CN2593341Y

CN2593341Y - Safety switch

Info

Publication number: CN2593341Y
Application number: CN02287611U
Authority: CN
Inventors: 查霞红
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2002-12-16
Filing date: 2002-12-16
Publication date: 2003-12-17
Anticipated expiration: 2012-12-16
Also published as: EP1431998A3; EP1431998A2

Abstract

The utility model relates to a safety switch, which comprises an outer shell 9, a handle 13 connected with a pivot of the outer shell 9 by a handle rotating shaft 2, a switch 10 arranged in a cavity of the outer shell 9, a pressing block 8 arranged in the cavity of the outer shell 9, and a safety button 3 arranged on the outer shell 9 in slippage. The safety button 3 is provided with two working positions. The first working position is that the safety button 3 is butted at the side part of a sliding bar 12, and the second working position is that the safety button 3 is separated from the side part of the sliding bar 12. No mater whether the safety button is pressed down or not, the handle can be rotated, while the handle and the safety button can not be damaged.

Description

Safety switch

Technical field

The utility model relates to a kind of safety switch.

Background technology

In the prior art, the safety switch of instrument comprises shell, by arm pivot post and the pivotally connected handle of described shell, be arranged at the switch in the inner chamber of described shell, be arranged at the briquetting in the inner chamber of described shell, be arranged at the safety button on the shell slidably, described briquetting is fixed on the sliding bar, sliding bar is inserted in the gathering sill, this gathering sill is arranged in the inner chamber of shell, the inner handle that stretches in the shell inner cavity of described handle is pressed on the sliding bar, when safety button is not depressed, safety button is pressed on the side of inner handle, make handle thorny handle rotating shaft not rotate, then this moment, switch can not be operated; After safety switch was depressed, safety button broke away from the side of inner handle, and this moment, handle was interrupted and can rotate, and pressed down sliding bar, made switch be operated.This safety button has been owing to hindered the rotation of handle under safe condition, so the operator because the leverage of handle makes inner handle part or safety button partly can be fallen by switch out, makes safety switch be damaged when firmly pulling handle.

Summary of the invention

The purpose of this utility model is to provide a kind of and is in a safe condition down at safety switch, pulls the safety switch that handle can not damage handle and other parts.

The technical solution of the utility model is: a kind of safety switch, comprise shell, by arm pivot post and the pivotally connected handle of described shell, be arranged at the switch in the inner chamber of described shell, be arranged at the briquetting in the inner chamber of described shell, be arranged at the safety button on the shell slidably, described briquetting is fixed on the sliding bar, sliding bar is inserted in the gathering sill, this gathering sill is arranged in the inner chamber of shell, the inner handle that stretches in the shell inner cavity of described handle is pressed on the sliding bar, having between sliding bar in the described gathering sill and the cell wall of gathering sill is enough to the gathering sill gap that makes that sliding bar is swung, described safety button has two service positions at least, first service position is the side portion that safety button is against sliding bar, and second service position is that the side portion of safety button and sliding bar is separated.

The utility model compared with prior art has following advantage:

Because when safety switch was in second service position, inner handle pressed sliding bar, the gap between sliding bar and the gathering sill makes sliding bar produce swing, and sliding bar can't drive briquetting and press to switch.When safety button is in first service position, safety switch blocks sliding bar, make sliding bar to make linear slide and can not swing, sliding bar can drive briquetting and press to switch, make switch be operated, no matter whether safety button is depressed, and handle can rotate, and then can not damage handle and safety button.

Description of drawings

When accompanying drawing 1 is not pressed for safety switch, the structure master's cutaway view of the present utility model during turning handle;

When accompanying drawing 2 is pressed for safety switch, the structure master's cutaway view of the present utility model during turning handle;

When accompanying drawing 3 is not pressed for safety switch, the utility model structure master cutaway view when not having turning handle; Wherein:

1, gathering sill gap; 2, arm pivot post; 3, safety button; 4, sliding bar curved surface; 5, mating surface; 6, inner handle; 7, spring; 8, briquetting; 9, shell; 10, switch; 11, gathering sill gap; 12, sliding bar; 13, handle; 14, safety switch guide;

Embodiment

A kind of safety switch, comprise shell 9, by the pivotally connected handle 13 of arm pivot post 2 and described shell 9, be arranged at the switch 10 in the inner chamber of described shell 9, be arranged at the briquetting 8 in the inner chamber of described shell 9, be arranged at the safety button 3 on the shell 9 slidably, described briquetting 8 is fixed on the sliding bar 12, sliding bar 12 is inserted in the gathering sill, this gathering sill is arranged in the inner chamber of shell 9, the inner handle 6 that stretches in shell 9 inner chambers of described handle 13 is pressed on the sliding bar 12, having between sliding bar 12 in the described gathering sill and the cell wall of gathering sill is enough to the gathering sill gap 1 that makes that sliding bar 12 is swung, 11, described safety button 3 has two service positions at least, first service position is referring to accompanying drawing 2, safety button 3 is against the side portion of sliding bar 12, safety switch 3 plays the effect of sidepiece guide, makes that sliding bar 12 can only moving linearly and can not swing.

Second service position is referring to accompanying drawing 1 and accompanying drawing 3, and safety button 3 is separated with the side portion of sliding bar 12.In accompanying drawing 3, safety switch 3 is not pressed, and handle 13 is not operated the person yet and rotates.In the accompanying drawing 1, safety switch 3 is not depressed, and have gathering sill gap 1 and 11 between sliding bar 12 and the gathering sill this moment, and this gap makes sliding bar 12 to swing as shown in Figure 1, and then the briquetting on the sliding bar 8 can not compress switch 10 down.Safety switch 3 is slidingly connected with shell 9, and a section of safety switch 3 is thicker, and this wider section as shown in Figure 2; One section of safety switch 3 is thinner, and this thinner section is shown in accompanying drawing 1 and accompanying drawing 3, and by pushing or do not push safety switch 3, the safety switch 3 of feasible different sections is near described sliding bars 12.

The inner end of described inner handle 6 is pressed in an end of sliding bar 12, and the inner end of described inner handle 6 is a mating surface 5, and an end of described sliding bar 12 is a sliding bar curved surface 4, and described mating surface 5 contacts with sliding bar curved surface 4.But this curved surface contact position makes sliding bar 12 both can swing also rectilinear motion.

Claims

1, a kind of safety switch, comprise shell [9], by arm pivot post [2] and the pivotally connected handle [13] of described shell [9], be arranged at the switch [10] in the inner chamber of described shell [9], be arranged at the briquetting [8] in the inner chamber of described shell [9], be arranged at the safety button [3] on the shell [9] slidably, described briquetting [8] is fixed on the sliding bar [12], sliding bar [12] is inserted in the gathering sill, this gathering sill is arranged in the inner chamber of shell [9], the inner handle [6] that stretches in shell [9] inner chamber of described handle [13] is pressed on the sliding bar [12], it is characterized in that: having between the sliding bar [12] in the described gathering sill and the cell wall of gathering sill is enough to the gathering sill gap [1 that makes that sliding bar [12] is swung, 11], described safety button [3] has two service positions at least, first service position is the side portion that safety button [3] is against sliding bar [12], and second service position is that the side portion of safety button [3] and sliding bar [12] is separated.

2, safety switch according to claim 1, it is characterized in that: the inner end of described inner handle [6] is pressed in an end of sliding bar [12], the inner end of described inner handle [6] has mating surface [5], one end of described sliding bar [12] is sliding bar curved surface [4], and described mating surface [5] contacts with sliding bar curved surface [4].