CN215847900U

CN215847900U - Straight-handle lithium battery screwdriver with impact function

Info

Publication number: CN215847900U
Application number: CN202120872840.2U
Authority: CN
Inventors: 刘利平
Original assignee: Suzhou Aolaisen Electrical Technology Co ltd
Current assignee: Suzhou Aolaisen Electrical Technology Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-02-18
Anticipated expiration: 2031-04-26

Abstract

The utility model relates to a straight-handle lithium battery screwdriver with an impact function, which comprises a shell, and a motor, a reduction gearbox, an output shaft and an impact mechanism which are respectively arranged in the shell; the top end of the shell is provided with a rotatable front cover; a front shell is arranged in the shell; the side wall of the front shell is provided with an opening; a torsion spring is rotatably arranged on the outer surface of the front shell; one end of the torsion spring is connected with the inner side of the front cover; the front shell is provided with an outer cavity; a plurality of guide grooves along the axis direction are arranged in the outer cavity; the impact mechanism is arranged in the outer cavity; the impact mechanism comprises a bearing, a movable end tooth, a static end tooth and a lifting frame; according to the utility model, the impact mechanism is arranged on the screwdriver, and the dense bevel teeth are arranged on the movable end teeth and the static end teeth, so that the screwdriver can generate high-frequency impact force when in use, and the screwdriver can be quickly and effectively loosened and reset.

Description

Straight-handle lithium battery screwdriver with impact function

Technical Field

The utility model relates to the field of clamping, in particular to a straight-handle lithium battery screwdriver with an impact function.

Background

At present when using the screwdriver to screw up or loosen the screw, because iron fillings, dust or greasy dirt are incomplete to be amassed in the inslot of screw head, make the unable inslot that inserts screw head of tool bit of screwdriver, the screw rusts because of the humidity, cause the screw to be difficult to by the commentaries on classics pine, prior art 201721762507.6, the public impact screwdriver conversion structure, though solved foretell content, nevertheless because the collision portion interval is too big, lead to at the bottom of the frequency of impact, can influence the efficiency of work to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a straight-shank lithium battery screwdriver with an impact function.

In order to achieve the purpose, the utility model adopts the technical scheme that: a straight-handle lithium battery screwdriver with an impact function comprises a shell, and a motor, a reduction box, an output shaft and an impact mechanism which are respectively arranged in the shell; the top end of the shell is provided with a rotatable front cover; the motor, the reduction gearbox and the output shaft are sequentially arranged along the length direction of the shell, and the output shaft penetrates through the front cover; a front shell is arranged in the shell; the side wall of the front shell is provided with an opening; a torsion spring is rotatably arranged on the outer surface of the front shell; one end of the torsion spring is connected with the inner side of the front cover; the front shell is provided with an outer cavity; a plurality of guide grooves along the axis direction are arranged in the outer cavity; the impact mechanism is arranged in the outer cavity; the impact mechanism comprises a bearing, a movable end tooth, a static end tooth and a lifting frame; the bearing, the movable end tooth, the static end tooth and the lifting frame are sequentially sleeved on the output shaft from outside to inside in the outer cavity; the bearing and the movable end teeth are fixed on the output shaft; a pressure spring is arranged between the bearing and the static end tooth; the static end teeth can move along an axis; the lifting frame can rotate; a plurality of bevel teeth which are uniformly distributed along the circumference are arranged at the meshing part of the movable end tooth and the static end tooth; a plurality of convex blocks are arranged on one surface of the static end tooth close to the lifting frame; one surface of the lifting frame, which is close to the static lifting end teeth, is provided with a plurality of grooves meshed with the convex blocks; the contact surfaces of the convex blocks and the grooves are all mutually attached inclined surfaces; the static end teeth are provided with sliding blocks positioned in the guide grooves; the sliding block can move along the guide groove; the lifting frame is provided with a driving block penetrating through the opening; the driving block is connected with the other end of the torsion spring.

Preferably, a pressure plate for preventing the output shaft from separating from the front housing is arranged on the front housing, and the output shaft penetrates through the pressure plate.

Preferably, an inner cavity is arranged on the front shell; the front end of the motor is placed in the inner cavity.

Preferably, a main board is arranged in the casing.

Preferably, a lithium battery for supplying power to the motor is arranged in the casing; the lithium battery mainboard is electrically connected.

Preferably, a starting button for starting the motor is arranged outside the casing; the start button is electrically connected with the main board.

Preferably, a forward and reverse rotation button for controlling the forward and reverse rotation of the motor is arranged outside the shell; the positive and negative rotation button is electrically connected with the main board.

Preferably, a charging port is arranged at the bottom of the machine shell and electrically connected with the main board.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the utility model, the impact mechanism is arranged on the screwdriver, and the dense bevel teeth are arranged on the movable end teeth and the static end teeth, so that the screwdriver can generate high-frequency impact force when in use, the screw can be quickly and effectively loosened and reset, and the working efficiency is improved.

Drawings

The technical scheme of the utility model is further explained by combining the accompanying drawings as follows:

fig. 1 is a schematic general structural diagram of a straight-shank lithium battery screwdriver with an impact function according to the utility model;

FIG. 2 is a schematic structural diagram of an impact mechanism of the straight-shank lithium battery screwdriver with impact function according to the utility model;

FIG. 3 is a schematic structural diagram of a front shell of the straight shank lithium battery screwdriver with the impact function, which is disclosed by the utility model;

fig. 4 is a partially enlarged general structural schematic diagram of a straight shank lithium battery screwdriver with an impact function shown in fig. 1 at a position a;

FIG. 5 is a partially enlarged schematic view of the straight shank lithium battery screwdriver with impact function according to the present invention in an impact state;

FIG. 6 is a schematic structural diagram of the front side of a static end tooth of a straight-shank lithium battery screwdriver with an impact function, provided by the utility model;

fig. 7 is a schematic structural view of the reverse side of the static end teeth of the straight shank lithium battery screwdriver with the impact function.

Wherein: 1. a housing; 2. a motor; 3. a reduction gearbox; 4. an output shaft; 5. a front cover; 6. a front housing; 7. an opening; 8. a torsion spring; 9. an outer cavity; 10. a guide groove; 11. A bearing; 12. a movable end tooth; 13. a stationary end tooth; 14. a hoisting frame; 15. a pressure spring; 16. Bevel teeth; 17. a raised block; 18. a groove; 19. a slider; 20; a drive block; 21. Pressing a plate; 22. an inner cavity; 23. a main board; 24. a lithium battery; 25. a start button; 26. a forward and reverse rotation button; 27. a charging port.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments.

Fig. 1-7 show a straight-shank lithium battery screwdriver with impact function, which comprises a casing 1, a motor 2, a reduction gearbox 3, an output shaft 4 and an impact mechanism, wherein the motor 2, the reduction gearbox 3, the output shaft 4 and the impact mechanism are respectively arranged in the casing 1; a rotatable front cover 5 is arranged at the top end of the machine shell 1; the motor 2, the reduction gearbox 3 and the output shaft 4 are sequentially arranged along the length direction of the machine shell 1, and the output shaft 4 penetrates through the front cover 5; a front shell 6 is arranged in the machine shell 1; the side wall of the front shell 6 is provided with an opening 7; a torsion spring 8 is rotatably arranged on the outer surface of the front shell 6; one end of the torsion spring 8 is connected with the inner side of the front cover 5; an outer cavity 9 is arranged on the front shell 6; a plurality of guide grooves 10 along the axial direction are arranged in the outer cavity 9; the impact mechanism is arranged in the outer cavity 9; the impact mechanism comprises a bearing 11, a movable end tooth 12, a fixed end tooth 13 and a lifting frame 14; the bearing 11, the movable end tooth 12, the fixed end tooth 13 and the lifting frame 14 are sequentially sleeved on the output shaft 4 from outside to inside in the outer cavity 9; the bearing 11 and the movable end teeth 12 are fixed on the output shaft 4; a pressure spring 15 is arranged between the bearing 11 and the fixed end tooth 13; the static end teeth 13 can move along the axis; the lifting frame 14 can rotate; a plurality of inclined plane teeth 16 which are uniformly distributed along the circumference are arranged at the meshing part of the movable end tooth 12 and the fixed end tooth 13; one surface of the static end tooth 13 close to the lifting frame 14 is provided with a plurality of convex blocks 17; one surface of the lifting frame 14 close to the static lifting end teeth 13 is provided with a plurality of grooves 18 engaged with the convex blocks 17; the contact surfaces of the convex blocks 17 and the grooves 18 are all mutually attached inclined surfaces; a sliding block 19 positioned in the guide groove 10 is arranged on the static end tooth 13; the sliding block 19 can move along the guide groove 10; the lifting frame 14 is provided with a driving block 20 which passes through the opening 7; the driving block 20 is connected with the other end of the torsion spring 8.

Further, a pressing plate 21 for preventing the output shaft 4 from being separated from the front housing 6 is provided on the front housing 6, and the output shaft 4 passes through the pressing plate 21.

Further, an inner cavity 22 is arranged on the front shell 6; the front end of the motor 2 is placed in the inner cavity 22 to fix the motor 2, so that vibration caused by the motor 2 is reduced.

Further, a main board 23 is disposed in the housing 1, and is used for receiving and feeding back signals of the modules.

Further, a lithium battery 24 for supplying power to the motor 2 is arranged in the casing 1; the lithium battery 24 is electrically connected with the main board 23, so that the screwdriver can still be practical under the condition of the object charging equipment.

Further, a start button 25 for starting the motor 2 is arranged outside the casing 1; the start button 25 is electrically connected with the main board 23 and controls the start and stop of the motor 2.

Further, a forward and reverse rotation button 26 for controlling the forward and reverse rotation of the motor 2 is arranged outside the casing 1; the forward and reverse rotation button 26 is electrically connected with the main board 23 and controls the forward and reverse rotation of the motor 2.

Further, a charging port 27 is arranged at the bottom of the casing 1, and the charging port 27 is electrically connected with the main board 23 and is used for charging the lithium battery 24, so that the screwdriver can still work by plugging in electricity when the battery power is insufficient.

When in use: according to the requirement, a corresponding screwdriver is selected, the screwdriver is inserted into a notch at the top end of an output shaft 4 and is aligned with a screw piece to be fixed or taken down, if the impact function is not needed, a start button 25 on a shell 1 is only needed to be started, whether a forward and reverse switch is adjusted to rotate reversely or rotate forwardly is judged according to actual conditions, a main board 23 feeds a signal back to a motor 2, the motor 2 starts to work after receiving the signal, the output shaft 4 is driven to rotate through the conversion of a reduction gearbox 3, the screwdriver rotates along with the rotation to fix or take down the screw piece, if the impact function is needed, a front cover 5 needs to be rotated first to drive a torsion spring 8 to rotate, the torsion spring 8 drives a driving block 20 connected to a lifting frame 14 to rotate, meanwhile, the lifting frame 14 also rotates along with the rotation, the lifting frame 14 can only move in a guide groove 10 through a convex block 17, a groove 18 and a sliding block 19, so that a static end tooth 13 is pushed towards a dynamic end tooth 12, make movable end tooth 12 and quiet end tooth 13 laminate each other, then start the start button 25 on the casing 1, judge whether to reverse the switch adjustment reversal of just reversing or the corotation according to actual conditions, mainboard 23 feeds back the signal to motor 2, motor 2 begins work after receiving the signal, it is rotatory to drive output shaft 4 through the conversion of reducing gear box 3, movable end tooth 12 can be rotatory along with output shaft 4, produce forward impact force through bevel tooth 16 and drive output shaft 4 and move forward, through the pressure of hand to the screwdriver, make the output shaft 4 after the impact reset fast, it is reciprocal so until the screw spare is fixed or take off.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a take impact function's straight handle lithium electricity screwdriver which characterized in that: comprises a shell, a motor, a reduction box, an output shaft and an impact mechanism which are respectively arranged in the shell; the top end of the shell is provided with a rotatable front cover; the motor, the reduction gearbox and the output shaft are sequentially arranged along the length direction of the shell, and the output shaft penetrates through the front cover; a front shell is arranged in the shell; the side wall of the front shell is provided with an opening; a torsion spring is rotatably arranged on the outer surface of the front shell; one end of the torsion spring is connected with the inner side of the front cover; the front shell is provided with an outer cavity; a plurality of guide grooves along the axis direction are arranged in the outer cavity; the impact mechanism is arranged in the outer cavity; the impact mechanism comprises a bearing, a movable end tooth, a static end tooth and a lifting frame; the bearing, the movable end tooth, the static end tooth and the lifting frame are sequentially sleeved on the output shaft from outside to inside in the outer cavity; the bearing and the movable end teeth are fixed on the output shaft; a pressure spring is arranged between the bearing and the static end tooth; the static end teeth can move along an axis; the lifting frame can rotate; a plurality of bevel teeth which are uniformly distributed along the circumference are arranged at the meshing part of the movable end tooth and the static end tooth; a plurality of convex blocks are arranged on one surface of the static end tooth close to the lifting frame; one surface of the lifting frame, which is close to the static end teeth, is provided with a plurality of grooves which can be meshed with the convex blocks; the contact surfaces of the convex blocks and the grooves are all mutually attached inclined surfaces; the static end teeth are provided with sliding blocks positioned in the guide grooves; the sliding block can move along the guide groove; the lifting frame is provided with a driving block penetrating through the opening; the driving block is connected with the other end of the torsion spring.

2. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: the front shell is provided with a pressing plate for preventing the output shaft from separating from the front shell, and the output shaft penetrates through the pressing plate.

3. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: an inner cavity is arranged on the front shell; the front end of the motor is placed in the inner cavity.

4. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: a main board used for controlling the motor is arranged in the shell.

5. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: a lithium battery for supplying power to the motor is arranged in the shell; the lithium battery is electrically connected with the main board.

6. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: a starting button for starting the motor is arranged outside the shell; the start button is electrically connected with the main board.

7. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: a forward and reverse button for controlling the forward and reverse rotation of the motor is arranged outside the shell; the positive and negative rotation button is electrically connected with the main board.

8. The straight shank lithium battery screwdriver with impact function according to claim 1, wherein: the bottom of the machine shell is provided with a charging port, and the charging port is electrically connected with the main board.