] A dual-speed pen-type electric drill comprises a pen-shaped electric drill body, wherein a mechanical shift knob is mounted on the outer side of the pen-shaped electric drill body, and the mechanical shift knob rotates on the outer side of the pen-shaped electric drill body, and a chuck is vertically arranged at the bottom end of the pen-shaped electric drill body, a planetary gear reducer is arranged at the bottom end of the interior of the pen-shaped electric drill body, and a gear set is arranged transversely inside the planetary gear reducer, and the planetary gear reducer is drivingly connected to the chuck, speed change arms are arranged transversely on both sides of the exterior of the gear set, and the speed change arms transversely penetrate the planetary gear reducer, and the speed change arms and the gear set have the same movement direction, one end of the speed change arm is drivingly connected to the mechanical shift knob, and convex strips are formed on both sides of the interior of the mechanical shift knob, and the convex strips are parallel and offset to each other, an arc-shaped slide groove is formed on one side of the convex strip, and one side of the speed change arm is inserted into the arc-shaped slide groove.

[0005] Preferably, a speed shift arm sliding groove is provided between the speed shift arm and the planetary gear reducer, and the speed shift arm sliding groove is formed on the side of the planetary gear reducer, the speed shift arm sliding groove passes through the planetary gear reducer, and the speed shift arm passes through the speed shift arm sliding groove, and the speed shift arm moves inside the speed shift arm sliding groove.

[0006] Preferably, a drill tool is vertically inserted at the bottom end of the chuck, and a magnet is arranged between the drill tool and the chuck, the magnet is horizontally located at the top end of the chuck, and the magnet and the drill tool are magnetically connected, a main shaft is arranged between the chuck and the planetary gear reducer, and one end of the main shaft is drive-connected to the planetary gear reducer, and the other end of the main shaft is assembled with the chuck, a chuck sleeve is mounted on the outside of the chuck, the drill tool passes through the chuck sleeve, and the chuck sleeve is threadedly fixed to the outside of the main shaft.

[0007] Preferably, a bit mounting groove is provided between the main shaft and the chuck, and the bit mounting groove is formed at one end of the main shaft, and a bit is inserted into the bit mounting groove.

[0008] Preferably, a motor is provided inside the pen-shaped electric drill body, and the motor is drivingly connected to the planetary gear reducer, a control panel is electrically provided on one side of the motor, and the control panel is located inside the pen-shaped electric drill body, a battery is electrically provided on one side of the control panel, and the battery is vertically located inside the pen-shaped electric drill body, and the battery is electrically connected to the motor through the control panel.

[0009] Preferably, a button is disposed on the outside of the pen-shaped electric drill body, and the button and the outer side surface of the pen-shaped electric drill body are in the same vertical plane, and the button is electrically connected to the control panel.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when the mechanical shift knob is rotated on the outer side of the pen-shaped electric drill body, the convex strip and the arc-shaped slide groove will be driven to move along the side of the pen-shaped electric drill body, so that the arc-shaped slide groove moves on the side of the speed change arm, and then the speed change arm will change its position along the path inside the arc-shaped slide groove and move up and down on the side of the planetary gear reducer, thereby driving the gear set to move inside the planetary gear reducer, thereby shifting the output speed of the chuck and the chuck sleeve makes the chuck and the drill tool fixed on the main shaft, so that when the planetary gear reducer drives the main shaft and the chuck to rotate, the drill tool can be driven to rotate. After the chuck sleeve is unscrewed from the side of the main shaft, the chuck and the drill tool can be pulled out from the bit mounting groove on the main shaft, so that the bit can be inserted into the bit mounting groove and the pen-shaped electric drill body can quickly replace the drill tool or the bit.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of a dual-speed pen-type electric drill;

[0014] Figure 2 Another schematic diagram of the structure of a dual-speed pen-type electric drill;

[0015] Figure 3 It is another structural schematic diagram of a dual-speed pen-type electric drill;

[0016] Figure 4 It is a schematic diagram of the structure of a mechanical shift knob;

[0017] Figure 5 It is a structural schematic diagram of a planetary gear reducer;

[0018] Figure 6 is another structural schematic diagram of a planetary gear reducer;

[0019] Figure 7 The structural diagram of the main axis;

[0020] Figure 8 Another structural diagram of the main axis.

[0021] Shown in the figure: 1. Pen-shaped electric drill body, 2. Mechanical shift knob, 3. Chuck cover, 4. Drill tool, 5. Button, 6. Control panel, 7. Motor, 8. Chuck, 9. Magnet, 10. Planetary gear reducer, 11. Gear set, 12. Speed ​​change arm, 13. Raised strip, 14. Arc-shaped slide groove, 15. Speed ​​change arm sliding groove, 16. Battery, 17. Spindle, 18. Bit mounting groove, 19. Bit. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-8In the embodiment of the utility model, a dual-speed pen-type electric drill comprises a pen-shaped electric drill body 1, a mechanical shift knob 2 is mounted on the outer side of the pen-shaped electric drill body 1, and the mechanical shift knob 2 rotates on the outer side of the pen-shaped electric drill body 1, and a chuck 8 is vertically arranged at the bottom end of the pen-shaped electric drill body 1, a planetary gear reducer 10 is arranged at the bottom end of the inner part of the pen-shaped electric drill body 1, and a gear set 11 is arranged horizontally inside the planetary gear reducer 10, and the planetary gear reducer 10 is drivingly connected to the chuck 8, and speed change arms 12 are arranged horizontally on both sides of the outer side of the gear set 11, and the speed change arm 12 horizontally penetrates the planetary gear reducer 10, and the speed change arm 12 and the gear set 11 are in the same movement direction, and one end of the speed change arm 12 is connected to the mechanical shift knob 2 The mechanical shift knob 2 is driven and connected thereto, and convex strips 13 are formed on both sides of the interior of the mechanical shift knob 2, and the convex strips 13 are parallel and offset to each other, and an arc-shaped groove 14 is formed on one side of the convex strip 13, and one side of the speed change arm 12 is inserted into the arc-shaped groove 14, so that when the mechanical shift knob 2 is rotated on the outer side of the pen-shaped electric drill body 1, the convex strip 13 and the arc-shaped groove 14 are driven to move along the side of the pen-shaped electric drill body 1, so that the arc-shaped groove 14 moves on the side of the speed change arm 12, and the speed change arm 12 changes its position along the path inside the arc-shaped groove 14 and moves up and down 1 on the side of the planetary gear reducer 10, thereby driving the gear set 11 to move inside the planetary gear reducer 10, thereby shifting the output speed of the chuck 8.

[0024] A speed shift arm sliding groove 15 is provided between the speed shift arm 12 and the planetary gear reducer 10, and the speed shift arm sliding groove 15 is formed at the side of the planetary gear reducer 10, the speed shift arm sliding groove 15 passes through the planetary gear reducer 10, and the speed shift arm 12 passes through the speed shift arm sliding groove 15, and the speed shift arm 12 moves inside the speed shift arm sliding groove 15.

[0025] A drill tool 4 is vertically inserted at the bottom end of the chuck 8, and a magnet 9 is arranged between the drill tool 4 and the chuck 8, the magnet 9 is horizontally located at the top end of the chuck 8, and the magnet 9 is magnetically connected to the drill tool 4, a spindle 17 is arranged between the chuck 8 and the planetary gear reducer 10, and one end of the spindle 17 is drivingly connected to the planetary gear reducer 10, and the other end of the spindle 17 is assembled with the chuck 8, a chuck sleeve 3 is sleeved on the outside of the chuck 8, and the drill tool 4 passes through the chuck sleeve 3, and the chuck sleeve 3 is threadedly fixed to the outside of the spindle 17, and then the chuck 8 is fixed to the spindle 17 together with the drill tool 4 through the chuck sleeve 3, so that when the planetary gear reducer 10 drives the spindle 17 and the chuck 8 to rotate, the drill tool 4 can be driven to rotate.

[0026] A bit mounting groove 18 is provided between the main shaft 17 and the chuck 8, and the bit mounting groove 18 is formed at one end of the main shaft 17, and a bit 19 is inserted into the bit mounting groove 18, so that after the chuck sleeve 3 is screwed out from the side of the main shaft 17, the chuck 8 together with the drill 4 can be pulled out from the bit mounting groove 18 on the main shaft 17, so that the bit 19 can be inserted into the bit mounting groove 18 and the pen-shaped electric drill body 1 can quickly replace the drill 4 or the bit 19.

[0027] A motor 7 is provided inside the pen-shaped electric drill body 1, and the motor 7 is drive-connected to the planetary gear reducer 10. A control panel 6 is electrically provided on one side of the motor 7, and the control panel 6 is located inside the pen-shaped electric drill body 1. A battery 16 is electrically provided on one side of the control panel 6, and the battery 16 is vertically located inside the pen-shaped electric drill body 1. The battery 16 is electrically connected to the motor 7 through the control panel 6, and energy is transmitted to the motor 7 through the battery 16, and the speed of the motor 7 is controlled through the control panel 6, so as to adjust the rotation speed between the planetary gear reducer 10 and the chuck 8.

[0028] A button 5 is disposed outside the pen-shaped electric drill body 1 , and the button 5 and the outer side surface of the pen-shaped electric drill body 1 are in the same vertical plane, and the button 5 is electrically connected to a control panel 6 , so that the rotation speed of the motor 7 is controlled by the button 5 .

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A dual-speed pen-shaped electric drill, comprising a pen-shaped electric drill body, characterized in that: A mechanical shift knob is mounted on the outer side of the pen-shaped electric drill body, and the mechanical shift knob rotates on the outer side of the pen-shaped electric drill body, and a chuck is vertically arranged at the bottom end of the pen-shaped electric drill body, a planetary gear reducer is arranged at the bottom end of the inside of the pen-shaped electric drill body, and a gear set is arranged horizontally inside the planetary gear reducer, and the planetary gear reducer and the chuck are drivingly connected, speed change arms are arranged horizontally on both sides of the outside of the gear set, and the speed change arms penetrate the planetary gear reducer horizontally, and the speed change arms and the gear set have the same movement direction, one end of the speed change arm is drivingly connected to the mechanical shift knob, and convex strips are formed on both sides of the inside of the mechanical shift knob, and the convex strips are parallel and offset to each other, an arc-shaped slide groove is formed on one side of the convex strip, and one side of the speed change arm is inserted into the arc-shaped slide groove.

2. The dual-speed pen-type electric drill according to claim 1, characterized in that: A speed shift arm sliding groove is arranged between the speed shift arm and the planetary gear reducer, and the speed shift arm sliding groove is formed at the side of the planetary gear reducer. The speed shift arm sliding groove passes through the planetary gear reducer, and the speed shift arm passes through the speed shift arm sliding groove, and the speed shift arm moves inside the speed shift arm sliding groove.

3. The dual-speed pen-type electric drill according to claim 1, characterized in that: A drill tool is vertically inserted at the bottom end of the chuck, and a magnet is arranged between the drill tool and the chuck, the magnet is horizontally located at the top end of the chuck, and the magnet and the drill tool are magnetically connected, a main shaft is arranged between the chuck and the planetary gear reducer, and one end of the main shaft is drive-connected to the planetary gear reducer, and the other end of the main shaft is assembled with the chuck, a chuck sleeve is mounted on the outside of the chuck, the drill tool passes through the chuck sleeve, and the chuck sleeve is threadedly fixed to the outside of the main shaft.

4. The dual-speed pen-type electric drill according to claim 3, characterized in that: A bit installation groove is arranged between the main shaft and the chuck, and the bit installation groove is formed at one end of the main shaft, and a bit is inserted into the bit installation groove.

5. The dual-speed pen-type electric drill according to claim 1, characterized in that: A motor is arranged inside the pen-shaped electric drill body, and the motor is drivingly connected to the planetary gear reducer. A control panel is electrically arranged on one side of the motor, and the control panel is located inside the pen-shaped electric drill body. A battery is electrically arranged on one side of the control panel, and the battery is vertically located inside the pen-shaped electric drill body, and the battery is electrically connected to the motor through the control panel.

6. The dual-speed pen-type electric drill according to claim 5, characterized in that: A button is arranged outside the pen-shaped electric drill body, and the button and the outer side surface of the pen-shaped electric drill body are in the same vertical plane, and the button is electrically connected to the control panel.

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