CN213971018U

CN213971018U - Straight impact tool

Info

Publication number: CN213971018U
Application number: CN202023112321.0U
Authority: CN
Inventors: 甄波; 杨红; 嵇万里
Original assignee: Bosch Power Tools China Co Ltd
Current assignee: Bosch Power Tools China Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-17
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a straight impact tool, includes the main casing body, set up in the main casing body front end strike the barrel, set up in strike the working head of barrel front end and set up in the main handle of main casing body rear end, the main casing body equipment has motor and gear box, it strikes the piston to be equipped with in the barrel to strike, the main casing body is the metalwork with strikeing the barrel, straight impact tool including assemble in the plastic casing of main casing body one side, straight impact tool including assemble in the main casing body and/or strike the barrel in order to form the metal protection piece in the protection space of plastic casing. The metal protection piece provides protection for the plastic shell when being placed or toppled, and then guarantees the overall performance and the service life of the straight impact tool.

Description

Straight impact tool

Technical Field

The present application relates to the field of power tools, and more particularly, to a straight impact tool.

Background

A straight impact tool, such as a straight hammer or a straight electric pick, is widely used in the civil engineering and construction fields, and an operator generally grips a rear end handle of the straight impact tool with both hands and breaks a target object by reciprocating impact output from a front chisel. However, the quality and the main control and transmission components of the straight impact tool are concentrated at the rear end of the straight impact tool and are covered by the plastic shell, so that the plastic shell is easily damaged when placed or toppled, and even internal key components are damaged, thereby affecting the performance and the service life of the electric tool.

Accordingly, there is a need for improvement to overcome the technical problems in the prior art.

Disclosure of Invention

The main that this application will be solved is that the plastic casing of protection straight shape impact tool damages because of placing or toppling over.

For solving above-mentioned technical problem, the application provides a straight impact tool, including the main casing body, set up in the main casing body front end strike the barrel, set up in strike the working head of barrel front end and set up in the main handle of main casing body rear end, the main casing body is assembled to have motor and gear box, it strikes the piston to be equipped with in the barrel to strike, the main casing body is the metalwork with strikeing the barrel, straight impact tool including assemble in the plastic casing of main casing body one side, straight impact tool including assemble in the main casing body and/or strike the barrel in order to avoid the plastic casing receives the metal protection piece of direct striking when empting.

Furthermore, the metal protection piece is arranged between the working head and the plastic shell in the straight direction, and the metal protection piece and the plastic shell are arranged at intervals.

Further, the metal protector is non-rotatably assembled circumferentially to the main housing and/or the impact cylinder.

Further, the metal protector and the impact cylinder are mounted to the main housing by a common fastener.

Further, the straight impact tool includes two plastic housings assembled to both sides of the main housing.

Furthermore, the plastic shell is arranged in a first protection space defined by a connecting line between the working head and the periphery of the metal protection piece.

Furthermore, the straight impact tool comprises a chisel head assembled on the working head, and the plastic shell is arranged in a second protection space surrounded by a connecting line between the tip of the chisel head and the periphery of the metal protection piece.

Further, the metal protector forms the protection space by a continuous or discontinuous periphery.

Further, the straight impact tool further comprises an auxiliary handle which is circumferentially and rotatably hooped on the impact barrel, and the auxiliary handle is arranged between the working head and the metal protection piece in the straight direction.

Further, the main handle has two holding areas perpendicular to the straight direction and for the left and right hands to hold simultaneously.

This application metal protection piece provides the protection for the plastic casing when placing or empting, and then has ensured straight shape impact tool's wholeness ability and life-span.

Drawings

The present application will be more fully understood by reference to the following detailed description of specific embodiments in conjunction with the accompanying drawings. Wherein:

FIG. 1 is a perspective view of a straight impact tool according to the present invention;

FIG. 2 is a schematic exploded view of a straight impact tool of the present application;

FIG. 3 is a front view of the straight impact tool of the present application without the chisel head;

FIG. 4 is a schematic top view of the unassembled chisel head of the straight impact tool of the present application;

FIG. 5 is a front view of the present application showing a construction of a straight impact tool equipped with a chisel head;

FIG. 6 is a schematic top view of the straight impact tool of the present application with the chisel head mounted thereto;

FIG. 7 is a perspective view of the straight impact tool of the present application with the auxiliary handle;

fig. 8 is a left side view schematically showing a structure of a straight impact tool of the present application equipped with another metal protector.

Detailed Description

An embodiment of a straight impact tool according to the present application having a straight direction providing a reciprocating impact will be described in detail below with reference to fig. 1 to 7. In this embodiment, the straight impact tool is a straight electric pick, and includes a main housing 10, an impact cylinder 20 disposed at the front end of the main housing 10, a working head 30 disposed at the front end of the impact cylinder 20, and a main handle 40 disposed at the rear end of the main housing 10, the main housing 10 is assembled with a motor (not shown), a control component 101, and a gear box 102, an impact piston (not shown) is disposed in the impact cylinder 20, the main housing 10 and the impact cylinder 20 are both metal members, and the straight impact tool includes a plastic housing 50 (including a covering in this embodiment) disposed on one side of the main housing 10, the plastic housing 501 of the control component 101 and the covering plastic housing 502 of the gear box 102. In order to ensure the performance of the machine and optimize the operation, the straight impact tool uses a metal shell as a main transmission chiseling part, and the rest parts are coated by a plastic shell 501 to realize light weight and convenient operation. The straight impact tool includes a metal protector 60 assembled to the main housing 10 and/or the impact cylinder 20 to form a protection space of the plastic housing 50. Use its high strength to provide the protection for plastic casing 50, avoid straight shape impact tool directly to injure plastic casing 50 when placing or toppling over, and then indirectly protected the key spare part in the plastic casing 50, also ensured straight shape impact tool's wholeness ability and life-span.

The metal protection member 60 is disposed between the working head 30 and the plastic housing 50 in the straight direction a and spaced apart from the plastic housing 50. The arrangement in the straight direction ensures protection of the plastic housing 50, and the metal protection member 60 and the plastic housing 50 are arranged at intervals to prevent impact during placement or dumping from being directly transmitted to the plastic housing 50. The metal protector 602 and the impact cylinder 20 in this embodiment are mounted to the main housing 10 by a common fastener 70, and thus can be implemented using the existing fastener 70 without additional parts and structures; the metal protector 601 is fixed by clamping the impact cylinder 20 and the main housing 10, both of which are circumferentially non-rotatable. The metal protector 60 is non-rotatably assembled to the main housing 10 and/or the shock barrel 20 in the circumferential direction, thereby preventing slippage during dumping to lose or weaken the protection and ensuring the function of the metal protector.

Referring to fig. 4 to 6, the plastic housing 50 is disposed in a first protection space S1 surrounded by connecting lines (for example, L1, L2, L3, and L4) between the working head 30 and the metal protection member 60, so as to achieve the most basic protection when the chisel head 80 is not inserted. The straight impact tool includes a chisel head 80 assembled to the working head 30, and the plastic housing 50 is disposed in a second protection space S2 surrounded by connecting lines (for example, L1 ', L2', L3 ', and L4') between a tip of the chisel head 80 and a periphery of the metal protection member 60, so as to protect the chisel head 80 after insertion. It can be understood that the protection range of the plastic housing 50 from the first protection space S1 includes the second protection space S2, and the design requirement of the metal protection member 60 from the second protection space S2 is more strict. The metal protector 60 forms the first protection space S1 by a continuous or discontinuous periphery. For example, the periphery of the same metal protection member 60 is continuous in this embodiment, but actually, the metal protection member 60 'shown in fig. 8 may also be discontinuous, as long as several outer end points forming the virtual periphery 601 to protect the plastic housing 50' are provided. Referring to fig. 7, the straight impact tool further includes an auxiliary handle 90 circumferentially and rotatably hooped on the impact barrel, and the auxiliary handle 90 is disposed between the working head 30 and the metal protector 60 in the straight direction a. Unlike the purpose of the metal protector 60, the auxiliary handle 90 needs to be rotationally adjusted in the circumferential direction to obtain a desired angle, and the arrangement relationship of the embodiment in the straight direction a of the auxiliary handle 90 also ensures the installation strength and the operability of the auxiliary handle 90 on the basis of realizing the protection effect of the metal protector 60.

The above detailed description is merely illustrative of the present application and is not intended to be limiting. For example, the straight impact tool in this embodiment includes two plastic housings assembled to two sides of the main housing; in other embodiments, there may be only one plastic housing. In addition, the two metal parts in the embodiment adopt different configurations (the metal protection part 601 is formed by bending steel, and the metal protection part 602 is formed by casting) and installation modes (the metal protection part 601 is fixed by clamping, and the metal protection part 602 is fixed by penetrating bolts); in other embodiments, the metal protector may be constructed and mounted in the same manner. Furthermore, the first protection space S1 or the second protection space S2 formed by the metal protection member 60 in the above embodiment protects the entire 360 degrees of the main housing 10 and the plastic housing 50; in other embodiments, only a partial angle of the plastic housing is required to be protected. In addition, the straight impact tool in this embodiment is a straight electric pick having only an impact function, and in some other embodiments, the straight impact tool may be a straight electric hammer having both impact and rotation functions. In summary, those skilled in the art can make various changes and modifications without departing from the scope of the present application, and therefore all equivalent technical solutions also belong to the scope of the present application, and the protection scope of the present application should be defined by the claims.

Claims

1. The utility model provides a straight impact tool, includes main casing body (10), set up in impact barrel (20) of main casing body (10) front end, set up in work head (30) of impact barrel (20) front end and set up in main casing body (10) rear end main handle (40), main casing body (10) is assembled motor (101) and gear box (102), be equipped with in the impact barrel (20) and strike piston (201), its characterized in that: the main casing body (10) and the impact cylinder body (20) are metal pieces, the straight impact tool comprises a plastic casing (50) assembled on one side of the main casing body (10), and the straight impact tool comprises a metal protection piece (60) assembled on the main casing body (10) and/or the impact cylinder body (20) to form a protection space of the plastic casing (50).

2. The straight impact tool according to claim 1, wherein the metal protector (60) is disposed between the working head (30) and the plastic housing (50) in a straight direction and the metal protector (60) is disposed spaced apart from the plastic housing (50).

3. Straight impact tool according to claim 1, wherein said metal protector (60) is circumferentially non-rotatably assembled to said main housing (10) and/or impact cylinder (20).

4. The straight impact tool according to claim 1, wherein said metal protector (60) and the impact cylinder (20) are mounted to the main housing (10) by means of a common fastener (70).

5. The straight impact tool according to claim 1, wherein said straight impact tool comprises two plastic housings (50) assembled to both sides of said main housing (10).

6. The straight impact tool according to any one of claims 1 to 5, wherein said plastic housing (50) is provided in a first protective space (S1) defined by a line connecting the peripheries of said working head (30) and said metal protector (60).

7. The straight impact tool as set forth in claim 6, wherein said straight impact tool comprises a chisel head (80) assembled to said working head (30), said plastic housing (50) being disposed in a second protective space (S2) defined by a line connecting a tip of said chisel head (80) and a periphery of said metal protector (60).

8. The straight impact tool according to claim 6, wherein said metal protector (60) forms said first protection space (S1) by a continuous or discontinuous periphery.

9. The straight impact tool as claimed in claim 6, further comprising an auxiliary handle (90) circumferentially rotatably hooped to said impact barrel, said auxiliary handle (90) being disposed between said working head (30) and said metal protector (60) in the straight direction.

10. Straight impact tool according to claim 6, characterized in that the main handle (40) has two grip areas (401) perpendicular to the straight direction (A) and intended for the left and right hand to grip simultaneously.