CN219726120U - Electric hammer - Google Patents

Abstract

The utility model provides an electric hammer, which relates to the technical field of electric tools and comprises: the electric hammer body and the battery pack are arranged at the bottom of the electric hammer body and are detachably connected with the electric hammer body, and the electric hammer body is also provided with a supporting piece which is rotationally connected with the electric hammer body, so that the supporting piece has a rolling-out state of rotating to extend out of the bottom of the electric hammer body and a retraction state of rotating to not exceed the bottom of the electric hammer body; when the bottom of the matched battery pack is flush with the bottom of the electric hammer body, the supporting piece is in a retracted state; when the bottom of the matched battery pack and the bottom of the electric hammer body are provided with the height difference, the supporting piece is in a turning-out state. Through the roll-out or the withdrawal of support piece, adjust the height of electric hammer body to match different battery package, make the holistic bottom of electric hammer after matching battery package can with mesa parallel and level, the electric hammer can be placed on the mesa steadily, easy operation, convenience have solved prior art and have made the unable problem of placing steadily of electric hammer because of matching different battery package.

Description

Electric hammer

Technical Field

The utility model relates to the technical field of electric tools, in particular to an electric hammer.

Background

The electric hammer is an electric rotary hammer drill with a pneumatic hammering mechanism and a safety clutch, and the basic structure is that a motor drives a drill bit to rotate through gear set engagement, and drives a cylinder and a piston through a clutch swing rod bearing, so that the rotating drill bit generates impact motion; by utilizing the principle of piston movement, the compressed gas impacts the drill bit, and the drill bit can be used for drilling holes in hard materials such as concrete, bricks, stones and the like. The electric hammer is generally matched with a battery pack, and the battery pack provides electric energy for motor rotation.

In the prior art, as in patent CN103753507B, the electric hammer is connected with different numbers of battery packs through an adapter, so as to meet the electric quantity requirements under different conditions. In the electric hammer, the bottom of the shell is approximately level with the bottom of the battery pack only when the battery pack with lower height is installed; when the electric hammer is not used, the electric hammer can be stably placed on the table top; when two battery packs are mounted through the adapter (thereby providing a large current), the housing bottom has a height difference from the battery pack bottom, and the electric hammer cannot be smoothly rested on the table top.

Disclosure of Invention

The embodiment of the utility model aims to provide an electric hammer which can flexibly match battery packs with different heights, so that the electric hammer provided with the battery packs can be stably placed on a table top.

In one aspect of the embodiment of the utility model, there is provided an electric hammer, including an electric hammer body and a battery pack disposed at the bottom of the electric hammer body and detachably connected with the electric hammer body, wherein a support member is further disposed on the electric hammer body, and the support member is rotatably connected with the electric hammer body, so that the support member has a rotated out state extending out of the bottom of the electric hammer body and a rotated retracted state not exceeding the bottom of the electric hammer body; when the bottom of the matched battery pack is flush with the bottom of the electric hammer body, the supporting piece is in a retracted state; when the matched bottom of the battery pack and the bottom of the electric hammer body are in a height difference, the supporting piece is in a turning-out state.

Optionally, the bottom of battery package protrusion in the bottom of electric hammer body, support piece is in the roll-out state, the bottom of battery package with the bottom of support piece is parallel and level.

Optionally, the bottom of electric hammer body has higher portion and lower portion, distance between lower portion and the horizontal plane is less than higher portion with distance between the horizontal plane, lower portion protrusion in the bottom of battery package, support piece sets up in higher portion, support piece rolls out the back and is parallel and level with lower portion.

Optionally, a pivot is arranged in the electric hammer body, and the supporting piece is rotatably connected with the electric hammer body through the pivot; the support piece comprises a connecting part and an extending part, wherein the connecting part is positioned in the electric hammer body, the extending part can extend out of the electric hammer body, and the pivot is positioned at the joint of the connecting part and the extending part.

Optionally, an included angle is formed between the connection portion and the extension portion, so that the cross section of the support member forms an L shape.

Optionally, the electric hammer body is internally further provided with an elastic sheet, the elastic sheet is provided with a fixed end connected with the electric hammer body and a movable free end, one end of the connecting portion, which is far away from the extending portion, is abutted with the free end of the elastic sheet, and the free end of the elastic sheet applies acting force towards the bottom of the electric hammer body to one end of the connecting portion, which is far away from the extending portion.

Optionally, when the support is in the retracted state or the rotated state, the abutting positions of the connecting part and the free end of the elastic piece are respectively located at two sides of the pivot.

Optionally, the electric hammer body is internally provided with the draw-in groove of L shape, the stiff end of elastic piece match set up in the draw-in groove, the free end of elastic piece is followed towards the direction slope of bottom extends.

Optionally, the length of the extension of the support is adjustable to match battery packs of different heights when the support is in the rolled-out state.

Optionally, a groove is formed at the bottom of the electric hammer body, and is used for accommodating the extension part of the supporting piece, so that the extension part is retracted into the electric hammer body through the groove when the supporting piece is in a retracted state; one end of the extension part, which is far away from the connecting part, is provided with a buckling groove, and the supporting piece is pulled by the buckling groove to rotate relative to the electric hammer body.

The electric hammer provided by the embodiment of the utility model comprises an electric hammer body and a battery pack, wherein the battery pack is positioned at the bottom of the electric hammer body and is detachably connected with the electric hammer body, the electric hammer body can be matched with different battery packs, and the electric hammer body is further provided with a rotatable supporting piece; when the bottom of the matched battery pack is flush with the bottom of the electric hammer body, the supporting piece rotates into the electric hammer body to be in a retracted state, and the electric hammer can be stably placed on the table top; when the bottom of the matched battery pack is not level with the bottom of the electric hammer body and has a height difference, the supporting piece is rotated to a state of not exceeding the bottom of the electric hammer body, so that the electric hammer can be stably placed on the table top. After the electric hammer body is matched with different battery packs, the bottom of the whole electric hammer matched with the battery packs can be flush with the table top through the turning-out or the retraction of the supporting piece, the electric hammer can be stably placed on the table top, the electric hammer can be completed through manually operating the turning-out or the retraction of the supporting piece, the structure is simple, the operation is simple and convenient, and the problem that the electric hammer cannot be stably placed due to the fact that the electric hammer is matched with different battery packs in the prior art is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a state of a first embodiment of a battery pack for matching an electric hammer provided in the present embodiment;

fig. 2 is a schematic view showing a state of a second embodiment of the electric hammer matching battery pack provided in the present embodiment;

fig. 3 is a schematic state diagram of a third embodiment of the electric hammer matching battery pack provided in the present embodiment;

fig. 4 is a schematic structural diagram of a first embodiment of the electric hammer matching battery pack provided in the present embodiment;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

fig. 6 is a schematic structural diagram of a second embodiment of the electric hammer matching battery pack provided in the present embodiment;

FIG. 7 is an enlarged schematic view at B in FIG. 6;

fig. 8 is a partial schematic view of a second embodiment of the electric hammer matching battery pack provided in the present embodiment.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of this application, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

It should also be noted that the terms "disposed," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically defined and limited; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, an embodiment of the present utility model provides an electric hammer, including: the electric hammer comprises an electric hammer body 10 and a battery pack 20 which is arranged at the bottom of the electric hammer body 10 and is detachably connected with the electric hammer body 10, wherein a supporting piece 100 is further arranged on the electric hammer body 10, and the supporting piece 100 is rotationally connected with the electric hammer body 10, so that the supporting piece 100 has a rotating-out state of rotating to extend out of the bottom of the electric hammer body 10 and a retracting state of rotating to not exceed the bottom of the electric hammer body 10; when the bottom of the matched battery pack 20 is flush with the bottom of the hammer body 10, the supporting member 100 is in a retracted state, and the hammer can be stably supported; when the bottom of the matched battery pack 20 and the bottom of the hammer body 10 have a height difference, the supporting member 100 is in a rotated-out state so that the hammer can be stably supported.

The battery pack 20 is matched with the electric hammer body 10 to supply power for the rotation of the motor of the electric hammer body 10. The battery pack 20 and the electric hammer body 10 are detachably connected, so that the electric hammer body 10 can be matched with battery packs 20 with different electric quantities, and the heights of the battery packs 20 are different when the electric quantities of the battery packs 20 are different.

In a first possible implementation of the present utility model, as shown in fig. 1, the electric hammer body 10 is matched with a first battery pack, and after the first battery pack is mounted on the electric hammer body 10, the bottom of the first battery pack is flush with the bottom of the electric hammer body 10, at this time, the electric hammer with the first battery pack can be stably placed on a table top.

It can be understood that "the battery pack is disposed at the bottom of the electric hammer body 10 and detachably connected to the electric hammer body 10", "the bottom of the first battery pack is flush with the bottom of the electric hammer body 10" -the meaning of the bottom of the electric hammer body 10 (in the two places) is slightly different, and the first place refers to any position of the bottom of the electric hammer body 10 where the battery pack is not mounted; the second place is the bottom of the hammer body 10 excluding the space occupied by the battery pack after the battery pack is mounted.

In a second possible mode of the present utility model, as shown in fig. 2, the electric hammer body 10 is matched with a second battery pack, and after the second battery pack is mounted on the electric hammer body 10, there is a height difference between the bottom of the second battery pack and the bottom of the electric hammer body 10, in other words, the bottoms of the two are not flush, at this time, if the electric hammer with the second battery pack is placed on the table surface, the electric hammer cannot be placed smoothly because the bottom of the second battery pack and the bottom of the electric hammer body 10 are not flush. In this case, the support 100 of the present utility model can be used to compensate for the height difference between the bottom of the second battery pack and the bottom of the hammer body 10 so that the entire bottom of the hammer is flush with the table top, and the hammer can be smoothly placed on the table top.

Specifically, the supporting member 100 is located on the electric hammer body 10, the supporting member 100 is rotationally connected with the electric hammer body 10, when the supporting member 100 rotates into the electric hammer body 10, the supporting member 100 is in a retracted state, and the supporting member 100 can be applied to a first realizable mode, that is, the bottom of the first battery pack is flush with the bottom of the electric hammer body 10, the supporting member 100 is retracted into the electric hammer body 10 without exceeding the bottom of the electric hammer body 10, the supporting member 100 does not function or does not play a main supporting role, and the electric hammer is stably placed on the table surface by virtue of the characteristic that the bottom of the first battery pack is flush with the bottom of the electric hammer body 10.

In a second possible way, the bottom of the second battery pack and the bottom of the hammer body 10 are not flush, at which time the support 100 is rotated to extend out of the hammer body 10, and the difference in height between the bottom of the second battery pack and the bottom of the hammer body 10 is compensated for by the support 100. For example, in fig. 2, the bottom of the second battery pack protrudes from the bottom of the electric hammer body 10, and the supporting member 100 is in a rotated-out state, at this time, the bottom of the second battery pack is flush with the bottom of the supporting member 100, and when the electric hammer is placed, the electric hammer is smoothly placed by the bottom of the supporting member 100 and the bottom of the second battery pack 20.

It may also be that, as shown in fig. 3, the bottom of the electric hammer body 10 has a higher portion and a lower portion, the lower portion protrudes from the bottom of the battery pack 20, the supporting member 100 is disposed at the higher portion, and the supporting member 100 is flush with the lower portion after being rotated out. By the support 100 and the support of the lower portion, the electric hammer is smoothly placed. It should be noted that "upper" and "lower" herein refer to a table surface for supporting the electric hammer.

It can be seen that the present utility model exemplifies a state in which the first battery pack is flush with the hammer body 10, when the supporting member 100 is in the retracted state; the two cases where the bottom of the second battery pack protrudes from the bottom (lower portion) of the electric hammer body 10 and the bottom (lower portion) of the electric hammer body 10 protrudes from the bottom of the second battery pack are also exemplified, respectively, at which time the supporting member 100 is in a rotated-out state, and the height difference between the entire bottoms of the electric hammers is compensated by the supporting member 100, so that the electric hammers are stably placed.

In summary, the electric hammer provided by the embodiment of the utility model comprises an electric hammer body 10 and a battery pack 20, wherein the battery pack 20 is positioned at the bottom of the electric hammer body 10 and is detachably connected with the electric hammer body 10, the electric hammer body 10 can be matched with different battery packs 20, and the electric hammer body 10 is further provided with a rotatable supporting piece 100; when the bottom of the matched battery pack 20 is flush with the bottom of the electric hammer body 10, the supporting member 100 is rotated to a state of not exceeding the bottom of the electric hammer body 10 and is retracted, and at this time, the electric hammer can be stably placed on the table top; when the bottom of the battery pack 20 and the bottom of the hammer body 10 are not flush, the supporting member 100 is rotated to a rotated state extending out of the hammer body 10, so that the supporting member 100 and the bottom of the battery pack 20 support the hammer together, or the supporting member 100 and the lower part of the hammer body 10 support the hammer together, and the hammer can be stably placed on the table. After the electric hammer body 10 is matched with different battery packs 20, the electric hammer can be stably placed on a table surface through the turning-out or the retraction of the supporting piece 100, and the electric hammer can be completed through the turning-out or the retraction of the supporting piece 100 by manual operation, so that the electric hammer is simple in structure and easy and convenient to operate, and the problem that the electric hammer cannot be stably placed due to the fact that the electric hammer is matched with different battery packs 20 in the prior art is solved.

Further, as shown in fig. 4 and 5, a pivot 11 is provided in the hammer body 10, and the support 100 is rotatably connected to the hammer body 10 through the pivot 11; the support 100 includes a connection portion 100a located in the hammer body 10 and an extension portion 100b that can extend out of the hammer body 10, and the pivot 11 is located at the junction of the connection portion 100a and the extension portion 100 b.

The pivot 11 is fixedly arranged on the electric hammer body 10 and is perpendicular to the working head of the electric hammer. Wherein the connection part 100a is located in the hammer body 10, the extension part 100b is located outside the hammer body 10, and when the support 100 is switched from the retracted state to the rotated-out state, as shown in fig. 5 and 7, the support 100 is rotated along the pivot 11, so that the extension part 100b is rotated out from the state of being abutted against the bottom of the hammer body 10 shown in fig. 5 to the state of being protruded out of the bottom of the hammer body 10 shown in fig. 7, and the support 100 can support the hammer body 10 to compensate for the height difference with the battery pack 20. In this process, the connection portion 100a of the support 100 is always located in the hammer body 10 and rotates along the pivot shaft 11.

Illustratively, the connecting portion 100a and the extending portion 100b have an included angle therebetween, and the cross section of the supporting member 100 is formed in an L shape to satisfy the above-mentioned functional requirements. When the support 100 is in the retracted state, the connection portion 100a is substantially perpendicular to the bottom of the hammer body 10, and the extension portion 100b is substantially parallel to the bottom of the hammer body 10.

As shown in fig. 8, a recess 10a is provided at the bottom of the hammer body 10 for receiving the extension 100b of the support 100 such that the extension 100b is retracted into the hammer body 10 through the recess 10a when the support 100 is in the retracted state. After the extension part 100b is retracted into the hammer body 10, the bottom of the extension part 100b is flush with the bottom of the hammer body 10.

The end of the extension part 100b far away from the connection part 100a is provided with a buckling groove 101, and the buckling groove 101 pulls the supporting piece 100 to rotate relative to the electric hammer body 10, so that the switching between the retraction state and the turning-out state is realized.

Specifically, the extension portion 100b is provided with a U-shaped fastening groove 101, and when the support member 100 needs to be manually pulled, the support member 100 can be pulled out of the electric hammer body 10 only by the fastening groove 101, and the support member 100 is rotated to rotate the support member 100 out.

In addition, as shown in fig. 5 and 7, an elastic piece 12 is further disposed in the electric hammer body 10, the elastic piece 12 has a fixed end 12a connected to the electric hammer body 10 and a movable free end 12b, one end of the connecting portion 100a away from the extending portion 100b abuts against the free end 12b of the elastic piece 12, and the free end 12b of the elastic piece 12 applies a force towards the bottom of the electric hammer body 10 to one end of the connecting portion 100a away from the extending portion 100 b.

Specifically, an L-shaped clamping groove is formed in the electric hammer body 10, the fixed end 12a of the elastic piece 12 is arranged in the clamping groove in a matching manner, and the free end 12b of the elastic piece 12 extends obliquely in a direction towards the bottom.

The elastic piece 12 has an L-shaped structure, the fixed end 12a is fixed in a clamping groove in the electric hammer body 10, and the free end 12b extends obliquely to the bottom direction of the electric hammer body 10 so as to provide a pressing rotation force for the connecting part 100a of the supporting piece 100.

In this embodiment, the elastic piece 12 is located in the electric hammer body 10 above the supporting member 100, the elastic piece 12 is fixed in the electric hammer body 10 by the fixed end 12a, and the free end 12b of the elastic piece 12 is movable; the free end 12b of the elastic piece 12 is in contact with the connection portion 100a of the support 100, and the elastic piece 12 gives a pressing rotational force to the connection portion 100 a. When the supporting member 100 is in the retracted state, the elastic piece 12 provides a clockwise rotation force to the supporting member 100, so that the supporting member 100 can be ensured not to fall off in the retracted state, and the extension part 100b of the supporting member 100 can keep the state of being retracted in the electric hammer body 10; when the supporting member 100 is in the out state, the elastic piece 12 provides a counterclockwise rotation force to the supporting member 100, so that the supporting member 100 can be ensured not to rebound, and the supporting member 100 is ensured to be in the extended state to support the electric hammer body 10, so that the position of the supporting member 100 is fixed.

When the support 100 is in the retracted state or the rotated state, the abutment positions of the connecting portion 100a and the free end 12b of the elastic piece 12 are located on both sides of the pivot 11, respectively.

Illustratively, when the support 100 is in the retracted state in fig. 5, the abutment position S1 of the connection portion 100a and the elastic piece 12 is located on the right side of the pivot 11. When the trigger support 100 rotates, the extension portion 100b rotates along the pivot 11 to the rotated-out state shown in fig. 6 and 7, and in the switching process from the retracted state shown in fig. 5 to the rotated-out state shown in fig. 7, the connection portion 100a moves in abutment along the elastic piece 12, so that the connection portion 100a moves along the elastic piece 12 to the abutment position S2 of both, and at this time, the abutment position S2 is located on the left side of the pivot 11. In other words, in the retracted and rotated out states of the support 100, the abutting positions (the lower pressure contacting positions) of the connection portion 100a and the elastic piece 12 are located at both sides of the pivot 11, respectively, to make full use of the structural space, simplifying the structure.

On this basis, in order to enable the support 100 to more widely match battery packs 20 of different heights, the length of the extension 100b of the support is adjustable to match battery packs 20 of different heights when the support 100 is in the rolled-out state.

Illustratively, the extension 100b of the support 100 includes a first extension connected to the connection 100a and a second extension connected to the first extension, the second extension being threadedly connected to the first extension.

The extension 100b can support the hammer body 10 when protruding from the hammer body 10; the first extension portion and the second extension portion of the extension portion 100b are in threaded connection, so that the second extension portion can extend to a required position relative to the first extension portion to match with the battery pack 20 with a specific height, in this case, when the electric hammer body 10 of the present utility model matches with the battery pack 20, the limitation on the height of the battery pack 20 is very low, the matching range of the battery pack 20 is greatly enlarged, and the matching flexibility is improved.

The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An electric hammer, characterized by comprising: the electric hammer comprises an electric hammer body and a battery pack which is arranged at the bottom of the electric hammer body and is detachably connected with the electric hammer body, wherein a supporting piece is further arranged on the electric hammer body and is rotationally connected with the electric hammer body, so that the supporting piece has a turning-out state of rotating to extend out of the bottom of the electric hammer body and a retracting state of rotating to not extend out of the bottom of the electric hammer body; when the bottom of the matched battery pack is flush with the bottom of the electric hammer body, the supporting piece is in a retracted state; when the matched bottom of the battery pack and the bottom of the electric hammer body are in a height difference, the supporting piece is in a turning-out state.

2. The electric hammer of claim 1, wherein the bottom of the battery pack protrudes from the bottom of the electric hammer body, the support is in a rotated-out state, and the bottom of the battery pack is flush with the bottom of the support.

3. The electric hammer according to claim 1, wherein the bottom of the electric hammer body has a higher portion and a lower portion, a distance between the lower portion and a horizontal plane is smaller than a distance between the higher portion and the horizontal plane, the lower portion protrudes from the bottom of the battery pack, the support is provided at the higher portion, and the support is flush with the lower portion after being rotated out.

4. A hammer according to any one of claims 1 to 3, wherein a pivot is provided in the hammer body, the support being rotatably connected to the hammer body by the pivot;

the support piece comprises a connecting part and an extending part, wherein the connecting part is positioned in the electric hammer body, the extending part can extend out of the electric hammer body, and the pivot is positioned at the joint of the connecting part and the extending part.

5. The electric hammer of claim 4, wherein the connecting portion and the extending portion have an included angle therebetween such that a cross section of the support member forms an L-shape.

6. The electric hammer according to claim 4, wherein an elastic piece is further provided in the electric hammer body, the elastic piece has a fixed end connected with the electric hammer body and a movable free end, an end of the connecting portion away from the extending portion abuts against the free end of the elastic piece, and the free end of the elastic piece applies a force to an end of the connecting portion away from the extending portion toward the bottom of the electric hammer body.

7. The electric hammer of claim 6, wherein the abutment positions of the free ends of the elastic pieces and the connection portions are located on both sides of the pivot shaft, respectively, when the support member is in the retracted state or the rotated state.

8. The electric hammer according to claim 6, wherein an L-shaped clamping groove is formed in the electric hammer body, the fixed end of the elastic piece is arranged in the clamping groove in a matching manner, and the free end of the elastic piece extends obliquely in a direction towards the bottom.

9. The electric hammer of claim 4, wherein the extension of the support member is adjustable in length to match battery packs of different heights when the support member is in the rolled-out state.

10. The electric hammer according to claim 4, wherein a recess is provided in a bottom of the electric hammer body for receiving the extension of the support member such that the extension is retracted into the electric hammer body through the recess when the support member is in the retracted state; one end of the extension part, which is far away from the connecting part, is provided with a buckling groove, and the supporting piece is pulled by the buckling groove to rotate relative to the electric hammer body.