CN214870159U

CN214870159U - Electric wrench

Info

Publication number: CN214870159U
Application number: CN202121049126.XU
Authority: CN
Inventors: 孟超; 周红陶
Original assignee: Zhejiang Crown Electric Tools Manufacture Co ltd
Current assignee: Zhejiang Crown Electric Tools Manufacture Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-26
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses an electric wrench, which comprises a gear box and an impact hammer, wherein the impact hammer is arranged in the gear box, the outer wall of the gear box is provided with a silencing layer, and/or a silencing layer is arranged between the inner wall of the gear box and the impact hammer; the silencing layer covers the periphery of the impact hammer. The utility model can effectively reduce the noise generated by the electric wrench during working and improve the operation feeling of the user by adding the silencing layer in the electric wrench; through covering the heat exchanger that separates at the amortization layer outside of gear box outer wall, can effectively avoid the user directly to touch the gear box and cause the scald.

Description

Electric wrench

Technical Field

The utility model belongs to the technical field of electric spanner, especially, relate to an electric spanner with amortization structure.

Background

At present, the application of electric spanner on the market has been very popular, and fig. 1 is the electric spanner schematic structure of prior art, and electric spanner includes the gear box and arranges jump bit 2 in gear box 1, and electric spanner 2 noise ratio of jump bit is bigger when using, very big influence user's operation experience like this. This puts corresponding demands on the sound design of the power tool.

Disclosure of Invention

The utility model aims to solve the technical problem that an electric wrench is provided, which can effectively reduce the noise generated when the wrench is used.

In order to solve the technical problem, the utility model adopts the following technical scheme: an electric wrench comprises a gear box and an impact hammer, wherein the impact hammer is arranged in the gear box, a silencing layer is arranged on the outer wall of the gear box, and/or a silencing layer is arranged between the inner wall of the gear box and the impact hammer; the silencing layer covers the periphery of the impact hammer.

Optionally, the sound-deadening layer is sound-deadening cotton; when be provided with the amortization layer between gear box inner wall and the jump bit, the gear box inner wall is equipped with the recess, amortization layer embedding is installed in the recess.

Optionally, when the outer wall of the gear box is provided with a noise reduction layer, the outer side of the noise reduction layer is covered with a heat insulation cover.

Optionally, the impact hammer can linearly reciprocate in the gear box, and the sound attenuation layer covers the periphery of the linear reciprocating motion track of the impact hammer.

Optionally, the outer wall of the gearbox is tapered.

Optionally, the sound-deadening layer is sound-deadening cotton or a sound-deadening coating.

The utility model discloses a technical scheme, following beneficial effect has:

the utility model adds the noise reduction structure in the electric wrench, which can effectively reduce the noise generated when the electric wrench works and improve the operation feeling of the user; through covering the heat exchanger that separates at the amortization layer outside of gear box outer wall, can effectively avoid the user directly to touch the gear box and cause the scald.

The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

FIG. 1 is a schematic view of a prior art electric wrench;

FIG. 2 is a schematic view of an electric wrench according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the gear box of FIG. 2;

FIG. 4 is a left side view of the electric wrench according to the embodiment of the present invention;

FIG. 5 is a schematic view of a second embodiment of the electric wrench;

FIG. 6 is a left side view of the second embodiment of the electric wrench;

fig. 7 is a right side view of the electric wrench according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

The terminology used 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.

Fig. 2 to 4 are schematic views of an embodiment of the electric wrench according to the present invention, the electric wrench includes a gear box 10 and an impact hammer 2, the impact hammer 2 is disposed in the gear box 10, the impact hammer can rotate in the gear box, and a sound damping layer 11 is disposed between an inner wall of the gear box 10 and the impact hammer 2; the sound-deadening layer 11 covers the periphery of the impact hammer 2.

The sound-deadening layer 11 is sound-deadening cotton or a sound-deadening coating. When the silencing layer 11 is made of silencing cotton, a groove can be formed in the inner wall of the gear box 10, and the silencing cotton is embedded in the groove.

Fig. 5 to 7 are schematic views of an embodiment two of the electric wrench of the present invention, the electric wrench includes a gear box 10 and an impact hammer 2, the impact hammer 2 is disposed in the gear box 10, and the outer wall of the gear box 10 is provided with a sound-deadening layer 11.

The sound-deadening layer 11 is sound-deadening cotton or a sound-deadening coating.

Preferably, the sound-deadening layer 11 is covered with a heat-insulating cover 12 on the outside. Because the gear box 10 is generally made of metal, the gear box 10 can be hot when the electric wrench works for a long time, and the heat insulation cover 12 is additionally arranged, so that the sound attenuation layer 11 can be fixed, and scalding caused by direct touch of the gear box 10 during operation of a user can be effectively avoided.

Optionally, the outer wall of the gearbox 10 is tapered.

The utility model discloses another kind of embodiment of electric spanner, all set up amortization layer 11 between electric spanner gearbox 10 outer wall and gearbox 10 inner wall and the jump bit 2 promptly.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. The utility model provides an electric wrench, includes gear box and percussion hammer, the percussion hammer sets up in the gear box its characterized in that: the outer wall of the gear box is provided with a silencing layer, and/or a silencing layer is arranged between the inner wall of the gear box and the impact hammer;

the silencing layer covers the periphery of the impact hammer.

2. The power wrench as claimed in claim 1, wherein: the silencing layer is silencing cotton; when be provided with the amortization layer between gear box inner wall and the jump bit, the gear box inner wall is equipped with the recess, amortization layer embedding is installed in the recess.

3. The electric wrench as claimed in claim 1 or 2, wherein: when the outer wall of the gear box is provided with a silencing layer, the outer side of the silencing layer is covered with a heat insulation cover.

4. The power wrench as claimed in claim 1, wherein: the outer wall of the gear box is conical.

5. The power wrench as claimed in claim 1, wherein: the sound-deadening layer is sound-deadening cotton or a sound-deadening coating.