CN216399454U - Electric screwdriver with adjustable torque - Google Patents

Abstract

The utility model discloses an electric screwdriver with adjustable torque, which comprises: the shell, set up lithium cell, circuit board, motor, gear train, adjustment mechanism and the output shaft in the shell, the lithium cell is used for motor and circuit board power supply, and adjustment mechanism is used for adjusting the twisting resistance size, and the shell is equipped with the button of advancing, retreats button, switch button and electric quantity display. This moment of torsion adjustable electric screwdriver through the turning moment cover, can conveniently adjust electric screwdriver's moment of torsion, adapts to the model of more screws, and the people's of being convenient for selection conveniently operates, reduces use cost, improves work efficiency, and the many grades of moments of torsion of torque adjustment knob are adjustable, according to the screw size, by little to big selection suitable moment of torsion, whole electric screwdriver simple structure, convenient operation, the effect of use is better for traditional mode. Wherein, the rear cover and the shell are detachably connected through screws, so that the batteries can be conveniently detached and installed.

Description

Electric screwdriver with adjustable torque

Technical Field

The utility model relates to the technical field of electric screwdrivers, in particular to an electric screwdriver with adjustable torque.

Background

Electric screwdriver carries out the screw and revolves the fixed support equipment of twisting, connects in many places and need use the screw, and the effect of screw fixation is comparatively excellent, need use electric screwdriver to operate when carrying out the screw fixation, and nowadays, electric screwdriver's kind is more and more, and is more complete in function, and along with the continuous development of science and technology, people also are more and more high to electric screwdriver's manufacturing process requirement.

The existing electric screwdriver has certain defects when in use, cannot well adjust the torque when in use, cannot well adapt to screws of more models, reduces the use efficiency, is not beneficial to people, brings certain adverse effects to the use process of people, and provides the electric screwdriver with adjustable torque.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide an electric screwdriver with adjustable torque that solves one or more of the above mentioned problems of the prior art.

An electric screwdriver with adjustable torque according to the present invention comprises: the lithium battery is used for supplying power to the motor and the circuit board, the circuit board is provided with a first light touch switch, a second light touch switch, a third light touch switch and a light emitting tube, the output end of the motor is connected with the gear set, the gear set is connected with the adjusting mechanism, the adjusting mechanism is connected with the output shaft, the adjusting mechanism is used for adjusting the torsion resistance, the shell is provided with an advancing key, a retreating key, a switch key and an electric quantity display, the advancing key corresponds to the first light touch switch, a rubber cover is arranged between the advancing key and the first light touch switch, the retreating key corresponds to the second light touch switch, and a rubber cover is arranged between the retreating key and the second light touch switch, the switch key corresponds to the third tact switch.

In some embodiments, the gear train includes a plurality of intermeshing's gear and locates the gear outside and with the gear outside engaged gear box, the gear box with still be equipped with locking mechanism between the adjustment mechanism, locking mechanism is including being equipped with a plurality of bellied locking rings and a plurality of ball, adjustment mechanism includes moment cover, slip ring, clamping ring, the moment cover with shell rotatable coupling, the slip ring with moment cover joint, axial displacement can be followed to the slip ring, the slip ring with be equipped with a plurality of moment springs between the clamping ring, the clamping ring butt in the ball.

In some embodiments, the slip ring is provided with a plurality of detent projections, and the torque sleeve is provided with a plurality of detent grooves corresponding to the detent projections.

In some embodiments, the gear set housing is connected to the motor housing, and the adjustment mechanism housing is connected to the gear set housing, and the adjustment mechanism housing is provided with a spiral groove, and the sliding ring is disposed in the spiral groove and is movable along the spiral groove.

In some embodiments, the adjusting mechanism housing is further provided with an outward protruding gear piece, the torque sleeve is provided with a plurality of gear grooves, and the gear piece is clamped with the gear grooves.

In some embodiments, the gear set includes three sets of gears, each set of gears includes a gear plate, a main gear disposed at the center of the gear plate, and three sub-gears disposed around the main gear and engaged with the main gear, the output shaft penetrates through the main gear, and the gear box is engaged with the sub-gears.

In some embodiments, the housing end is provided with a charging port.

In some embodiments, the rear end of the housing is provided with a rear cover, which is connected to the housing by screws.

Has the advantages that: the utility model provides a moment of torsion adjustable electric screwdriver, through the turning moment cover, can conveniently adjust electric screwdriver's moment of torsion, adapt to the model of more screws, the people's of being convenient for selection, conveniently operate, use cost is reduced, work efficiency is improved, the many grades of adjustable of moment of torsion of torque adjustment button, according to the screw size, by little to big selection suitable moment of torsion, whole electric screwdriver simple structure, and convenient operation, the effect of use is better for traditional mode. Wherein, the rear cover and the shell are detachably connected through screws, so that the batteries can be conveniently detached and installed.

Drawings

Fig. 1 is a schematic structural view of an adjustable torque electric screwdriver according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a torque adjustable power screwdriver in accordance with an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a torque adjustable power screwdriver in accordance with an embodiment of the present invention;

FIG. 4 is a partial schematic view of a torque adjustable power screwdriver according to an embodiment of the present invention;

FIG. 5 is a partial schematic view of a torque adjustable power screwdriver according to an embodiment of the present invention;

FIG. 6 is a partial schematic view of a torque adjustable power screwdriver according to an embodiment of the present invention;

fig. 7 is a partial schematic structural view of an electric screwdriver with adjustable torque according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1 and 2:

an adjustable torque power screwdriver comprising: shell 10, set up in lithium cell 20, circuit board 30, motor 40, gear train 50, adjustment mechanism 60 and output shaft 70 in the shell 10, lithium cell 20 is used for motor 40 and the power supply of circuit board 30, establish first dabbing switch 31, second dabbing switch 32, third dabbing switch 33 and luminotron 34 on the circuit board 30, the output of motor 40 with gear train 50 is connected, gear train 50 with adjustment mechanism 20 connects, adjustment mechanism 20 with output shaft 30 is connected, adjustment mechanism 20 is used for adjusting the antitorque force size, shell 10 is equipped with the key 11 of advancing, retreats button 12, switch button 13 and electric quantity display 14, advance button 11 with first dabbing switch 31 corresponds just advance button 11 with be equipped with the rubber casing between the first dabbing switch 31, retreat button 12 with second dabbing switch 32 corresponds just retreat button 12 with the second dabbing switch 32 A rubber cover is arranged between the first light-touch switch and the second light-touch switch, the switch key 13 corresponds to the third light-touch switch 33, the circuit display 14 corresponds to the light-emitting tube 34, and the end part of the shell 10 is provided with a charging port 15.

As shown in fig. 3 and 4:

its inner structure, the gear train includes a plurality of intermeshing's gear 51 and locates the gear 51 the outside and with the gear 51 outside engaged gear box 52, gear box 52 with still be equipped with locking mechanism between the adjustment mechanism 60, locking mechanism is including being equipped with a plurality of bellied locking rings 81 and a plurality of ball 82, adjustment mechanism 60 includes moment cover 61, slip ring 62, clamping ring 63, moment cover 61 with shell 10 rotatable coupling, slip ring 62 with moment cover 61 joint, axial displacement can be followed to slip ring 62, slip ring 62 with be equipped with a plurality of moment springs 64 between the clamping ring 63, clamping ring 63 butt in ball 82.

As shown in fig. 5, the sliding ring 62 is provided with a plurality of locking protrusions 65, the torque sleeve 61 is provided with a plurality of locking grooves 611 corresponding to the locking protrusions 65, the adjusting mechanism housing is further provided with outward protruding shift tabs 66, the torque sleeve is provided with a plurality of shift slots 612, and the shift tabs 66 are locked with the shift slots 612.

As shown in fig. 6, the electric vehicle further includes a gear set housing 91 and an adjusting mechanism housing 92, the gear set housing 91 is connected to the motor 40 housing, the adjusting mechanism housing 92 is connected to the gear set housing 91, the adjusting mechanism housing 92 is provided with a spiral groove 93, and the sliding ring 62 is disposed in the spiral groove 93 and can move along the spiral groove 93.

In the embodiment, a user can rotate the torque sleeve to enable the sliding ring to move back and forth along the spiral groove, so that the pressure of the pressing ring on the ball and the locking ring is adjusted through the torque spring, and the purpose of adjusting the size of the torque resistance force is achieved.

As shown in fig. 7, the gear set 50 includes three sets of gears, each set of gears includes a gear plate 53, a main gear 54 disposed at the center of the gear plate, and three sub-gears 55 disposed around the main gear 54 and engaged with the main gear 54, the output shaft is disposed through the main gear 54, and the gear box 52 is engaged with the sub-gears 55.

Wherein, the rear end of the shell 10 is provided with a rear cover, and the rear cover is connected with the shell 10 through a screw.

The electric screwdriver with the adjustable torque, which is disclosed by the embodiment of the application, can conveniently adjust the torque of the electric screwdriver through the rotating torque sleeve, is suitable for models of more screws, is convenient for people to select, is convenient to operate, reduces the use cost, improves the working efficiency, can adjust multiple torque shifts of the torque adjusting knob, selects a proper torque from small to large according to the size of the screw, and is simple in structure, convenient to operate and better in use effect compared with the traditional mode. Wherein, the rear cover and the shell are detachably connected through screws, so that the batteries can be conveniently detached and installed.

The foregoing is only a preferred form of the utility model and it should be noted that several similar variations and modifications could be made by one skilled in the art without departing from the inventive concept and these should also be considered within the scope of the utility model.

Claims (8)

1. An electric screwdriver with adjustable torque, characterized by comprising: the lithium battery is used for supplying power to the motor and the circuit board, the circuit board is provided with a first light touch switch, a second light touch switch, a third light touch switch and a light emitting tube, the output end of the motor is connected with the gear set, the gear set is connected with the adjusting mechanism, the adjusting mechanism is connected with the output shaft, the adjusting mechanism is used for adjusting the torsion resistance, the shell is provided with an advancing key, a retreating key, a switch key and an electric quantity display, the advancing key corresponds to the first light touch switch, a rubber cover is arranged between the advancing key and the first light touch switch, the retreating key corresponds to the second light touch switch, and a rubber cover is arranged between the retreating key and the second light touch switch, the switch key corresponds to the third tact switch.

2. The electric screwdriver with the adjustable torque according to claim 1, wherein the gear set comprises a plurality of gears which are meshed with each other and a gear box which is meshed with the gear outside, a locking mechanism is further arranged between the gear box and the adjusting mechanism, the locking mechanism comprises a plurality of protruding locking rings and a plurality of balls, the adjusting mechanism comprises a torque sleeve, a sliding ring and a pressing ring, the torque sleeve is rotatably connected with the shell, the sliding ring is connected with the torque sleeve in a clamping mode, the sliding ring can move axially, a plurality of torque springs are arranged between the sliding ring and the pressing ring, and the pressing ring abuts against the balls.

3. The screwdriver as claimed in claim 2, wherein the sliding ring has a plurality of protrusions, and the torque sleeve has a plurality of recesses corresponding to the protrusions.

4. The electric screwdriver with adjustable torque as claimed in claim 2, further comprising a gear set housing and an adjusting mechanism housing, wherein the gear set housing is connected with the motor housing, the adjusting mechanism housing is connected with the gear set housing, the adjusting mechanism housing is provided with a spiral groove, and the sliding ring is disposed in the spiral groove and can move along the spiral groove.

5. The screwdriver as claimed in claim 4, wherein the adjusting mechanism housing further comprises an outwardly protruding tab, the torque sleeve further comprises a plurality of slots, and the tab engages with the slot.

6. The electric screwdriver as claimed in claim 2, wherein the gear set comprises three sets of gears, each set of gears comprises a gear plate, a main gear disposed at the center of the gear plate, and three sub-gears disposed around the main gear and engaged with the main gear, the output shaft is disposed through the main gear, and the gear box is engaged with the sub-gears.

7. The adjustable torque power screwdriver as recited in claim 1, wherein said housing end is provided with a charging port.

8. The torque adjustable electric screwdriver as claimed in claim 1, wherein a rear cover is provided at a rear end of the housing, and the rear cover is connected to the housing by a screw.

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