CN220945220U - Hammering tool - Google Patents

Abstract

The application relates to a hammering tool, which comprises the following technical scheme: a housing; a motor accommodated in the housing; one end of the handle is hinged with the shell; one end of the damping component is elastically connected with the handle, and the other end of the damping component is movably connected with the shell; thereby achieving the effect of reducing the vibration transmitted to the handle by the shell and reducing the damage to operators.

Description

Hammering tool

Technical Field

The application relates to the technical field of electric tools, in particular to a hammering tool.

Background

The electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism, and the electric rotary hammer drill can drill holes on hard materials such as concrete, bricks, stones and the like by utilizing the principle of piston motion and using compressed gas to impact the drill bit without needing great force of hands. The electric hammer can open holes in hard materials such as concrete, bricks, stones and the like, and the efficiency of the holes is higher.

In the related art, chinese patent with publication number CN2269464Y discloses an electric hammer, belonging to the class of electric tools; consists of a frame, a shell, a handle, a switch, a chuck, a handle and an impact rod assembly, and a motor-driven piston cylinder impact mechanism; the motor shaft end adopts bevel gear transmission, the transverse bevel gear shaft is a gear shaft, the gear shaft is meshed with a bevel gear, the right end of the bevel gear is provided with an internal spline and an external spline, a transmission shaft is inserted in the bevel gear, a shifting fork, a short spline and a gear section are arranged on the shaft, and a swinging bearing of the internal spline is arranged on the transmission shaft; the upper end of the swing rod is hinged to the right end of the cylinder; the cylinder has free piston, the outside is covered with rotary sleeve, the left end of sleeve is equipped with chuck and impact bar assembly, the sleeve is covered with spring and clutch gear, the gear is meshed with transmission shaft gear.

However, most of the current electric hammers are not provided with a good damping structure, but the handle and the shell are directly connected through bolts, so that reaction force generated by hammering is easily caused to directly act on a human body in the working process of the electric hammer, and the operator is easily damaged.

Disclosure of utility model

Based on this, it is necessary to provide a hammering tool against the problem of vibration of the hammer handle.

In order to solve the technical problems, the application is realized as follows:

In one embodiment, there is provided a peening tool comprising:

a housing;

A motor accommodated in the housing;

one end of the handle is hinged with the shell;

and one end of the damping component is elastically connected with the handle, and the other end of the damping component is movably connected with the shell.

Optionally, the damping component includes moving part and damping part, the shell includes first casing, the one end of moving part connect in on the first casing, the moving part insert establish and slide connect in the handle, be connected with the restriction piece that restricts moving part break away from the handle portion on the handle, the inside support cavity that is equipped with of handle, damping part connect in the moving part keep away from the one end of first casing and be located the support cavity.

Optionally, the movable part is provided with a strip hole, and the limiting part is slidingly connected in the strip hole.

Optionally, a support member is disposed at one end of the movable member away from the first head shell, the shock absorbing member is a spring, and one end of the spring is sleeved on the support member or the support member is sleeved on the spring.

Optionally, the first casing is equipped with the fixed part, the fixed part is equipped with the fixed orifices, the one end that the moving part is close to the first casing is equipped with the fixed slot that supplies the fixed part to insert and establishes, fixed through-hole has been seted up to the fixed slot both sides, fixed through-hole with insert jointly in the fixed orifices and be equipped with the elastic axis.

Optionally, the fixing hole is in clearance fit with the elastic shaft, a damping ring is arranged in the fixing hole, and the damping ring is in interference fit with the elastic shaft; the side wall of the fixing hole is provided with an embedded groove, the damping ring is placed in the embedded groove, and the inner diameter of the fixing through hole is smaller than the outer diameter of the embedded groove.

Optionally, the housing includes a second shell, the second shell is provided with a supporting part, the handle is provided with a rotating part, and when the handle and the second shell are installed, the rotating part is inserted into the supporting part.

Optionally, the rotating part is in clearance fit with the supporting part, a buffer block is arranged between the rotating part and the supporting part, and the rotating part is inserted into the buffer block.

Optionally, the handle is provided with an abutment portion at a root of the rotating portion, and when the rotating portion is inserted into the supporting portion, the abutment portion restricts the buffer block from being separated from the supporting portion.

Optionally, a step groove is formed on the side wall of the supporting part, and a positioning block capable of being embedded into the step groove is arranged at the end part of the buffer block.

In the embodiment of the application, the vibration generated by hinging can be buffered through the damping component, so that the vibration transmitted from the shell to the handle is lightened, and the influence on an operator is lightened.

Drawings

FIG. 1 is a schematic view of a hammering tool housing according to an embodiment of the application;

FIG. 2 is a schematic view of the structure of a shock absorbing assembly of a peening tool according to one embodiment of the present application;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

Fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 1.

Description of the drawings: 1. a housing; 11. a first housing; 111. a fixing part; 1111. a fixing hole; 1112. a damping ring; 1113. a recessed groove; 12. a second housing; 121. a support part; 1211. a step groove; 13. a third housing; 2. a handle; 21. a support chamber; 22. a restriction member; 23. a rotating part; 231. an abutting portion; 3. a shock absorbing assembly; 31. a movable member; 311. a strip hole; 312. a support; 313. a fixing groove; 3131. a fixing through hole; 32. a shock absorbing member; 4. an elastic shaft; 5. a buffer block; 51. and (5) positioning blocks.

Description of the embodiments

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 is a schematic structural view of a hammering tool casing according to an embodiment of the present application, and the hammering tool according to an embodiment of the present application includes a casing 1, a motor, a handle 2, and a damper assembly 3, wherein the casing 1 may include a first casing 11, a second casing 12, and a third casing 13, and the motor is accommodated in the second casing 12; the second housing 12 is located at the bottom of the first housing 11, the third housing 13 is wrapped outside the first housing 11, the second housing 12 and the third housing 13 may be made of materials such as resin or plastic, and the first housing 11 may be made of aluminum alloy or other metal materials. The second housing 12 may be a half-shell structure fixed by bolts, and the first housing 11 and the second housing 12 may be fixed by connection. The handle 2 may be constructed in a U-shape, one end of the handle 2 is hinged to the second housing 12, the other end is elastically connected to the damper 3, the damper 3 is movable relative to the handle 2, and the other end of the damper 3 is movably connected to the first housing 11, so that vibration transmitted from the housing 1 to the handle 2 is relieved by the damper 3.

Referring to fig. 1 and 2, fig. 2 is a schematic view showing a structure of a damper assembly of a hammering tool according to an embodiment of the present application, the damper assembly 3 includes a movable member 31 and a damper member 32, the handle 2 may be formed by fixing two half-shells by bolts, a supporting chamber 21 may be formed inside the handle 2, and one end of the damper member 32 abuts against an inner wall of the supporting chamber 21, and the other end may be connected to the movable member 31. The end of the movable member 31 is inserted into the handle 2 and slidably connected with respect to the handle 2, and the movable member 31 compresses the shock absorbing member 32 during sliding of the handle 2, thereby achieving shock absorption.

In some preferred embodiments, the movable member 31 is provided with a bar hole 311, the bar hole 311 may extend along the length direction of the movable member 31, the handle 2 is connected with a limiting member 22 in a threaded manner, and the limiting member 22 may be inserted into the bar hole 311 along a direction perpendicular to the length direction of the bar hole 311, so long as the movable member 31 is limited to be separated from the handle 2 and the movable member 31 may slide in the bar hole 311. Preferably, the restricting member 22 may be a standard member such as a bolt, or may be a non-standard member specifically designed, so long as the movable member 31 is restricted from being separated from the handle 2.

In some preferred embodiments, the end of the movable member 31 near the shock absorbing member 32 may be formed with a supporting member 312, the shock absorbing member 32 may be a spring, and the end of the spring, which is far away from the inner wall of the supporting chamber 21, may be sleeved on the supporting member 312, or the supporting member 312 may be sleeved on the spring. When the spring is sleeved on the supporting piece 312, the supporting piece 312 may be a block integrally formed on the movable piece 31, or a cross protrusion, or a spline, and when the supporting piece 312 is sleeved on the spring, the supporting piece 312 may be a supporting tube integrally formed on the movable piece 31. Of course, those skilled in the art will appreciate that the support member 312 may take other forms as long as sufficient support is provided for the shock absorbing member 32.

Referring to fig. 2 and 3, fig. 3 is a schematic cross-sectional view illustrating a structure of the fixing portion 111 in an embodiment of the present application, in some preferred embodiments, a fixing portion 111 may be formed on a side of the first housing 11 facing the handle 2, and a fixing hole 1111 may be formed in the fixing portion 111, and the fixing hole 1111 may be a through hole penetrating in a thickness direction of the fixing portion 111. The movable member 31 may be formed at one end facing the fixing portion 111 with a fixing groove 313, and the fixing portion 111 may be inserted into the fixing groove 313. The fixing through holes 3131 may be formed on both side walls of the fixing groove 313 to be concentric with the fixing hole 1111, and the elastic shaft 4 may be inserted into the fixing through holes 3131 and the fixing hole 1111 together, and the elastic shaft 4 may have elasticity, for example, an elastic pin, thereby playing a role of buffering vibration.

In some preferred embodiments, the fixing hole 1111 may be in clearance fit with the elastic shaft 4, and a damper ring 1112 may be disposed in the fixing hole 1111, and the damper ring 1112 may be made of a damping material such as rubber, etc. The inner diameter of the damping ring 1112 is in interference fit with the elastic shaft 4, the outer diameter of the damping ring 1112 can be matched with the fixing hole 1111, or can be in clearance fit or interference fit, and when the first shell 11 vibrates, the damping ring 1112 is extruded first to damp.

In some preferred embodiments, both sides of the fixing hole 1111 may be formed with a fitting groove 1113, the fitting groove 1113 may be disposed concentric with the fixing hole 1111 and may be a blind hole, the size of the fitting groove 1113 is larger than that of the fixing hole 1111, the cross section of the fixing hole 1111 may be circular, the cross section of the fitting groove 1113 may also be circular, the damper ring 1112 may be placed in the fitting groove 1113, and the inner diameter of the fixing through hole 3131 may be smaller than the outer diameter of the fitting groove 1113 to shield the damper ring 1112, limiting the damper ring 1112 in the fitting groove 1113.

Referring to fig. 2 and 4, fig. 4 shows a schematic cross-sectional view of the structure of the turning part 23 in an embodiment of the present application, and in some preferred embodiments, the handle 2 is hinged to the second housing 12, and in particular, the second housing 12 may be formed by bolting two half-shells as well. The second housing 12 may have a support portion 121 formed on both half-shells, and the support portion 121 may be a cylindrical tube integrally formed with the half-shells of the second housing 12. The handle 2 may be formed with a rotating portion 23, the rotating portion 23 may be an approximately cylindrical shaft, and for saving materials, the rotating portion 23 may be a spline shaft; the rotation part 23 may be inserted into the support part 121 and may rotate with a central axis of the support part 121, thereby converting the shock transmitted to the handle 2 from the housing 1 into the approximate sliding motion of the movable member 31 with respect to the handle 2 while restricting the handle 2 from being separated from the second housing 12.

In some preferred embodiments, the rotating portion 23 and the supporting portion 121 are in clearance fit, and a buffer block 5 may be interposed between the rotating portion 23 and the supporting portion 121, and the buffer block 5 may be made of a damping material such as rubber, so that vibration transmitted to the rotating portion 23 from the supporting portion 121 can be buffered by deformation of the buffer block 5 to some extent. Preferably, the buffer block 5 may have a ring shape, and the rotation portion 23 is inserted into the buffer block 5 and then inserted into the support portion 121, so that buffering can be performed at all the circumferences of the rotation portion 23.

In some preferred embodiments, the root of the rotating portion 23 may be integrally formed with an abutment portion 231, and the outer diameter of the abutment portion 231 may be larger than the outer diameter of the rotating portion 23, and when the rotating portion 23 is inserted into the supporting portion 121, the abutment portion 231 may close the top of the supporting portion 121, thereby restricting the buffer block 5 from being pushed out of the supporting portion 121.

In some preferred embodiments, the side wall of the support portion 121 may be formed with a stepped groove 1211, and the stepped groove 1211 is two holes concentrically disposed but different in diameter, that is, another expanded diameter groove is provided at the inner hole open end of the support portion 121 to form the stepped groove 1211. One end of the buffer block 5 near the abutting portion 231 may be integrally formed with a positioning block 51 concentrically disposed with the buffer block 5 and having an outer diameter larger than the buffer block 5, the positioning block 51 is embedded in the step groove 1211, the rotating portion 23 is inserted into the positioning block 51 and the buffer block 5, and the abutting portion 231 may abut against the positioning block 51, thereby restricting the position of the positioning block 51.

In some preferred embodiments, the positioning block 51 may be separately provided, that is, the side wall of the supporting portion 121 does not have the step groove 1211, the positioning block 51 abuts against the end wall of the supporting portion 121, and the abutting portion 231 abuts against the end wall of the buffer block 5, thereby completing the fixing of the buffer block 5.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (9)

1. A peening tool comprising:

a housing;

A motor accommodated in the housing;

one end of the handle is hinged with the shell;

one end of the damping component is elastically connected with the handle, and the other end of the damping component is movably connected with the shell;

The damping component comprises a movable part and a damping part, the shell comprises a first shell, one end of the movable part is connected to the first shell, the movable part is inserted and glidingly connected to the handle, a limiting part for limiting the movable part to be separated from the handle part is connected to the handle, a supporting cavity is formed in the handle, and the damping part is connected to the movable part, far away from one end of the first shell and located in the supporting cavity.

2. The hammering tool according to claim 1, wherein a bar hole is formed on said movable member, and said restriction member is slidably connected to said bar hole.

3. A hammering tool according to claim 1, wherein a support member is arranged at an end of said movable member remote from the first head casing, said shock absorbing member is a spring, and one end of said spring is sleeved on the support member or said support member is sleeved on the spring.

4. The hammering tool according to claim 1, wherein said first housing is provided with a fixing part, said fixing part is provided with a fixing hole, one end of said movable member close to said first housing is provided with a fixing groove for inserting said fixing part, both sides of said fixing groove are provided with fixing through holes, and said fixing through holes and said fixing hole are inserted with an elastic shaft.

5. The hammering tool of claim 4, wherein said fixing hole is in clearance fit with the elastic shaft, and a damper ring is disposed in said fixing hole, and said damper ring is in interference fit with the elastic shaft; the side wall of the fixing hole is provided with an embedded groove, the damping ring is placed in the embedded groove, and the inner diameter of the fixing through hole is smaller than the outer diameter of the embedded groove.

6. The hammering tool according to claim 1, wherein said housing includes a second casing provided with a supporting portion, said handle is provided with a rotating portion, and said rotating portion is inserted into said supporting portion when said handle is mounted with said second casing.

7. The hammering tool according to claim 6, wherein said rotating part is in clearance fit with the supporting part, a buffer block is provided between said rotating part and the supporting part, and said rotating part is inserted in the buffer block.

8. The hammering tool according to claim 7, wherein the handle is provided with an abutment portion at a root of the rotation portion, the abutment portion restricting the buffer block from coming out of the support portion when the rotation portion is inserted into the support portion.

9. The hammering tool of claim 7, wherein a step groove is formed on a side wall of said supporting part, and said buffer block end is provided with a positioning block which can be inserted into the step groove.