CN211805945U

CN211805945U - Electric tool with replaceable working head

Info

Publication number: CN211805945U
Application number: CN202020339868.5U
Authority: CN
Inventors: 陆朝晖
Original assignee: Suzhou Hongji Tools Co ltd
Current assignee: Suzhou Hongji Tools Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-10-30
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses an electric tool with a replaceable working head, which comprises a machine body and a working head, wherein the working head is detachably mounted on the machine body through a rotary clamping mechanism, the rotary clamping mechanism comprises a mounting disc positioned on the machine body and a mounting seat positioned on the working head, the mounting disc is convexly provided with a clamping part, the periphery of the clamping part is provided with an excircle convex rib, and the peripheral edge of the mounting disc is provided with a first clamping groove and a second clamping groove; the mounting pad is equipped with joint mouth and joint groove, the joint mouth inboard is equipped with the protruding muscle of hole, and the joint mouth corresponds the setting with joint portion and forms only matching position, when being located when matching the position joint portion can insert the joint groove and rotate, the protruding muscle of hole is right the protruding muscle of excircle forms the axial backstop, the mounting pad still is equipped with the correspondence the buckle subassembly of first draw-in groove or second draw-in groove, through the change working head that rotatory clamping mechanism can be convenient to realize multiple service function.

Description

Electric tool with replaceable working head

Technical Field

The utility model relates to an electric tool field especially relates to an electric tool of removable working head.

Background

Filing, sanding and polishing are terms of agreement, and refer to a method for achieving standards by physically removing materials and objects which are uneven, uneven in thickness and not in accordance with technological requirements through abrasive cloth, grinding wheels, abrasive paper, scouring pad, non-woven fabric polishing wheels and the like, so that the materials and the objects are smoother, smoother and more consistent in thickness, and the technology is applied to various veneering process production, standard structural member manufacturing, toy handicraft industry, decoration and furniture industry, floor and wallboard building material industry and the like. The grinding or sanding machines include a sander, an abrasive belt machine, a grinder, a polisher, an electric file and the like, and the existing electric file and knife sharpener are different machines generally, so that the functions are single and the use efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric tool of removable working head to realize multiple service function, improve the availability factor.

In order to achieve the above object, the utility model provides a following technical scheme:

an electric tool with a replaceable working head comprises a machine body and the working head, wherein a motor and a power supply assembly are arranged in the machine body, the working head is detachably mounted on the machine body through a rotary clamping mechanism, the rotary clamping mechanism comprises a mounting disc positioned on the machine body and a mounting base positioned on the working head, a clamping portion is convexly arranged on the mounting disc, an outer convex rib is arranged on the periphery of the clamping portion, and a first clamping groove and a second clamping groove are formed in the peripheral edge of the mounting disc; the mount pad is equipped with joint mouth and joint groove, the joint mouth inboard is equipped with the protruding muscle of hole, and the joint mouth corresponds the setting with joint portion and forms only matching position, when being located when matching the position joint portion can insert the joint groove and rotate, the protruding muscle of hole is right the protruding muscle of excircle forms the axial backstop, the mount pad still is equipped with the correspondence the buckle subassembly of first draw-in groove or second draw-in groove.

Furthermore, buckle subassembly includes the pivot, presses down clamp plate and spring, press down the rotatable connection of clamp plate in the pivot, and the pivot both sides form and press down end and location end, the spring supports and pushes up between mount pad and pressing down the end, the location end is equipped with the pothook.

Furthermore, the excircle convex rib and the inner hole convex rib are respectively arranged in a centrosymmetric manner.

Further, the working head comprises a drum wheel, and the drum wheel is connected to an output shaft of the motor.

Further, the motor output shaft is connected to the mounting disc through a bearing.

Furthermore, the first clamping grooves are more than two and are arranged at equal intervals.

The utility model discloses a set up the connection that rotatory joint mechanism made the work head shell dismantle on the organism, change work head that can be convenient according to the demand of difference to realize multiple service function.

Drawings

Fig. 1 is a front view of the mounting plate of the present invention;

fig. 2 is a top view of the mounting plate of the present invention;

fig. 3 is a front view of the mounting base of the present invention;

fig. 4 is a sectional view of the mounting base of the present invention;

fig. 5 is a partial cross-sectional view of a first embodiment of the present invention;

fig. 6 is a schematic view of a first embodiment of the present invention;

fig. 7 is a schematic view of a second embodiment of the present invention;

fig. 8 is a partial sectional view of a second embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-8, the utility model provides an electric tool with replaceable working head, comprising a machine body 7 and a working head 8, wherein a motor (not shown in the figure) and a power supply assembly (not shown in the figure) are arranged in the machine body 7, the motor drives the working head 8 to work, the power supply assembly is used for supplying power to the motor, the working head 8 is detachably mounted on the machine body 7 through a rotary clamping mechanism, the rotary clamping mechanism comprises a mounting disc 1 positioned on the machine body 7 and a mounting seat 2 positioned on the working head 8, specifically, a clamping part 11 is convexly arranged on the mounting disc 1, an outer circular convex rib 14, 14 'is arranged on the periphery of the clamping part 11, a first clamping groove 12 and a second clamping groove 13 are arranged on the periphery of the mounting disc 1, the mounting seat 2 is provided with a clamping interface 21 and a clamping groove 22, an inner hole convex rib 23, 23' is arranged on the inner side, when the mounting plate is located at the matching position, the clamping portion 11 can be inserted into the clamping groove 22 and rotated, that is, the clamping interface 21 and the clamping portion 11 must be angularly adjusted and then assembled, when the clamping portion 11 rotates in the clamping groove 22, the clamping portion and the clamping portion are separated from the matching position, the inner hole ribs 23, 23 'form axial stops for the outer circular ribs 14, 14', and the clamping groove 22 realizes radial limit for the clamping portion 11, so as to realize clamping connection of the mounting plate 1 and the mounting base 2, preferably, the outer circular ribs 14, 14 ', the inner hole ribs 23, 23' are respectively arranged in central symmetry, in order to facilitate circumferential fixation after clamping, the mounting base 2 is further provided with the clamping assembly 3 corresponding to the first clamping groove 12 or the second clamping groove 13, in this embodiment, the clamping assembly 3 includes a rotating shaft 31, a pressing plate 32 and a spring 33, and the pressing plate 32 is rotatably connected to the rotating shaft 31, and a pressing end 321 and a positioning end 322 are formed at two sides of the rotating shaft 31, the spring 33 abuts against between the mounting base 2 and the pressing end 321, and the positioning end 322 is provided with a hook 3221, however, the arrangement manner of the buckle assembly 3 is not limited thereto, for example, by means of inserting and fixing, etc., for facilitating angle adjustment, more than two first slots 12 are provided, and are respectively arranged at equal intervals.

In order to facilitate further understanding, the utility model provides two kinds of electric tool's interchange mode: the electric file and the knife sharpener are driven in a similar mode, namely, the motor drives the drum wheel to drive the abrasive belt to move. The first embodiment is as follows: as shown in fig. 5-6, the present embodiment provides an electric file, through the installation of the mounting disc 1 and the mounting base 2, the working head 8 is connected to the machine body 7, the motor (not shown in the figure) inside the machine body 7 has a motor output shaft 5, the motor output shaft 5 extends inside the mounting disc 1 and the mounting base 2, the motor output shaft 5 is connected to the mounting disc 1 through the bearing 6, the drum 4 is fixedly connected to the motor output shaft 5 through the nut, the motor output shaft 5 and the drum 4 rotate synchronously, after the working head 8 is connected to the machine body 7, the drum 4 is just located inside the mounting base 2, under the elastic force of the spring 33, the hook 3221 is positioned in the first slot 12, thereby realizing circumferential limitation, if the working head 8 needs to be detached, the pressing end 321 hook 3221 is separated from the first slot 12, then the mounting disc 1 and the mounting base 2 are adjusted to the aforementioned matching position, and then the separation can be realized. Example two: as shown in fig. 7-8, the present embodiment provides a knife sharpener, which is different from the first embodiment only in that a hook 3221 is positioned in the second slot 13, and it should be noted that, for convenience of visual adjustment, the first slot 12 and the second slot 13 are both disposed outside the machine body 7 and the working head 8.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electric tool with a replaceable working head comprises a machine body (7) and a working head (8), wherein a motor and a power supply assembly are arranged in the machine body, and the working head is detachably mounted on the machine body through a rotary clamping mechanism; the mount pad is equipped with joint interface (21) and joint groove (22), joint interface inboard is equipped with the protruding muscle of hole, and joint interface (21) correspond with joint portion (11) and set up and form only matching position, when being located when matching the position joint portion can insert joint groove (22) and rotate, the protruding muscle of hole is right the protruding muscle of excircle forms the axial backstop, the mount pad still is equipped with and corresponds buckle subassembly (3) of first draw-in groove or second draw-in groove.

2. The working head replaceable electric tool according to claim 1, wherein the buckle assembly comprises a rotating shaft (31), a pressing plate (32) and a spring (33), the pressing plate is rotatably connected to the rotating shaft, a pressing end (321) and a positioning end (322) are formed on two sides of the rotating shaft, the spring is abutted between the mounting seat (2) and the pressing end (321), and the positioning end is provided with a hook (3221).

3. The working head replaceable electric tool of claim 1 wherein the outer rib and the inner rib are arranged in a central symmetry.

4. A power tool with replaceable working head according to claim 1, characterized in that the working head comprises a drum (4) connected to the motor output shaft (5).

5. A workhead-exchangeable power tool according to claim 4, characterized in that the motor output shaft (5) is connected to the mounting plate (1) by means of a bearing (6).

6. The working head replaceable electric tool according to claim 1, wherein the first engaging groove (12) is provided in two or more, and spaced apart from each other at equal intervals.