CN217370585U - Lithium electric drill - Google Patents

Abstract

The utility model discloses a lithium electric drill, including the electric drill main part, set up the clamping part in the main part, the clamping part rotates and sets up in the main part set up first axis of rotation and second axis of rotation in the main part, the clamping part is connected with second axis of rotation one end the second axis of rotation other end sets up the axle sleeve, second axis of rotation and axle sleeve swing joint be in the main part, work as when the axle sleeve slides to first axis of rotation, first axis of rotation and second axis of rotation keep synchronous. Through the separately setting of first axis of rotation and second axis of rotation, only the electric drill is pressing the during operation on the article, and the clamping part drives the drill bit and rotates, and under non-operating environment, the clamping part still can not rotate after the switch is touched in the mistake, and the security is higher, cooperates square groove and stopper simultaneously, further can lock the second axis of rotation under the non-operating condition, is convenient for change the drill bit.

Description

Lithium electric drill

Technical Field

The utility model belongs to the technical field of the electric drill technique and specifically relates to a lithium electric drill.

Background

The electric drill is the most commonly used electric tool for people, has the advantages of convenience, low price, portability and the like, and is well received by workers in the industries of hardware and decoration. However, the drill bit of the electric drill is frequently required to be replaced when the electric drill is used by an operator, because the operator needs to replace the drill bit directly under the condition that the electric drill is not powered off due to convenience of greedy, and the drill bit is very dangerous if the operator or others mistakenly touch the switch to drive the drill bit when the drill bit is replaced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lithium electric drill to not enough among the prior art.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a lithium electric drill includes the electric drill main part, set up the clamping part in the main part, the clamping part rotates and sets up in the main part set up first axis of rotation and second axis of rotation in the main part, the clamping part is connected with second axis of rotation one end the second axis of rotation other end sets up the axle sleeve, second axis of rotation and axle sleeve swing joint are in the main part, work as when the axle sleeve slides to first axis of rotation, first axis of rotation and second axis of rotation keep in step.

In the above aspect, preferably, the first rotating shaft is provided with an external spline, the inner side of the shaft sleeve is provided with an internal spline, and the external shape of the internal spline matches the external spline.

In the above aspect, it is preferable that the main body includes a housing, and the second rotating shaft is coupled to the housing through a bearing.

In the foregoing aspect, preferably, the bearing includes a first wall, a second wall, and a ball, the first wall is connected to the first rotating shaft, the second wall is provided with a slider, the slider is slidably connected to the slide of the housing, and the ball is disposed between the first wall and the second wall.

In the foregoing aspect, it is preferable that the main body includes a housing, and a slider is disposed on the second wall, and the slider is connected to the main body through an elastic member.

In the above scheme, preferably, a square groove is formed in the housing, a limit block is arranged on the sliding block, and when the limit block is located in the square groove, the first rotating shaft cannot rotate.

In the above aspect, it is preferable that a rotating motor is provided in the housing, and the rotating motor is connected to the first rotating shaft.

In the above scheme, preferably, a switch for controlling the start and stop of the rotating motor is arranged on the housing.

In the above aspect, it is preferable that a lithium battery for supplying power is provided in the case.

The utility model has the advantages that: through the separately setting of first axis of rotation and second axis of rotation, only the electric drill is pressing the during operation on the article, and the clamping part drives the drill bit and rotates, and under non-operating environment, the clamping part still can not rotate after the switch is touched in the mistake, and the security is higher, cooperates square groove and stopper simultaneously, further can lock the second axis of rotation under the non-operating condition, is convenient for change the drill bit.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an internal structure diagram of the present invention.

Fig. 3 is an enlarged view of fig. 2 at a.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 3, which include a drill body 1, a holder 2 is provided on the drill body 1, and the holder 2 is used to hold a drill bit, and in the prior art, the structure of the holder 2 should be well known to those skilled in the art, so that the holder 2 is connected to the drill body 1 through a second rotation shaft 4.

The main part 1 includes the shell 8, including all inner structure of a plurality of electric drills in the shell 8, set up rotation motor 16 in the shell 8, rotation motor 16 is connected with first axis of rotation 3, see fig. 2, rotation motor 16 sets up the center department on shell 8 upper portion, first axis of rotation 3 is just the output shaft of rotation motor 16, when rotation motor 16 starts, first axis of rotation 3 just realizes rotating.

The utility model discloses a lithium battery, including shell 8, switch 17, lithium battery 18, switch 17 and rotating motor 16, shell 8 middle part is handheld portion set up switch 17 on handheld portion, switch 17 control rotates opening and stopping of motor 16 the 8 bottoms of shell set up lithium cell 18, be electric connection between lithium cell 18, switch 17 and the rotating motor 16, realize promptly and work as switch 17 is pressed the back, lithium cell 18 supplies power for rotating motor 16, first axis of rotation 3 begins to rotate.

The switch 17 is preferably arranged in the housing 8 through a return spring 19, i.e. the switch 17 is pressed to start the rotation motor 16, and similarly, after the pressed external force disappears, the switch 17 is restored under the action of the return spring 19, i.e. the first rotation shaft 3 is not rotated any more.

Referring to fig. 3, an external spline 6 is disposed on the first rotating shaft 3, a sleeve 5 is disposed on the second rotating shaft 4, and an internal spline 7 is disposed inside the sleeve 5, so that when the sleeve 5 is located on the first rotating member, a spline connection is achieved between the first rotating shaft 3 and the second rotating shaft 4, that is, the first rotating shaft 3 can drive the second rotating shaft 4 to rotate synchronously.

The second rotating shaft 4 is disposed on the housing 8 through a bearing, and further, the bearing includes a first wall 10, a second wall 11 and balls 12, and the balls 12 are disposed between the first wall 10 and the second wall 11, that is, a relative movement between the first wall 10 and the second wall 11 can be realized.

Specifically, the first wall 10 is connected to the first rotating shaft 3, the second wall 11 slides in the housing 8, and the second rotating shaft 4 can be simultaneously slidably and rotatably disposed in the housing 8, and preferably, the second rotating shaft 4 slides in the housing 8 through a slider 13.

The bearing and the shape are annular, so that the shape of the sliding block 13 is also annular, a group of elastic pieces 9 is arranged between the sliding block 13 and the shell 8, the diameter of each elastic piece 9 is between two groups of diameters of the annular sliding block 13, namely one end of each elastic piece 9 is fixed on the sliding block 13, the other end of each elastic piece 9 is fixed on the shell 8, each elastic piece 9 is in contact with the first wall 10, and when the drill bit is pressed on an object to be rotated, the clamping part 2 overcomes the elastic pieces 9 to move towards the side of the second rotating shaft 4.

When changing the drill bit, current clamping part 2 often needs fixed clamping part 2 on one hand, and the tight mouth that presss from both sides of another hand control clamping part 2 contracts and realizes taking to the drill bit, changes the problem to further solving at above-mentioned scheme set up stopper 15 on the inside second axis of rotation 4 of shell 8 set up square groove 14 on the shell 8, stopper 15's appearance also matches square groove 14, works as when stopper 15 is located square groove 14, second axis of rotation 4 then can't rotate, conveniently changes the drill bit.

The working principle is as follows: when the drill bit props against an object to be drilled, the reset spring 19 can be overcome in advance to press the switch 17, the rotating motor 16 is started, so that the first rotating shaft 3 and the external spline 6 rotate simultaneously to prop against the object to move towards the clamping part 2 and the drill bit synchronously against the second rotating shaft 4 of the elastic part 9, namely the sliding block 13 moves in the slideway, firstly, the limiting block 15 firstly releases the limiting of the second rotating shaft 4 on the outer side of the square groove 14, then, the sliding block is in spline connection with the first rotating shaft 3 to realize the synchronous rotation of the second rotating shaft 4 and the first rotating shaft 3, and the second rotating shaft 4 rotates in the second wall 11 of the bearing, so that the object to be drilled can work; when the drill bit is not supporting the object, no matter press not push switch 17, second axis of rotation 4 just can not drive clamping part 2 and drill bit and rotate, slightly rotates second axis of rotation 4 this moment under the effect of elastic component 9, stopper 15 is gone into fast in the square groove 14, second axis of rotation 4 is spacing, and it is more convenient also safer to change the drill bit this moment.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. The utility model provides a lithium electric drill, includes the electric drill main part, set up clamping part in the main part, its characterized in that: the clamping part rotates and sets up in the main part set up first axis of rotation and second axis of rotation in the main part, the clamping part is connected with second axis of rotation one end the second axis of rotation other end sets up the axle sleeve, second axis of rotation and axle sleeve swing joint are in the main part, work as when the axle sleeve slides to first axis of rotation, first axis of rotation and second axis of rotation keep synchronous.

2. A lithium electric drill according to claim 1, characterized in that: the first rotating shaft is provided with an external spline, the inner side of the shaft sleeve is provided with an internal spline, and the external shape of the internal spline is matched with that of the external spline.

3. A lithium electric drill according to claim 2, characterized in that: the main body includes a housing, and the second rotating shaft is coupled in the housing through a bearing.

4. A lithium electric drill according to claim 3, characterized in that: the bearing comprises a first wall, a second wall and balls, the first wall is connected with the first rotating shaft, a sliding block is arranged on the second wall, the sliding block is connected in a sliding way of the shell in a sliding mode, and the balls are arranged between the first wall and the second wall.

5. A lithium electric drill according to claim 4, characterized in that: and a sliding block is arranged on the second wall and is connected with the main body through an elastic piece.

6. A lithium electric drill according to claim 5, characterized in that: the shell is internally provided with a square groove, the sliding block is provided with a limiting block, and when the limiting block is positioned in the square groove, the first rotating shaft cannot rotate.

7. A lithium electric drill according to claim 6, characterized in that: a rotating motor is arranged in the housing and connected with the first rotating shaft.

8. A lithium electric drill according to claim 7, characterized in that: and a switch for controlling the starting and stopping of the rotating motor is arranged on the shell.

9. A lithium electric drill according to claim 8, characterized in that: and a lithium battery for supplying power is arranged on the shell.

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