CN212919153U

CN212919153U - Electric screwdriver

Info

Publication number: CN212919153U
Application number: CN202021244453.6U
Authority: CN
Inventors: 陈会甫; 闵新林
Original assignee: Ningbo Hanpu Tools Co ltd
Current assignee: Ningbo Hanpu Tools Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-09
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a handheld electric tool technical field discloses an electric screwdriver, including: the battery pack comprises a shell, wherein a mounting cavity and a battery accommodating cavity are formed in the shell; the power device comprises a battery, a motor and a speed reducing mechanism; the battery is arranged in the battery accommodating cavity; the motor and the speed reducing mechanism are arranged in the mounting cavity, and a starting switch for starting the motor is arranged on the shell; the speed reducing mechanism is connected with the motor, and a power output shaft connected with the speed reducing mechanism is arranged at the front end of the shell; the working head is arranged at the front end of the shell and is connected with the power output shaft; the adjusting part is arranged at the tail end of the shell and can adjust the positive and negative rotation and/or the torsion of the motor. The utility model has the advantages that the electric screwdriver arranges the positive and negative rotation of the motor and the torsion strength adjusting switch at the tail part of the shell, and the adjustment is convenient; and the shell is simple and convenient to produce and assemble.

Description

Electric screwdriver

Technical Field

The utility model relates to a handheld electric tool technical field especially relates to an electric screwdriver.

Background

Bolt and bolted connection are everywhere visible in the life, and in the maintenance, the screwdriver is often used to various things of dismouting, and electric screwdriver (electric screwdriver promptly) compares in manual screwdriver and has the advantage that the dismouting is efficient, the dismouting is simple, use manpower sparingly, and electric screwdriver's function is also more and more diversified, however, current electric screwdriver ubiquitous uses, adjusts inconveniently, and electric screwdriver itself assembles and dismantles inconvenient problem.

For example, the publication number "CN 209256801U" discloses an integrated electric screwdriver with a built-in reversing mechanism, which comprises a hollow cylindrical screwdriver shell and a screwdriver handle arranged at the lower part of the screwdriver shell and connected with the screwdriver shell, wherein the screwdriver shell is transversely arranged, a driving working section, a power providing section B and a reversing mechanism assembly are sequentially arranged in the screwdriver shell from left to right, the driving working section drives a screw to be rotated, the power providing section provides torque required by the driving working section, and the reversing mechanism assembly can change the rotating direction of the power providing section; the screwdriver handle is provided with a control and power supply assembly, and a power supply section arranged in the screwdriver shell is subjected to on-off control and electric energy supply through the assembly; the screwdriver handle is connected to the lower part of one end of the screwdriver shell through a built-in handle connecting screw. The electric screwdriver of the scheme is inconvenient to adjust, and the integrated shell is inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art, the utility model aims to solve the technical problem that, provide a just reversal and torsion size adjust convenient, the simple and convenient electric screwdriver of assembly.

The utility model provides a technical scheme that its technical problem adopted is, provides an electric screwdriver, including:

the battery pack comprises a shell, wherein a mounting cavity and a battery accommodating cavity are formed in the shell;

the power device comprises a battery, a motor and a speed reducing mechanism; the battery is arranged in the battery accommodating cavity; the motor and the speed reducing mechanism are arranged in the mounting cavity, and a starting switch for starting the motor is arranged on the shell; the speed reducing mechanism is connected with the motor, and a power output shaft connected with the speed reducing mechanism is arranged at the front end of the shell;

the working head is arranged at the front end of the shell and is connected with the power output shaft;

the adjusting part is arranged at the tail end of the shell and can adjust the positive and negative rotation and/or the torsion of the motor.

Further, the tail end of the shell is provided with a control plate, and the adjusting part covers the control plate.

Furthermore, the tail end of the shell is provided with at least one positioning lug, the control board is provided with a positioning groove corresponding to the positioning lug, and the positioning lug is arranged in the positioning groove.

Furthermore, a plurality of control units are arranged on the side, close to the adjusting part, of the control board, and a forward rotation key, a reverse rotation key, a torsion adding key and a torsion reducing key are arranged on the adjusting part at positions opposite to the control units.

Furthermore, the forward rotation key, the torsion plus key, the reverse rotation key and the torsion minus key are sequentially arranged along the circumferential direction of the adjusting part.

Furthermore, a flange is arranged at the tail end of the shell, and the adjusting part is sleeved on the flange.

Furthermore, the shell is arranged in a split manner and comprises a top shell, a bottom shell, a front cover and a bottom cover; the front cover is sleeved at the front ends of the top shell and the bottom shell; the adjusting part is sleeved at the tail ends of the top shell and the bottom shell; the bottom of the bottom shell is provided with an opening, the bottom cover is arranged at the opening, and the battery is positioned above the bottom cover.

Furthermore, a plurality of clamping grooves are formed in the bottom shell, a plurality of clamping blocks are arranged on the bottom cover, and the clamping blocks are detachably clamped in the clamping grooves.

Furthermore, a speed-regulating push button for controlling the rotating speed of the motor is arranged on the top shell.

Further, a handheld portion is arranged on the bottom shell, and the starting switch is arranged on the handheld portion.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

in the utility model, the adjusting part is arranged at the tail end of the shell, and the adjusting part can realize the adjustment of positive rotation and negative rotation of the motor, increase torsion and reduce torsion, and the adjustment is very convenient; the top of the shell is also provided with a speed-regulating push button, so that the first gear and the second gear of the rotating speed of the motor are controlled, and the working efficiency of the electric screwdriver is further controlled; complete functions and convenient adjustment. The shell is divided into a split type, the top shell and the bottom shell are assembled to form a general shape, the front ends of the top shell and the bottom shell are fixed by the front cover, the tail ends of the top shell and the bottom shell are fixed by the adjusting part, the fixing effect of the top shell and the bottom shell is ensured, and the shell is easy to form; the bottom of drain pan is provided with the detachable bottom, and the battery setting is on the bottom, easy dismounting, and fixed through buckle and draw-in groove cooperation between bottom and the drain pan, and is fixed effectual.

Drawings

Fig. 1 is a schematic view of the overall structure of the electric screwdriver of the present invention;

FIG. 2 is a schematic structural view of FIG. 1 with the working head and the adjustment section removed;

FIG. 3 is a schematic half-section view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

fig. 5 is an exploded view of the housing and the adjustment portion.

In the figure, the position of the upper end of the main shaft,

1. a housing; 10. a mounting cavity; 11. a top shell; 12. a bottom case; 13. a front cover; 14. a bottom cover; 101. a battery receiving cavity; 110. positioning the bump; 111. a speed-regulating push button; 120. a flange; 121. an opening; 122. a card slot; 123. a hand-held portion; 141. a clamping block;

2. a power plant; 20. a battery; 21. a motor; 22. a speed reduction mechanism; 23. starting a switch; 24. a power take-off shaft; 25. a control panel; 250. positioning a groove; 251. a control unit;

3. a working head;

4. an adjustment section; 40. a forward rotation key; 41. a reverse key; 42. adding a key by torque force; 43. and (5) reducing the torsion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, an electric screwdriver includes: the device comprises a shell 1, a power device 2, a working head 3 and an adjusting part 4.

The battery pack comprises a shell 1, wherein a mounting cavity 10 and a battery accommodating cavity 101 are arranged in the shell 1; specifically, the housing 1 is separately arranged and comprises a top shell 11, a bottom shell 12, a front cover 13 and a bottom cover 14; the top shell 11 and the bottom shell 12 are assembled in a split manner from top to bottom, and the front cover 13 is sleeved at the front ends of the top shell 11 and the bottom shell 12; the adjusting part 4 is sleeved at the tail ends of the top shell 11 and the bottom shell 12; the fixing effect of the top shell 11 and the bottom shell 12 is ensured, the shell 1 is easy to form, and the integral shell is difficult to form; the bottom of the bottom case 12 has an opening 121, the bottom cover 14 is disposed at the opening 121, and the battery 20 is disposed above the bottom cover 14, so that the bottom case is easy to assemble and disassemble. The bottom cover 12 is provided with a plurality of slots 122, the bottom cover 14 is provided with a plurality of clamping blocks 141, and the clamping blocks 141 are detachably clamped in the slots 122, so that the fixing effect is good.

A power unit 2 including a battery 20, a motor 21, and a reduction mechanism 22; the battery 20 is disposed in the battery receiving cavity 101; the motor 21 and the speed reducing mechanism 22 are arranged in the mounting cavity 10, and a starting switch 23 for starting the motor 21 is arranged on the shell 1; specifically, the bottom shell 12 is provided with a handheld portion 123, and the starting switch 23 is arranged on the handheld portion 123 to facilitate the operation of the electric screwdriver with one hand; the speed reducing mechanism 22 is connected with the motor 21, and a power output shaft 24 connected with the speed reducing mechanism 22 is arranged at the front end of the shell 1; the speed reducing mechanism 22 is a planetary speed reducing gear train, reduces the revolution number of the motor 21 to a required revolution number, obtains larger torque and has stable transmission;

the working head 3 is arranged at the front end of the shell 1 and is connected with the power output shaft 24; the working head 3 is directly contacted with the bolt or the screw to loosen or tighten the bolt or the screw;

the adjusting part 4 is arranged at the tail end of the shell 1 and can adjust the positive and negative rotation and/or the torsion of the motor 21; specifically, the tail end of the housing 1 is provided with a flange 120, and the adjusting portion 4 is sleeved on the flange 120 and is not easy to loose.

In the using process, the adjusting part 4 is arranged at the tail end of the shell 1, and the adjusting part 4 can realize the adjustment of positive rotation, negative rotation, torsion increasing and torsion reducing of the motor 21, so that the adjustment is very convenient; and the top of the shell 1 is also provided with a speed-regulating push button 111, so that the first gear and the second gear of the rotating speed of the motor are controlled, and when the rotating speed is the second gear, the rotating speed of the motor 21 is twice of that of the first gear, so that the working efficiency of the electric screwdriver is improved, the functions are complete, and the adjustment is convenient.

Preferably, a control board 25 is arranged at the tail end of the housing 1, and the adjusting part 4 covers the control board 25; the tail end of the shell 1 is provided with at least one positioning lug 110, the control panel 25 is provided with a positioning groove 250 corresponding to the positioning lug 110, the positioning lug 110 is arranged in the positioning groove 250, the positioning groove 250 and the positioning lug 110 are matched to prevent the control panel 25 from rotating or shifting in the using process, and the keys on the adjusting part 4 and the corresponding control units 251 can be in one-to-one correspondence. Specifically, the control board 25 is provided with a plurality of control units 251 near the adjusting part 4, and the adjusting part 4 is provided with a forward rotation key 40, a reverse rotation key 41, a torsion adding key 42 and a torsion reducing key 43 at positions opposite to the control units 251; and the forward rotation key 40, the torsion plus key 42, the reverse rotation key 41 and the torsion minus key 43 are sequentially arranged along the circumferential direction of the adjusting part 4, so that the manual adjustment is facilitated.

In the scheme, the electric screwdriver has the advantages that the positive and negative rotation and torsion strength adjusting switches of the motor are arranged at the tail part of the shell, so that the electric screwdriver is convenient to adjust; and the shell is simple and convenient to produce and assemble.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An electric screwdriver, characterized by, including:

2. The electric screwdriver as claimed in claim 1, wherein a control plate is provided at a rear end of the housing, and the adjusting part is covered on the control plate.

3. The electric screwdriver as claimed in claim 2, wherein the casing has at least one positioning protrusion at the rear end thereof, and the control plate has a positioning groove corresponding to the positioning protrusion, and the positioning protrusion is disposed in the positioning groove.

4. The electric screwdriver as claimed in claim 2 or 3, wherein the control plate is provided with a plurality of control units near the adjusting portion side, and the adjusting portion is provided with a forward rotation key, a reverse rotation key, a torsion plus key and a torsion minus key at positions opposite to the control units.

5. The electric screwdriver as claimed in claim 4, wherein the forward rotation key, the torque adding key, the reverse rotation key and the torque reducing key are sequentially arranged along the circumferential direction of the adjusting part.

6. The electric screwdriver as claimed in claim 2, wherein the rear end of the housing is provided with a flange, and the adjusting portion is sleeved on the flange.

7. The electric screwdriver as claimed in claim 1, wherein the housing is a split structure comprising a top shell, a bottom shell, a front cover and a bottom cover; the front cover is sleeved at the front ends of the top shell and the bottom shell; the adjusting part is sleeved at the tail ends of the top shell and the bottom shell; the bottom of the bottom shell is provided with an opening, the bottom cover is arranged at the opening, and the battery is positioned above the bottom cover.

8. The electric screwdriver as claimed in claim 7, wherein said bottom shell has a plurality of slots, and said bottom cover has a plurality of locking blocks, said locking blocks being detachably locked in said slots.

9. The electric screwdriver as claimed in claim 7, wherein the top shell is provided with a speed-adjusting knob for controlling the rotation speed of the motor.

10. The electric screwdriver as claimed in claim 7, wherein said bottom shell has a hand-held portion thereon, and said actuating switch is disposed on said hand-held portion.