CN101206967A - Trigger construction of power tool - Google Patents

Abstract

The invention relates to a trigger structure of an electric tool. The trigger structure is provided with a base sea, a pressing button is arranged at the front part of the base seat, a plurality of conducting strips are arranged in the base seat, two contact points are arranged at the both ends of each conducting strip, a through hole is arranged on the base seat, a controlling circuit board is arranged in the base seat, a plurality of conducting copper foils are arranged on the controlling circuit board; wherein, a plurality of slantways parallel gaps are arranged in the conducting copper foils, the contact points of the conducting strips are stuck on the conducting copper foils, a splicing seat is arranged on the controlling circuit board, the splicing base is a through hole penetrating through the base seat, a cover body is covered on the base seat to position the controlling circuit board in the base seat, therefore, the two contact points of the conducting strip and the conducting copper foils in the controlling circuit board can perform the continuous current conduction and can not generate the discontinuous current conduction when the trigger is pressed.

Description

The trigger mechanism of electric tool

Technical field

The present invention relates to a kind of trigger mechanism of electric tool, be meant especially a kind of when pressing trigger squeeze, but the conductive copper platinum continuous conduction on its conducting strip and the control circuit board can not produce at interval outage.

Background technology

General electric tool 1, see also Fig. 1～shown in Figure 3, mainly be to be provided with a swivel joint 11 in the place ahead of body 10, below body 10, be provided with a handle 12, the place ahead of described handle 12 is provided with a trigger 13, described trigger 13 is to be provided with a pedestal 130, be provided with one by press button 131 in the place ahead of pedestal 130, in pedestal 130, be embedded with three conducting strips 132, the two ends of described conducting strip 132 bend respectively and are provided with a contact point 133, on pedestal 130, be provided with an open-work 134, one control circuit board 14 is provided in a side of in the pedestal 130, described control circuit board 14 is provided with several pieces conductive copper platinum 140, wherein vertical parallel is provided with several gaps 141 on the conductive copper platinum 140, the contact point 133 of conducting strip 132 is to paste to touch on conductive copper platinum 140, on control circuit board 14, be provided with a plug socket 142, described plug socket 142 is the open-works 134 that are arranged in pedestal 130, one lid 15 is that lid is located on the pedestal 130, control circuit board 14 is positioned in the pedestal 130, so, described by means of pushing by 140 contacts of conductive copper platinum and the generation slippage of the conducting strip 132 in the press button 131 drive pedestals 130 on control circuit board 14, in order to swivel joint 11 rotations of startup electric tool 1.Yet, the gap 141 of the conductive copper platinum 140 on the existing control circuit board 14 is to be made as parallel interval to be provided with, when pushing, drive conducting strip 132 on conductive copper platinum 140 during slippage by press button 131, when conducting strip 132 is positioned at gap 141 on the conductive copper platinum 140, then can produce off-position, conducting strip 132 then produces conduction state when touching the position of conductive copper platinum 140, if push described speed by press button 131 when slow, the rotation of its swivel joint 11 can form desultory rotary state, makes the use of electric tool 1 can't be smooth and easy.Therefore, the inventor is to concentrate on studies, improve because the trigger mechanism of existing electric tool has as above-mentioned disappearance, is initiated out the present invention then.

Summary of the invention

Main purpose of the present invention is to provide a kind of when pressing trigger squeeze, but the conductive copper platinum continuous conduction on its conducting strip and the control circuit board can not produce the trigger mechanism of the electric tool of outage at interval.

For achieving the above object, the technical solution used in the present invention is:

A kind of trigger mechanism of electric tool, it is provided with pedestal, be provided with by press button in the place ahead of pedestal, in pedestal, be provided with several pieces conducting strips, on pedestal, be provided with open-work, in pedestal, be provided with a control circuit board, described control circuit board is provided with several pieces conductive copper platinum, wherein a conductive copper platinum is provided with several parallel gaps, the contact point of conducting strip is to paste to touch on conductive copper platinum, is provided with plug socket on control circuit board, and described plug socket is the open-work that is arranged in pedestal, one lid is that lid is located on the pedestal, and control circuit board is positioned in the pedestal;

It is characterized in that: the two ends of conducting strip respectively are provided with two contact points, and the gap of the conductive copper platinum on the control circuit board is oblique setting.

Compared with prior art, the beneficial effect that the present invention has is: when pushing by press button, drive conducting strip on conductive copper platinum during slippage, when the wherein contact point of conducting strip one end is positioned at gap on the conductive copper platinum, another contact point of the described end of conducting strip can paste and touch on conductive copper platinum, make conducting strip on conductive copper platinum during slippage, all have and be in contact with one another and formed conduction state continuously, so not having the situation of outage at interval produces, even push by the speed of press button when slow, the still continuable rotation of the rotation of the swivel joint of its electric tool makes the use of electric tool be able to very smooth and easy.

Description of drawings

Shown in Figure 1 is the stereo appearance figure of electric tool;

Shown in Figure 2 is the three-dimensional exploded view of existing trigger mechanism;

Shown in Figure 3 is the schematic diagram that existing conducting strip contacts with control circuit board;

Shown in Figure 4 is the three-dimensional combination figure of embodiment of the invention trigger mechanism;

Shown in Figure 5 is the three-dimensional exploded view of embodiment of the invention trigger mechanism;

Shown in Figure 6 is the plane graph of embodiment of the invention control circuit board;

Shown in Figure 7 is the schematic diagram that embodiment of the invention conducting strip contacts with control circuit board.

Description of reference numerals: 1-electric tool; The 10-body; The 11-swivel joint; The 12-handle; The 13-trigger; The 130-pedestal; 131-presses press button; The 132-conducting strip; The 133-contact point; The 134-open-work; The 14-control circuit board; 140-conductive copper platinum; The 141-gap; The 142-plug socket; The 15-lid; The 2-trigger; The 20-pedestal; 21-presses press button; The 22-conducting strip; The 23-contact point; 23 '-contact point; The 24-open-work; The 25-control circuit board; 26-conductive copper platinum; The 27-gap; The 28-plug socket; The 29-lid.

Embodiment

About the present invention reaches above-mentioned application target and effect, the technological means that is adopted is enumerated preferable feasible embodiment now, cooperate simultaneously graphic shown in, details are as follows:

Embodiments of the invention, see also Fig. 4～shown in Figure 6, trigger 2 mainly is to be provided with a pedestal 20, be provided with one by press button 21 in the place ahead of pedestal 20, in pedestal 20, be embedded with three conducting strips 22, the two ends of described conducting strip 22 are to bend respectively to be provided with two contact points 23,23 ', on pedestal 20, be provided with an open-work 24, one control circuit board 25 is provided in a side of in the pedestal 20, described control circuit board 25 is provided with several pieces conductive copper platinum 26, wherein a conductive copper platinum 26 is provided with the gap 27 of several oblique parallels, the contact point 23 of conducting strip 22,23 ' is to paste to touch on conductive copper platinum 26, on control circuit board 25, be provided with a plug socket 28, described plug socket 28 is that open-work 24, one lids 29 that are arranged in pedestal 20 are that lid is located on the pedestal 20, and control circuit board 25 is positioned in the pedestal 20, so, be the trigger mechanism of an electric tool.

During use, see also Fig. 6, shown in Figure 7, rely on the conductive copper platinum 26 of conducting strip 22 on control circuit board 25 that drives in the pedestal 20 by press button 21 of pushing electric tool to contact and produce slippage, rotate in order to the swivel joint that starts electric tool; The present invention is respectively to be provided with two contact points 23 respectively with the two ends of conducting strip 22,23 ', and the gap 27 of the conductive copper platinum 26 on the control circuit board 25 is made as the interval setting of oblique parallel, when pushing, drive conducting strip 22 on conductive copper platinum 26 during slippage by press button 21, when the wherein contact point 23 of conducting strip 22 1 ends is positioned at gap 27 on the conductive copper platinum 26, another contact point 23 ' of its conducting strip 22 described ends then can paste and touch on conductive copper platinum 26, and when another contact point 23 ' is positioned at the position in gap 27,23 subsides of its contact point are touched on conductive copper platinum 26, make conducting strip 22 on conductive copper platinum 26 during slippage, all have and be in contact with one another and formed conduction state continuously, so not having the situation of outage at interval produces, even push by the speed of press button 21 when slow, the still continuable rotation of the rotation of the swivel joint of its electric tool makes the use of electric tool be able to very smooth and easy.

More than explanation is just illustrative for the purpose of the present invention, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present invention.

Claims (1)

1. the trigger mechanism of an electric tool, it is provided with pedestal, be provided with by press button in the place ahead of pedestal, in pedestal, be provided with several pieces conducting strips, on pedestal, be provided with open-work, in pedestal, be provided with a control circuit board, described control circuit board is provided with several pieces conductive copper platinum, wherein a conductive copper platinum is provided with several parallel gaps, the contact point of conducting strip is to paste to touch on conductive copper platinum, is provided with plug socket on control circuit board, and described plug socket is the open-work that is arranged in pedestal, one lid is that lid is located on the pedestal, and control circuit board is positioned in the pedestal;

It is characterized in that: the two ends of conducting strip respectively are provided with two contact points, and the gap of the conductive copper platinum on the control circuit board is oblique setting.

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