CN215433443U

CN215433443U - Electric wrench capable of reversely rotating slowly

Info

Publication number: CN215433443U
Application number: CN202120974839.0U
Authority: CN
Inventors: 王亮
Original assignee: Zhejiang Liangye Group Co ltd
Current assignee: Zhejiang Liangye Group Co ltd
Priority date: 2021-05-09
Filing date: 2021-05-09
Publication date: 2022-01-07
Anticipated expiration: 2031-05-09

Abstract

The utility model discloses a reverse slow-turning electric wrench, which comprises a shell, wherein a handle capable of being held by hand is installed at the bottom of the shell, a base is fixed at the bottom of the handle, a rotating shaft is rotatably installed in the shell, an installing head for installing a wrench is installed at one end of the rotating shaft, which penetrates out of the outer wall of the shell, the reverse slow-turning electric wrench also comprises a driving mechanism for driving the rotating shaft to rotate positively and reversely, a fixed block is fixed on the outer wall of the rotating shaft, which is close to the front end of the shell, and a striking mechanism for indirectly striking the fixed block is also arranged on the driving mechanism. According to the utility model, the knocking mechanism is arranged, when the wrench is used for screwing a fastener which is difficult to screw, the wrench can more easily unscrew the fastener by continuously knocking the knocking force generated by the fixing block, otherwise, when the rotating shaft drives the mounting head and the wrench to rotate forwards, the wrench can screw the fastener to a better degree by knocking the fixing block.

Description

Electric wrench capable of reversely rotating slowly

Technical Field

The utility model relates to the technical field of construction tools, in particular to an electric wrench capable of reversely and slowly rotating.

Background

The electric wrench is a drilling machine using electricity as power, is a conventional product in electric tools, is also an electric tool product with the largest demand, and is generally divided into an electric hand drill, an impact drill and a sleep drill. The electric hand drill is frequently used for drilling in industries such as construction, decoration, home furnishing and the like, and is widely applied due to the characteristics of sensitive operation and convenient carrying.

However, in the process of withdrawing the fastener, if the fastener is connected tightly, the electric wrench cannot drive the fastener to rotate in the rotating process, which may cause the electric wrench to break due to too large resistance, and a more serious person may cause the electric wrench to be damaged.

In view of the above, the present invention provides an electric wrench with reverse slow rotation.

Disclosure of Invention

The utility model aims to provide an electric wrench with slow reverse rotation, which has the effect that when a fastener which is difficult to twist is twisted by the wrench, the wrench can more easily loosen the fastener by continuously beating a fixing block to generate beating force, and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electric spanner that reversal slow turning, includes the shell, the handle that can hand is installed to the bottom of shell, the bottom of handle is fixed with the base, the axis of rotation is installed in the inside rotation of shell, the installation head that can be used to install the spanner is installed to the one end that the shell outer wall was worn out to the axis of rotation.

The rotary shaft fixing device is characterized by further comprising a driving mechanism used for driving the rotary shaft to rotate forwards and backwards, a fixing block is fixed on the outer wall of the rotary shaft close to the front end of the shell, and a beating mechanism used for indirectly beating the fixing block is further arranged on the driving mechanism.

The outer wall of the handle is provided with a driving switch for opening and closing the driving mechanism, and the outer wall of the handle is also provided with an adjusting switch for adjusting the driving mechanism to rotate forwards or backwards.

Preferably, the driving mechanism comprises a driving motor, the driving motor is fixedly installed inside the housing, and an output shaft of the driving motor is fixedly connected with one end, far away from the mounting head, of the rotating shaft through a speed reducer.

Preferably, beat the mechanism and include the spring, the spring housing is established at the outer wall of axis of rotation, and the one end of axis of rotation is fixed on the reduction gear, the one end that the spring is close to the fixed block is fixed with the rotating tube, and the rotating tube cover is established in the outer lane of axis of rotation, the outer wall that the rotating tube is close to the fixed block is fixed with the piece of beating, beat piece and fixed block indirect contact, the outer wall of rotating tube is provided with round magnet, hall sensor is still installed to the interior bottom that the shell is close to the rotating tube, and is connected between hall sensor and the driving motor electricity.

Preferably, a storage battery for supplying power to the driving mechanism is installed inside the base.

Preferably, the outer wall of the handle is provided with anti-skid marks.

Preferably, the side wall of the base is fixed with a hanging buckle.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the arrangement of the knocking mechanism, the effect that the wrench can more easily unscrew the fastener by continuously knocking the fixing block when the wrench screws the fastener which is difficult to screw is achieved, and on the contrary, when the rotating shaft drives the mounting head and the wrench to rotate forwards, the wrench can screw the fastener to a better degree by knocking the fixing block.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention with the outer shell removed and viewed obliquely from the left;

FIG. 3 is a schematic perspective view of the present invention with the outer shell removed and viewed obliquely from the right;

fig. 4 is a schematic perspective view of the present invention with the outer shell and the rotating tube removed.

In the figure: 1. a housing; 2. a handle; 3. a base; 4. hanging and buckling; 5. a mounting head; 6. a drive motor; 7. a speed reducer; 8. a spring; 9. knocking the block; 10. a Hall sensor; 11. a drive switch; 12. an adjustment switch; 13. a fixed block; 14. rotating the tube; 15. and rotating the shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a reversible slow-turning electric wrench comprises a shell 1, a handle 2 capable of being held by hand is installed at the bottom of the shell 1, a base 3 is fixed at the bottom of the handle 2, a rotating shaft 15 is installed in the shell 1 in a rotating mode, and an installing head 5 capable of being used for installing the wrench is installed at one end, penetrating out of the outer wall of the shell 1, of the rotating shaft 15.

The device also comprises a driving mechanism for driving the rotating shaft 15 to rotate forwards and backwards, a fixed block 13 is fixed on the outer wall of the rotating shaft 15 close to the front end of the shell 1, and a beating mechanism for indirectly beating the fixed block 13 is further arranged on the driving mechanism.

The outer wall of the handle 2 is provided with a driving switch 11 for turning on and off the driving mechanism, and the outer wall of the handle 2 is also provided with an adjusting switch 12 for adjusting the forward rotation or the reverse rotation of the driving mechanism.

Can open actuating mechanism through drive switch 11 and drive axis of rotation 15 and rotate, and adjust actuating mechanism corotation or reversal through regulating switch 12, can install the spanner of different models through installation head 5, thereby adapt to different service environment, and axis of rotation 15 can drive installation head 5 when rotating and rotate, still drive simultaneously and beat the mechanism and beat fixed block 13 intermittent type nature, thereby make the spanner when twisting the fastener of comparatively difficult twisting, through constantly beating the power of beating that fixed block 13 produced, thereby make the spanner unscrew the fastener more easily, on the contrary, when axis of rotation 15 drives installation head 5 and spanner corotation, can make the spanner screw up the degree better with the fastener through beating fixed block 13.

Further, the driving mechanism comprises a driving motor 6, the driving motor 6 is fixedly installed inside the shell 1, an output shaft of the driving motor 6 is fixedly connected with one end, far away from the installation head 5, of the rotating shaft 15 through a speed reducer 7, the rotating shaft 15 can be driven to rotate through the speed reducer 7 through rotation of the output shaft of the driving motor 6, and meanwhile the driving and beating mechanism is driven to rotate together.

Further, the knocking mechanism comprises a spring 8, the spring 8 is sleeved on the outer wall of the rotating shaft 15, one end of the rotating shaft 15 is fixed on the speed reducer 7, one end of the spring 8, which is close to the fixed block 13, is fixed with a rotating pipe 14, the rotating pipe 14 is sleeved on the outer ring of the rotating shaft 15, the outer wall of the rotating pipe 14, which is close to the fixed block 13, is fixed with a knocking block 9, the knocking block 9 is indirectly contacted with the fixed block 13, the outer wall of the rotating pipe 14 is provided with a circle of magnet, the inner bottom of the shell 1, which is close to the rotating pipe 14, is also provided with a hall sensor 10, the hall sensor 10 is electrically connected with the driving motor 6, when the speed reducer 7 rotates together with the rotating shaft 15, the spring 8 is driven to rotate together, the rotating pipe 14 is driven to rotate, at the moment, the knocking block 9 is contacted with the fixed block 13, when a wrench at the front end of the mounting head 5 encounters large resistance, due to the resistance effect of the fixed block 13 on the knocking block 9, therefore, the spring 8 contracts backwards when rotating, and simultaneously drives the rotating pipe 14 and the knocking block 9 to move backwards, when the knocking block 9 is separated from the fixed block 13, the resistance disappears, the knocking block 9 can rotate and can recover under the elastic force of the spring 8, so that the knocking block 9 recovers after passing through the fixed block 13, and the recovered knocking block 9 can knock the fixed block 13 when contacting the fixed block 13 next time under the rotating action, at the moment, the rotating pipe 14 can move in a reciprocating manner, and further drives the magnet to move in a reciprocating manner, at the moment, under the induction of the hall sensor 10, the driving motor 6 can keep a faster rotating speed until the resistance received by the wrench is not enough to enable the fixed block 13 to play a role in blocking the knocking block 9, at the moment, the hall sensor 10 cannot sense the magnet on the rotating pipe 14 to move in a reciprocating manner, and then the hall sensor 10 can slow down the rotating speed of the driving motor 6, therefore, the fastener can be prevented from directly falling off due to the fact that the rotating speed is high after the fastener is unscrewed by the wrench.

Further, the inside of the base 3 is provided with a storage battery for supplying power to the driving mechanism, the storage battery with larger energy storage capacity can be installed to prolong the service time of the driving motor 6, and meanwhile, a rechargeable storage battery can also be adopted.

Further, the outer wall of the handle 2 is provided with an anti-slip mark, so that the friction of a user can be increased when the user holds the handle 2 through the anti-slip mark, and the user is prevented from slipping off.

Further, the lateral wall of base 3 is fixed with and hangs knot 4, when going out to use or using in the special environment, can hang shell 1 through hanging knot 4, facilitates the use.

The working principle is as follows: when the electric wrench capable of reversely rotating slowly is used, the driving motor 6 can be started through the driving switch 11, the rotating shaft 15 can be driven to rotate through the speed reducer 7, the driving mechanism can be adjusted to rotate forwards or reversely through the adjusting switch 12, and wrenches of different models can be installed through the installation head 5, so that the electric wrench is suitable for different use environments.

When the speed reducer 7 and the rotating shaft 15 rotate together, the spring 8 is driven to rotate, the rotating pipe 14 is driven to rotate simultaneously, the knocking block 9 is in contact with the fixed block 13, when a wrench at the front end of the mounting head 5 encounters large resistance, the fixed block 13 acts on the knocking block 9, so that the spring 8 contracts backwards during rotation, the rotating pipe 14 and the knocking block 9 are driven to move backwards, when the knocking block 9 is separated from the fixed block 13, the resistance disappears, the knocking block 9 can rotate and can recover under the elastic force of the spring 8, so that the knocking block 9 recovers after passing through the fixed block 13, and the recovered knocking block 9 knocks the fixed block 13 when next contacting the fixed block 13 under the action of rotation, the rotating pipe 14 reciprocates at the moment to drive the magnet to reciprocate, and at the moment under the induction of the hall sensor 10, the driving motor 6 can be kept at a faster rotating speed all the time until the resistance received by the wrench is not enough to enable the fixing block 13 to play a role in blocking the knocking block 9, at the moment, the hall sensor 10 cannot sense the magnet on the rotating pipe 14 to do reciprocating motion, and then the hall sensor 10 can slow down the rotating speed of the driving motor 6, so that the fastener can be prevented from directly falling off due to the faster rotating speed after the wrench unscrews the fastener.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electric wrench for reverse slow turning comprising a housing (1), characterized in that: a handhold handle (2) is installed at the bottom of the shell (1), a base (3) is fixed at the bottom of the handle (2), a rotating shaft (15) is rotatably installed inside the shell (1), and an installing head (5) used for installing a wrench is installed at one end of the rotating shaft (15) penetrating through the outer wall of the shell (1);

the device is characterized by further comprising a driving mechanism for driving the rotating shaft (15) to rotate forwards and backwards, a fixed block (13) is fixed on the outer wall of the rotating shaft (15) close to the front end of the shell (1), and a beating mechanism for indirectly beating the fixed block (13) is further arranged on the driving mechanism;

the outer wall of the handle (2) is provided with a driving switch (11) for opening and closing the driving mechanism, and the outer wall of the handle (2) is also provided with an adjusting switch (12) for adjusting the driving mechanism to rotate forwards or backwards.

2. The reversible slow-turning electric wrench as claimed in claim 1, wherein: the driving mechanism comprises a driving motor (6), the driving motor (6) is fixedly installed in the shell (1), and an output shaft of the driving motor (6) is fixedly connected with one end, far away from the mounting head (5), of the rotating shaft (15) through a speed reducer (7).

3. The reversible slow-turning electric wrench as claimed in claim 2, wherein: beat the mechanism and include spring (8), the outer wall at axis of rotation (15) is established to spring (8) cover, and the one end of axis of rotation (15) is fixed on reduction gear (7), the one end that spring (8) are close to fixed block (13) is fixed with rotating-tube (14), and rotating-tube (14) cover establishes the outer lane at axis of rotation (15), the outer wall that rotating-tube (14) are close to fixed block (13) is fixed with strikes piece (9), strike piece (9) and fixed block (13) indirect nature contact, the outer wall of rotating-tube (14) is provided with round magnet, hall sensor (10) are still installed to interior bottom that shell (1) is close to rotating-tube (14), and are connected between hall sensor (10) and driving motor (6) electricity.

4. The reversible slow-turning electric wrench as claimed in claim 1, wherein: and a storage battery for supplying power to the driving mechanism is arranged in the base (3).

5. The reversible slow-turning electric wrench as claimed in claim 1, wherein: the outer wall of the handle (2) is provided with anti-skid marks.

6. The reversible slow-turning electric wrench as claimed in claim 1 or 4, wherein: the side wall of the base (3) is fixed with a hanging buckle (4).