CN218658900U

CN218658900U - Auxiliary handle

Info

Publication number: CN218658900U
Application number: CN202222887724.5U
Authority: CN
Inventors: 彭小湖
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-03-21
Anticipated expiration: 2032-10-29

Abstract

The utility model relates to an auxiliary handle for be connected to and grip with the assistance on an electric tool, electric tool includes along longitudinal extension's main part and the installation department that is located the top of main part, and auxiliary handle connects in the installation department and includes: a clamping part connected to the mounting part and provided with two clamping blocks oppositely arranged in a transverse direction perpendicular to the longitudinal direction; a handle portion connected to the clamping portion; wherein: the clamping part is provided with a first connecting piece extending transversely and a second connecting piece extending vertically and transversely perpendicular to the first connecting piece, the first connecting piece is sleeved with the two clamping blocks and the second connecting piece, the second connecting piece is located between the two clamping blocks transversely, the first connecting piece is provided with a first adapting end for connecting with the handle part, the second connecting piece is provided with a second adapting end for connecting with the handle part, the first adapting end and the second adapting end are arranged at an angle, and the handle part is selectively connected to the first adapting end or the second adapting end. The auxiliary handle can be selectively arranged at different positions according to requirements.

Description

Auxiliary handle

[ technical field ]

The utility model relates to an electric tool's technical field, in particular to an auxiliary handle for electric tool.

[ background art ]

Common electric tools such as electric drills, angle grinders, electric hammers, impact wrenches and the like are often flapped or twisted when the output torque is larger than the torque controlled by a single hand due to the fact that the handles are held by the single hand, and the arms are injured. Therefore, the power tool is usually added with an additional auxiliary handle, and the auxiliary handle is held by the other hand, so that a counteracting moment is added to counteract redundant output torque.

The auxiliary handle of the electric tool commonly available on the market comprises various forms, such as the auxiliary handle is connected to the periphery of the main body part of the electric tool through a ring-shaped fixing piece, and a user can adjust the angle of the auxiliary handle relative to the main handle according to needs when the electric tool is used. However, with the increasingly prominent design trend of tool compactness and miniaturization, the annular fixing piece which needs to additionally occupy the axial size of the electric tool is gradually abandoned, and instead, the electric tool is provided with a reduction gearbox front shell, and an installation part for receiving an auxiliary handle is arranged on the reduction gearbox front shell; thus, the axial dimension is further shortened, and the structure is more compact. However, at the same time, the installation angle of the auxiliary handle is defined to be perpendicular to the plane of the power tool, and when the power tool needs to be used in a narrow space, the auxiliary handle can only be removed and cannot be effectively used.

In view of the above, there is a need for an improved assist handle that overcomes the deficiencies of the prior art.

[ contents of utility model ]

To the deficiency of the prior art, an object of the utility model is to provide an electric tool's auxiliary handle that can multi-angle installation on the basis of guaranteeing the compactedness.

The utility model provides a technical scheme that prior art problem adopted is: an auxiliary handle for attachment to a power tool to assist in gripping, the power tool including a body portion extending in a longitudinal direction and a mounting portion located at a top portion of the body portion, the auxiliary handle being connected to the mounting portion and comprising: a clamping portion connected to the mounting portion and provided with two clamping blocks oppositely arranged in a transverse direction perpendicular to the longitudinal direction; a handle portion connected to the clamping portion; wherein: the tight portion of clamp is equipped with the edge horizontal extension's first connecting piece and edge perpendicular to horizontal vertical extension's second connecting piece, two press from both sides tight piece with the second connecting piece is all overlapped and is located first connecting piece, just the second connecting piece is located two on horizontal press from both sides between the tight piece, first connecting piece is equipped with the confession handle portion connection's first adaptation end, the second connecting piece is equipped with the confession handle portion connection's second adaptation end, first adaptation end with second adaptation end angularly sets up, just handle portion selectively is connected to first adaptation end or second adaptation end.

The further improvement scheme is as follows: the first connecting piece and the second connecting piece are arranged at an included angle of 90 degrees.

The further improvement scheme is as follows: the first connecting piece is provided with a threaded section which is far away from the first adapting end in the transverse direction, the two clamping blocks are respectively provided with a through hole which can correspond to the threaded section, the threaded section penetrates through the through holes of the two clamping blocks, and the through hole of at least one clamping block is provided with an internal thread which is matched with the external thread of the threaded section.

The further improvement scheme is as follows: the first connecting piece is further provided with a limiting section which is arranged close to the first adapting end, and the limiting section is attached to the transverse outer wall of the clamping block so as to limit the transverse displacement of the clamping block.

The further improvement scheme is as follows: the second connecting piece is provided with a sleeving section sleeved on the first connecting piece, the sleeving section is positioned between the two clamping blocks and is provided with a sleeving hole which transversely penetrates through the sleeving section, and the second connecting piece is sleeved on the first connecting piece through the sleeving hole.

The further improvement scheme is as follows: the clamping part further comprises a guide pin extending along the transverse direction, the two clamping blocks and the second connecting piece are respectively provided with an unthreaded hole penetrating along the transverse direction, and the guide pin is contained in the unthreaded holes of the two clamping blocks and the second connecting piece.

The further improvement scheme is as follows: the handle portion is provided with an intermediate portion and a handle portion, wherein one end of the intermediate portion is connected to the clamping portion, the handle portion is connected to the other end of the intermediate portion, and one end of the intermediate portion is selectively connected to the first adapting end or the second adapting end.

The further improvement scheme is as follows: the cross sections of the first adapting end and the second adapting end are both polygonal, the middle part is provided with an inner polygonal hole which is inwards sunken from one end, and the inner polygonal hole is matched with the first adapting end or the second adapting end.

The further improvement scheme is as follows: the first adapting end and the second adapting end are both provided with accommodating grooves which are sunken inwards from the side walls and elastic structures which are at least partially accommodated in the accommodating grooves, the middle part is provided with a limiting hole which penetrates through the side walls and is communicated with the inner polygonal hole, and when the middle part is connected to the first adapting end or the second adapting end, at least part of the elastic structures is clamped in the limiting hole.

The further improvement scheme is as follows: the electric tool comprises a holding part extending downwards from the bottom of the main body part, and the holding part and the main body part are arranged at a certain angle.

Compared with the prior art, the utility model discloses following beneficial effect has: the application provides an auxiliary handle, because the clamping part is equipped with two mutual angulations and sets up and can with auxiliary handle complex adaptation end for auxiliary handle can select to install in the position of difference as required, has compromise electric tool compactness and convenient to use's needs.

[ description of the drawings ]

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a perspective view of an electric tool according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional schematic view of the auxiliary handle of the power tool shown in FIG. 1;

FIG. 3 is an exploded view of the auxiliary handle of FIG. 1

Fig. 4 is a schematic view of the electric power tool shown in fig. 1 in a state where the assist handle is in another mounting position.

The meaning of the reference symbols in the figures:

100. electric drill 1, main body 10, and mounting part

2. Grip portion 3, battery pack receiving portion 4, and battery pack

5. Auxiliary handle 51, clamping block 52, first connecting piece

520. First adapting end 53, second connecting piece 530, second adapting end

522. Threaded section 512, through hole 524 and spacing section

54. Handle part 55, middle part 11 and front shell of reduction gearbox

56. Ball 57, elastic member 532 and socket joint section

5320. Sleeving hole 58, guide pin 551 and sleeve

5510. Limiting hole

[ detailed description of the invention ]

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," and the like, which indicate orientation or positional relationships, are used solely to facilitate the description of the invention and to simplify the description, and do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Referring to fig. 1 and 2, the auxiliary handle 2 of the electric power tool according to the present invention is described as an example of the electric power tool in the present embodiment, but the electric power tool 100 of the present embodiment is not limited to the electric power tool to which the auxiliary handle 2 is applied, as the auxiliary handle 2 may be applied to other tools such as an electric hammer, an impact wrench, and an angle grinder.

As shown in fig. 1 and 4, the electric drill 100 includes a main body 1 extending in a longitudinal direction, a grip 3 extending downward from a bottom of the main body 1 at an angle, and a battery pack receiving portion 3 provided below the grip 3 to detachably receive power supply from the battery pack 4. The main body 1 generally houses a motor connected to the battery pack 4, a transmission structure driven by the motor, and an output shaft that outputs mechanical motion via the transmission structure. In order to solve the problem that an impact structure may be further provided in the main body 1, and a large impact may be generated to an arm holding the grip portion 2 with one hand due to a large longitudinal or circumferential impact force or torsion force generated by the impact structure during the operation, the electric power tool according to the present embodiment further includes an auxiliary handle 5 for connecting to the tool to assist the grip.

The drill 100 further includes a mounting portion 10 at the top of the main body portion 1, and an auxiliary handle 5 is attached to the mounting portion 10. In the embodiment, the transmission structure comprises a reduction gearbox and a gear reduction mechanism positioned in the reduction gearbox, wherein the reduction gearbox comprises a reduction gearbox front shell 11 and a reduction gearbox rear seat, the reduction gearbox rear seat is accommodated in the main body part 1, and the reduction gearbox front shell 11 is fixedly connected to the main body part 1 through screws and forms a seal with the reduction gearbox rear seat. The reduction gearbox front shell 11 is provided with a circumferential limiting structure to prevent the reduction gearbox front shell 11 from rotating relative to the main body part 1. Casing 11 is the aluminium finished piece before the reducing gear box, and the top of casing 11 before the reducing gear box is located to installation department 10 of this application. Of course, in other embodiments, the reduction gearbox front shell 11 may be housed within the main body 1, with the mounting portion 10 being part of the body of the main body 1.

As shown in fig. 1 to 3, the auxiliary handle 5 includes: a clamping portion connected to the mounting portion 10 and provided with two clamping blocks 51 oppositely disposed in a lateral direction perpendicular to the longitudinal direction; a handle portion connected to the clamping portion; the clamping portion is provided with a first connecting piece 52 extending along the transverse direction and a second connecting piece 53 extending along the vertical direction perpendicular to the transverse direction, the two clamping blocks 51 and the second connecting piece 53 are all sleeved on the first connecting piece 52, the second connecting piece 53 is located between the two clamping blocks 51 along the transverse direction, the first connecting piece 52 is provided with a first adapting end 520 for connecting the handle portion, the second connecting piece 53 is provided with a second adapting end 530 for connecting the handle portion, the first adapting end 520 and the second adapting end 530 are arranged at an angle, and the handle portion is selectively connected to the first adapting end 520 or the second adapting end 530.

Since the clamping portion provides two adapting ends which can be matched with the handle portion, the handle portion can be selectively connected with the first adapting end 520 at the first position or connected with the second adapting end 530 at the second position according to the requirements of the working environment, and the requirements of compactness and convenience of use of the electric tool are considered.

Defining the mounting position of the auxiliary handle 5 in fig. 1 as a first position, the first position is perpendicular to the plane in which the drill 100 is generally located, i.e. the auxiliary handle 5 is perpendicular to the grip portion 2, which is the usual mounting orientation of the auxiliary handle 5.

In the present embodiment, the first connecting part 52 and the second connecting part 53 are arranged at an included angle of 90 degrees. In other words, the second mating end 530 is perpendicular to the first mating end 520, and the auxiliary handle 5 is parallel or collinear with the grip portion 2 when the handle portion is mounted at the second mating end 530, as shown in FIG. 4.

With continued reference to fig. 2 and 3, the first connecting member 52 is provided with a threaded section 522 laterally far away from the first adapting end 520, the two clamping blocks 51 are each provided with a through hole 512 capable of corresponding to the threaded section 522, the threaded section 522 is arranged through the through holes 512 of the two clamping blocks 51, and at least one through hole 512 of the clamping block 51 is provided with an internal thread for matching with an external thread of the threaded section 522. The first connecting member 52 is connected to the clamping blocks 51 by screw-fitting, and in this embodiment, in the two clamping blocks 51, a part is a unthreaded hole and a part is provided with an internal thread, and the two clamping blocks 51 have the same structure, so as to avoid the trouble of identifying the left and right clamping blocks 51. Certainly, the through hole of one of the clamping blocks 51 may be an all-optical hole, and the clamping block 51 is quickly sleeved on the first connecting member 52 through the optical hole, and only the threaded connection process of the other clamping block 51 needs to be completed, so that time is saved and the working efficiency is improved.

The first connecting member 52 is further provided with a limiting section 524 disposed adjacent to the first adapting end 520, and the limiting section 524 abuts against the lateral outer wall of the clamping block 51 to limit the lateral displacement of the clamping block 51. Because the through hole of the clamping block 51 is partially a smooth hole, and the first connecting member 52 only has a partial threaded section, and the other part is a smooth section, the arrangement of the limiting section 524 prevents the clamping block 51 connected near the first adapting end 520 from slipping off the first connecting member 52.

With reference to fig. 2 and 3, the second connecting member 53 is provided with a sleeve-joint section 532 sleeved on the first connecting member 52, the sleeve-joint section 532 is located between the two clamping blocks 51 and is provided with a sleeve-joint hole 5320 penetrating along the transverse direction, and the second connecting member 53 is sleeved on the first connecting member 52 through the sleeve-joint hole 5320. The second connecting member 53 is located in the middle of the clamping portion, so that the second adapting end 530 is located at the middle of the top of the main body portion 1, the stability of the installation of the auxiliary handle 5 is facilitated, and the shaking caused by the left-right imbalance is avoided.

As shown in fig. 3, the clamping portion further includes a guide pin 58 extending along the transverse direction, the two clamping blocks 51 and the second connecting member 53 are provided with light holes penetrating along the transverse direction, and the guide pin 58 is received in the light holes of the two clamping blocks 51 and the second connecting member 53. The guide pin 58 is arranged to bring the two clamping blocks 51 and the second connector 53 together in advance and then to securely lock the clamping portion to the mounting portion 10 of the drill by engagement of the threaded section of the first connector 52 with the internal thread of the clamping block 51.

As shown in fig. 1 to 4, the handle portion has an intermediate portion 55 connected to the clamping portion at one end and a handle portion 54 connected to the other end of the intermediate portion 55, and one end of the intermediate portion 55 is selectively connected to the first adapting end 520 or the second adapting end 530. Further, the middle portion 55 is engaged with the first fitting end 520 or the second fitting end 530 in a rotation-proof and quick-detachable manner. The anti-rotation fit is arranged to prevent the middle portion 55 from separating from the first adapting end 520 or the second adapting end 530 due to the rotation of the handle portion 54 caused by a large moment in the using process; and the quick-release arrangement is convenient for a user to quickly replace the mounting position of the auxiliary handle according to the requirement.

Specifically, the first mating end 520 and the second mating end 530 each have a polygonal cross-sectional shape, and the middle portion is provided with an inner polygonal hole recessed from one end, the inner polygonal hole being matched with the first mating end 520 or the second mating end 530. In this embodiment, the first fitting end 520 and the second fitting end 530 have a square cross-sectional shape, the first fitting end 520 and the second fitting end 530 are configured as square cylindrical members, and correspondingly, the end of the middle portion 55 away from the handle portion 54 is provided with a square inner hole, and the engagement of the square cross-section with the square inner hole restricts relative rotation of the two.

The first adapting end 520 and the second adapting end 530 are each provided with a receiving groove recessed inwards from the side wall and an elastic structure at least partially received in the receiving groove, the middle portion 55 is provided with a limiting hole 5510 penetrating through the side wall and communicating with the inner polygonal hole, and when the middle portion 55 is connected to the first adapting end 520 or the second adapting end 530, at least part of the elastic structure is clamped in the limiting hole 5510.

Specifically, the elastic structure includes a ball 56 and an elastic element 57, the elastic element 57 is disposed between the ball 56 and the bottom of the receiving slot for keeping the ball 56 protruding outward from the receiving slot, one end of the middle portion 55 away from the handle portion 54 is provided with a sleeve 551 for receiving the first adapting end 520 or the second adapting end 530, and a sidewall of the sleeve 551 is provided with a limiting hole 5510 for receiving the ball 56. The arrangement enables the sleeve 551 and the first adapting end 520 or the second adapting end 530 to be locked firmly during installation, and when disassembly is needed, the ball 56 is only required to be pressed to withdraw from the limiting hole 5510 of the sleeve 551 and return to the accommodating groove.

To sum up, the utility model provides an auxiliary handle 5 for adaptation electric tool because the clamping part be equipped with each other become angle set up can with auxiliary handle 5 complex first adaptation end 520 and second adaptation end 530 for auxiliary handle 5 can select to install in the position of difference as required, has compromise electric tool compactness and convenient to use's needs.

The present invention is not limited to the above-described embodiments. It will be readily appreciated by those skilled in the art that there are numerous alternatives to the assist handle of the present invention without departing from the spirit and scope of the invention. The protection scope of the present invention is subject to the content of the claims.

Claims

1. An auxiliary handle for attachment to a power tool to assist in gripping, the power tool including a body portion extending in a longitudinal direction and a mounting portion located at a top portion of the body portion, the auxiliary handle being connected to the mounting portion and comprising:

a clamping portion connected to the mounting portion and provided with two clamping blocks oppositely arranged in a transverse direction perpendicular to the longitudinal direction;

a handle portion connected to the clamping portion;

the method is characterized in that: the clamping part is provided with an edge, a first connecting piece and an edge, wherein the first connecting piece extends transversely, the second connecting piece extends vertically, the clamping blocks are sleeved with the second connecting piece, the first connecting piece is located transversely, the second connecting piece is located between the clamping blocks, the first connecting piece is provided with a first adapting end, the second connecting piece is provided with a second adapting end, the second adapting end is connected with the handle part, the first adapting end and the second adapting end are arranged in an angle mode, and the handle part is selectively connected to the first adapting end or the second adapting end.

2. The assist handle according to claim 1 wherein: the first connecting piece and the second connecting piece are arranged at an included angle of 90 degrees.

3. The assist handle as set forth in claim 1 wherein: the first connecting piece is provided with a thread section which is far away from the first adapting end in the transverse direction, the two clamping blocks are respectively provided with a through hole which can correspond to the thread section, the thread section penetrates through the through holes of the two clamping blocks, and the through hole of at least one clamping block is provided with an internal thread which is matched with the external thread of the thread section.

4. The assist handle as set forth in claim 3 wherein: the first connecting piece is further provided with a limiting section which is arranged close to the first adapting end, and the limiting section is attached to the transverse outer wall of the clamping block so as to limit the transverse displacement of the clamping block.

5. The assist handle according to claim 1 wherein: the second connecting piece is provided with a sleeving section sleeved on the first connecting piece, the sleeving section is positioned between the two clamping blocks and is provided with a sleeving hole which transversely penetrates through the sleeving section, and the second connecting piece is sleeved on the first connecting piece through the sleeving hole.

6. The assist handle as set forth in claim 1 wherein: the clamping part further comprises a guide pin extending along the transverse direction, the two clamping blocks and the second connecting piece are respectively provided with an unthreaded hole penetrating along the transverse direction, and the guide pin is contained in the unthreaded holes of the two clamping blocks and the second connecting piece.

7. The assist handle according to claim 1 wherein: the handle portion is provided with a middle portion and a handle portion, one end of the middle portion is connected to the clamping portion, the handle portion is connected to the other end of the middle portion, and one end of the middle portion is selectively connected to the first adapting end or the second adapting end.

8. The assist handle as set forth in claim 7 wherein: the cross sections of the first adapting end and the second adapting end are both polygonal, the middle part is provided with an inner polygonal hole which is inwards sunken from one end, and the inner polygonal hole is matched with the first adapting end or the second adapting end.

9. The assist handle according to claim 8 wherein: the first adapting end and the second adapting end are both provided with accommodating grooves which are sunken inwards from the side walls and elastic structures which are at least partially accommodated in the accommodating grooves, the middle part is provided with a limiting hole which penetrates through the side walls and is communicated with the inner polygonal hole, and when the middle part is connected to the first adapting end or the second adapting end, at least part of the elastic structures is clamped in the limiting hole.

10. The assist handle according to claim 1 wherein: the electric tool comprises a holding part extending downwards from the bottom of the main body part, and the holding part and the main body part are arranged at a certain angle.