CN218226484U

CN218226484U - Electric hammer

Info

Publication number: CN218226484U
Application number: CN202221716018.8U
Authority: CN
Inventors: 刘双凤
Original assignee: Suzhou Meili Tool Technology Co ltd
Current assignee: Suzhou Meili Tool Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2023-01-06
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses an electric hammer, include: a body having a cavity; the working assembly is arranged on the machine body; the driving assembly is connected with the working assembly and is suitable for driving the working assembly to move relative to the machine body; and a signal generating mechanism disposed within the cavity; the signal generating mechanism is in signal connection with the driving assembly, and at least part of the signal generating mechanism can move relative to the cavity when accelerated by external force; the drive assembly stops working when the signal generating mechanism performs the movement; this application is through the aforesaid setting to make when the electric hammer breaks down and drives the staff and rotate or take off one's hand, signal production mechanism can produce an accelerated motion because inertial action, and then makes drive assembly stop work, lets the work subassembly stop work of electric hammer no longer rotate, avoids pivoted organism or work subassembly to cause the harm to operating personnel or electric hammer self.

Description

Electric hammer

Technical Field

The application belongs to the technical field of electric tools, and particularly relates to an electric hammer.

Background

With the progress of science and technology, a plurality of electric tools are provided to replace manual operation of people, and drilling, crushing and the like are performed on a working face through automatic operation of the electric tools.

Among the prior art, the electric hammer is when driling the working face, the relative electric hammer body of working assembly through drive assembly drive electric hammer rotates, and then use pivoted working assembly to carry out drilling processing on the working face, but at the drilling in-process, when electric hammer body and working assembly break down the card die or operating personnel do not hold the electric hammer tightly, just probably lead to the electric hammer relative human body to rotate or cause the electric hammer to take off the hand, and then probably cause operating personnel's hand to be torn the injury, and also cause the damage of electric hammer self with other object collisions easily after the electric hammer takes off the hand.

Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses the technical problem that solve is how to improve the security of electric hammer operation in-process.

In order to solve the technical problem, the utility model provides an electric hammer, include:

a body having a cavity;

the working assembly is arranged on the machine body;

the driving assembly is connected with the working assembly and is suitable for driving the working assembly to move relative to the machine body; and

the signal generating mechanism is arranged in the cavity;

the signal generating mechanism is in signal connection with the driving assembly, and at least part of the signal generating mechanism can move relative to the cavity when accelerated by external force; the drive assembly stops operating when the signal generating mechanism performs the movement.

Further, the signal generating mechanism comprises an eccentric rotating assembly and a detecting assembly;

the detection assembly is arranged on the inner wall of the cavity, and the eccentric rotation assembly can move relative to the detection assembly when accelerated by the external force, so that the driving assembly stops working.

Furthermore, the eccentric rotating assembly comprises a rotating part which is rotationally connected with the machine body, and an eccentric block and a magnetic part which are respectively arranged at two ends of the rotating part;

the rotating piece can rotate relative to the detection assembly under the driving of the eccentric block, and the magnetic piece has an initial position staggered relative to the detection assembly and a stop position superposed relative to the detection assembly along the height direction of the machine body; when the rotating piece is static relative to the machine body, the magnetic piece is in the initial position, and the driving assembly is started; when the rotating piece rotates relative to the machine body, the magnetic piece is located at the stop position, and the driving assembly stops.

Furthermore, a shaft lever is arranged in the cavity, the middle part of the rotating piece is rotatably sleeved on the shaft lever, and the rotating piece can rotate around the axial direction of the shaft lever;

the axial direction of the shaft lever and the axial direction of the working assembly are arranged perpendicular to each other.

Furthermore, the electric hammer is also provided with an elastic component which is connected with the side wall of the cavity and the end side of the rotating piece where the magnetic piece is positioned;

the rotating piece and the inner wall of the cavity are spaced, and the elastic assembly is arranged above the detection assembly along the height direction of the machine body.

Further, the detection assembly comprises a first detection member and a second detection member; along the length direction of the rotating piece, the first detection piece and the second detection piece are oppositely arranged on the inner wall of the cavity corresponding to the two sides of the magnetic piece;

the elastic assemblies are correspondingly arranged in two groups, and the two groups of elastic assemblies are correspondingly arranged above the first detection piece and the second detection piece.

Further, the machine body comprises a body and a handle part connected with the body, and the cavity is formed in the body;

along the height direction of the machine body, the eccentric rotating assembly is arranged at the bottom of the body.

Further, the driving component comprises a driving piece and a transmission piece for connecting the driving piece and the working component;

the driving piece drives the working assembly to rotate relative to the machine body or move along the axial direction of the working assembly through the transmission piece.

Furthermore, the driving part is a forward and reverse rotation motor, and the working assembly can rotate clockwise or counterclockwise relative to the machine body under the driving of the driving part.

Furthermore, the electric hammer is further provided with a switching piece, and the switching piece is used for switching the rotating direction of the working assembly relative to the machine body.

The technical scheme provided by the utility model, following advantage has: the electric hammer of the utility model is provided with a machine body with a cavity, a working assembly arranged on the machine body, a driving assembly connected with the working assembly and a signal generating mechanism arranged in the cavity, wherein the signal generating mechanism is in signal connection with the driving assembly, at least part of the signal generating mechanism can move relative to the cavity when accelerated by external force, and the driving assembly stops working when the signal generating mechanism moves; therefore, when the electric hammer breaks down to drive the hand to rotate or release the hand, the signal generating mechanism can generate an accelerated motion under the action of inertia, so that the driving assembly stops working, the working assembly of the electric hammer stops working and does not rotate any more, and the damage to an operator or the electric hammer caused by the rotating machine body or the working assembly is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an electric hammer of the present invention;

FIG. 2 is a schematic diagram of a magnetic member of the eccentric rotating assembly of the electric hammer shown in FIG. 1 in an initial position;

fig. 3 is a structural schematic diagram of a magnetic member of the eccentric rotating assembly of the electric hammer shown in fig. 1 in a stop position.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present application, where the contrary is not intended, the use of directional terms such as "upper, lower, top, bottom" generally refer to the orientation as shown in the drawings, or to the component itself being oriented in a vertical, perpendicular, or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

Referring to fig. 1 to fig. 3, the present embodiment provides an electric hammer for processing a working surface, wherein the working surface may be a ground surface, a wall surface, or an object surface, and may be selected according to actual requirements, which is not limited herein.

The electric hammer includes organism 1, the drive assembly 3 that sets up work subassembly 2 on organism 1 and be connected with work subassembly 2, wherein, drive assembly 3 sets up in cavity 11, can drive 2 relative organisms of work subassembly 1 and move, and then process the working face through the work subassembly 2 of motion, the mode of 2 motions of work subassembly can also be for rotating the hammering motion, thereby carry out drilling or broken work to the working face, and decide according to actual need, do not specifically prescribe a limit to here.

Specifically, organism 1 includes body 12 and the handle portion 13 of being connected with body 12, organism 1 has cavity 11, drive assembly 3 sets up in cavity 11, drive assembly 3 includes driving piece 31, and the driving medium 32 of connecting driving piece 31 and work subassembly 2, the electric hammer is at the during operation, driving piece 31 drives work subassembly 2 and rotates in order to drill at the working face through driving medium 32 relatively organism 1, perhaps remove with the broken working face of hammering along the axial direction of work subassembly 2, thereby realize the processing of work subassembly 2 to the working face. In this embodiment, the driving member 31 is provided with one, the driving member 31 is a forward and reverse rotation motor, and the working assembly 2 can rotate clockwise or counterclockwise relative to the machine body 1 under the driving of the driving member 31 through forward and reverse rotation adjustment of the forward and reverse rotation motor, so as to meet the drilling requirements of different holes.

In other embodiments, the arrangement of the driving members 31 may be selected according to actual situations, for example, two driving members 31 are provided, the driving directions of the two driving members 31 are opposite, and at this time, the working assembly 2 is matched with the driving members 31 with different driving directions to rotate the working assembly 2 clockwise or counterclockwise relative to the machine body 1, which is not limited herein as long as the actual requirements can be met.

In order to facilitate switching of the rotation direction of the working assembly 2 relative to the machine body 1, in this embodiment, the electric hammer is further provided with a switching piece 7, the switching piece 7 is a switching button, the rotation direction of the working assembly 2 relative to the machine body 1 can be switched by pressing the switching button, so that the working assembly 2 is switched between clockwise rotation and counterclockwise rotation, and the electric hammer is convenient for a user to use and control the electric hammer.

However, current electric hammer is in the use of carrying out drilling processing to the working face, and when electric hammer organism 1 and working component 2 broke down the card and die or operating personnel did not hold the electric hammer tightly, just probably lead to the electric hammer to rotate or cause the electric hammer to take off the hand relatively the human body, and then probably cause operating personnel's hand to be torn the injury, and also easy and other object collisions caused the damage of electric hammer self after the electric hammer takes off the hand.

In order to solve the problems existing in the prior art, in this embodiment, the electric hammer is further provided with a signal generating mechanism, the signal generating mechanism is disposed in the cavity 11 and is in signal connection with the driving component 3, wherein at least part of the signal generating mechanism can move relative to the cavity 11 when accelerated by an external force, so that the signal generating mechanism generates a driving signal, the driving component 3 can stop working under the driving of the driving signal, so that when the electric hammer fails to drive a human hand to rotate or release the hand, the signal generating mechanism can generate an accelerated motion due to an inertia effect, so that the driving component 3 stops working, the working component 2 of the electric hammer stops working and does not rotate, and the damage of the rotating machine body 1 or the working component 2 to an operator or the electric hammer is avoided.

Specifically, signal generation mechanism includes eccentric rotating assembly 4 and determine module 5, along organism 1's direction of height, eccentric rotating assembly 4 sets up in the cavity 11 of body 12 bottom, drive assembly 3 sets up the top at eccentric rotating assembly 4, eccentric rotating assembly 4 can move relative determine module 5 when receiving external force acceleration, and then make determine module 4 produce a drive signal and drive the stop work of determine module 3, let the 2 stop work of electric hammer no longer rotate, avoid pivoted organism 1 or determine module 2 to cause the harm to operating personnel or electric hammer self.

The eccentric rotating assembly 4 comprises a rotating part 41 rotatably connected with the machine body 1, and an eccentric block 42 and a magnetic part 43 which are respectively arranged at two ends of the rotating part 41, the detecting assembly 5 is arranged on the inner wall of the cavity 11, the rotating part 41 can rotate relative to the detecting assembly 5 under the drive of the eccentric block 42, along the height direction of the machine body 1, the magnetic part 43 is provided with an initial position which is relatively staggered with the detecting assembly 5 and a stop position which is relatively coincident with the detecting assembly 5, when the electric hammer normally works, the magnetic part 43 is at the initial position, the driving assembly 3 is normally opened, when the electric hammer fails to drive a hand to rotate or release, the eccentric block 42 can drive the rotating part 41 to rotate relative to the machine body 1 due to inertia effect, and then the magnetic part 43 is driven to be switched to the stop position, at the moment, the detecting assembly 5 detects the movement of the magnetic part 43, and further generates a driving signal to drive the driving assembly 3 to stop working.

Be provided with axostylus axostyle 111 in the cavity 11, the middle part of rotating member 41 is rotated the cover and is established on axostylus axostyle 111, in this embodiment, the axial direction of axostylus axostyle 111 sets up with the axial direction mutually perpendicular of work subassembly 2, and then make when the electric hammer breaks down and drives the staff and rotate or take off the hand, eccentric block 42 can be easier drive rotating member 41 and rotate around the relative organism 1 of this axostylus axostyle 111, thereby make the magnetic part 43 of the other end of rotating member 41 remove to the parking position, in order to realize the stopping of electric hammer.

In order to prevent the rotating member 41 from moving when the electric hammer slightly vibrates, so that the electric hammer is stopped, in this embodiment, the electric hammer is further provided with an elastic assembly 6, the elastic assembly 6 is used for connecting the side wall of the cavity 11 and the end side of the rotating member 41 where the magnetic member 43 is located, a distance is provided between the rotating member 41 and the inner wall of the cavity 11, the elastic assembly 6 is arranged above the detection assembly 5 along the height direction of the machine body 1, when the electric hammer normally works, the rotating member 41 is kept at an initial position under the elastic force of the elastic assembly 6, and even if the electric hammer slightly shakes or moves during working, due to the elastic force of the elastic assembly 6, the rotating member 41 cannot drive the magnetic member 43 to move to the stop position, so that the electric hammer is not stopped, and the normal working of the electric hammer is ensured. And when the electric hammer breaks down and drives the staff to rotate or take off the hand, because the quality of eccentric block 42 is big enough, the power that elastic component 6 received surpasss self elasticity and takes place elastic deformation, and then makes magnetic force piece 43 can normally remove to the shut-down position, in time stops the electric hammer, guarantees the safety of user of service and electric hammer itself. In the present embodiment, the elastic member 6 is a spring.

In other embodiments, the corresponding elastic component 6, such as an elastic damping rod, may be selected according to actual conditions, as long as the actual requirements can be met, and is not limited herein.

In order to enable the eccentric rotating assembly 4 to normally work when the working assembly 2 rotates clockwise or counterclockwise, in this embodiment, the detecting assembly 5 includes a first detecting member and a second detecting member, along the length direction of the rotating member 41, the first detecting member and the second detecting member are relatively disposed on the inner wall of the cavity 11 corresponding to the two sides of the magnetic member 43, at this time, two sets of elastic assemblies 6 are correspondingly disposed above the first detecting member and the second detecting member, so that when the electric hammer fails to drive the hand to rotate or release, no matter the rotation direction of the working assembly 2 is clockwise or counterclockwise, the magnetic member 43 can move towards the corresponding first detecting member or second detecting member to reach the stop position, and the driving assembly 3 stops.

In other embodiments, the arrangement mode of the detecting assembly 5 may be selected according to actual situations, for example, the detecting assembly 5 may also be provided with a detecting member, and at this time, the rotating member 41 is further provided with a limiting member on a side opposite to the detecting assembly 5 to limit the rotating direction of the rotating member 41, as long as the actual requirement can be met, which is not specifically limited herein.

In this embodiment, first detection piece and second detection piece are hall sensor, and magnetic force piece 43 is magnet, and the position that magnetic force piece 43 was located is judged through the signal response of hall sensor and magnet, and is simple and convenient.

In other embodiments, the corresponding detecting component 5, such as an infrared sensor or a distance sensor, may be selected according to actual situations, as long as the actual requirements can be met, which is not specifically limited herein.

In summary, the following steps: the electric hammer of the utility model is provided with a machine body with a cavity, a working assembly arranged on the machine body, a driving assembly connected with the working assembly and a signal generating mechanism arranged in the cavity, wherein the signal generating mechanism is in signal connection with the driving assembly, at least part of the signal generating mechanism can move relative to the cavity when accelerated by external force, and the driving assembly stops working when the signal generating mechanism moves; therefore, when the electric hammer breaks down to drive the hand to rotate or release the hand, the signal generating mechanism can generate an accelerated motion under the action of inertia, so that the driving assembly stops working, the working assembly of the electric hammer stops working and does not rotate any more, and the damage to an operator or the electric hammer caused by the rotating machine body or the working assembly is avoided.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, a person skilled in the art can make changes or changes in other different forms without creative work, and all should belong to the protection scope of the present invention.

Claims

1. An electric hammer, comprising:

a body having a cavity;

the working assembly is arranged on the machine body;

the signal generating mechanism is arranged in the cavity;

2. The hammer of claim 1, wherein the signal generating mechanism includes an eccentric rotating assembly and a sensing assembly;

3. The electric hammer according to claim 2, wherein the eccentric rotary member includes a rotary member rotatably coupled to the body, and an eccentric mass and a magnetic member respectively provided at both ends of the rotary member;

4. The electric hammer according to claim 3, wherein a shaft rod is arranged in the cavity, a middle part of the rotating member is rotatably sleeved on the shaft rod, and the rotating member can rotate around the axial direction of the shaft rod;

5. The electric hammer according to claim 4, wherein the electric hammer is further provided with an elastic member connecting a side wall of the chamber and an end side of the rotary member where the magnetic member is located;

the rotating part and the inner wall of the cavity are spaced, and the elastic component is arranged above the detection component along the height direction of the machine body.

6. The hammer of claim 5, wherein the sensing assembly includes a first sensing member and a second sensing member; along the length direction of the rotating piece, the first detecting piece and the second detecting piece are oppositely arranged on the inner wall of the cavity corresponding to the two sides of the magnetic piece;

the elastic components are correspondingly arranged in two groups, and the two groups of elastic components are correspondingly arranged above the first detection piece and the second detection piece.

7. The electric hammer of claim 2, wherein the body includes a body and a handle portion connected to the body, the cavity being formed in the body;

8. The hammer of claim 1, wherein the drive assembly includes a drive member and a transmission member connecting the drive member and the working assembly;

9. The electric hammer of claim 8, wherein the driving member is a counter-rotating motor, and the working assembly is driven by the driving member to rotate in a clockwise direction or a counterclockwise direction relative to the machine body.

10. The electric hammer of claim 9, further provided with a switching member for switching a rotation direction of the working assembly with respect to the machine body.