CN2821830Y

CN2821830Y - Pulling type self locking switch

Info

Publication number: CN2821830Y
Application number: CN 200520114298
Authority: CN
Inventors: 管国隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-26
Filing date: 2005-07-26
Publication date: 2006-09-27
Anticipated expiration: 2015-07-26

Abstract

The utility model relates to a pulling type self-locking switch, which is composed of a sealed cover of a shell, an inner sleeve, a sliding sleeve seat and a button, wherein the sealed cover is provided with a convex seat and a guide rod which are respectively sheathed with the inner sleeve, the button and the sliding sleeve seat which is provided with a conducting strip. An inserting pin sheet which can be inserted and disengaged is arranged between the button and the inner sleeve, and a fixed spring which can be supported is arranged between the sliding sleeve seat and the inner sleeve. Thus, the utility model not only can control the action of the conducting strip of the sliding sleeve seat to switch off and switch on two switching on points but also can make the button do not act. The power switch has safe insurance function, and the safe efficiency for that the insurance is surely switched off can be achieved.

Description

Pull-type self-lock switch

Affiliated technical field

The utility model relates to mains switch, relates in particular to a kind of mains switch of guaranteeing insurance function under the off-position that has.

Background technology

Existing mains switch, cut-off button all are the functions of simple may command energising, outage.More specifically, can artificially operate energising, the outage that makes arbitrarily, yet, when need definitely cut off the power supply, for example: the machine of maintenance, maintenance power supply, have other people accidentally, do not know and switch become "on" position, cause maintenance, maintenance person to cause unexpected injury; In addition, prior art be guarantee off-position, must cut off the power supply at the master switch place, cause the inconvenience of other place's electricity consumption, or painstakingly hang warning sign warning, yet, be have that warning sign drops, other people cause the possibility of energising accidentally, or notice that painstakingly other people do not switch on, and are extremely inconvenient in fact.

The utility model content

For overcoming above deficiency, the utility model provides a kind of mains switch with insurance function of guaranteeing off-position, it comprises: be set as that the housing capping has protruding seat and cover, button in the cover group, capping also is provided with guide rod for assembling sleeve base conducting strip, is provided with the top between sleeve base and interior cover trace and decides spring, therefore, but overlap in the interlock by pressing button, and then make the top decide spring change angle, and must make the action of sleeve base conducting strip, reach the purpose of control energising, outage.

Described button be provided with slot, in be arranged with draw-in groove; and establish a plug blades and plug together; when plugging together, can make in the button interlock and overlap; when detaching plug blades; press button and also can't make interior cover action; therefore, can guarantee that the sleeve base conducting strip does not make the energising of two conductiving points, reach the safe effect that (maintenance, maintenance) will not switch on when needing outage.

Description of drawings

Fig. 1 is the utility model side view cutaway drawing.

Fig. 2 is that the utility model plugs together the plug blades side view of the state.

Fig. 3 is that the utility model is overlooked and analysed and observe off-position figure.

Fig. 4 is that the utility model "on" position is overlooked and analysed and observe and (a) partial side view.

The primary clustering illustration:

1 housing, 13 conducting strips, 30 buttons

2, spring 31 perforation are decided on 3 energisings point, 14 tops

Cover 32 connecting rods in 4 cappings 20

10 protruding seat 21,310 grooves 33 slots

11 guide rods, 22 traces, 34 plug blades

12 sleeve bases, 23 draw-in grooves

Embodiment

See also Fig. 1,2,3,4, it is housing 1 capping 4 that has

energising point

2,3 in, its capping 4 is provided with the protruding seat 10 and the inside guide rod 11 of evagination, guide rod 11 cover groups one have the sleeve base 12 of conducting strip 13, must make its conducting strip 13

contact energising points

2,3 energisings by 12 actions of control sleeve base, break away from 2,3 outages of energising point; Wherein, this capping 4 protruding seat 10 cover groups one have the button 30 of perforation 31, and button 30 is provided with groove 310 for cover 20 in sheathed, and in the groove 310 of button 30 and be provided with connecting rod 32, the periphery of button 30 is provided with the slot 33 that runs through; Should interiorly overlap 20, being set as the connecting rod 32 with the groove 21 confession buttons 30 that run through penetrates, connecting rod 32 penetrates, 32 fitted bolts of connecting rod form button 30 can not break away from (as Fig. 1) with interior cover 20 binding one, but button 30 slidably, in cover 20 and be provided with two traces 22 and pass capping 4,22 fitted bolts of trace and in cover 20 link one with capping 4 and can not break away from (as Fig. 3), but interior cover 20 slidably, 12 of its two trace 22 and sleeve bases, be provided with the top and decide spring 14, can change the angle that spring 14 is decided on two tops when cover 20 moves in forming, and then start sleeve base 12; Should interior cover 20 peripheries be provided with draw-in groove 23, draw-in groove 23 is corresponding to the slot 33 of button 30, and establish a plug blades 34 and must plug together in button 30 slots 33, interior cover 20 draw-in grooves 23, link button 30 and interior cover 20 by plug blades 34 when plugging together, but interior cover 20 of interlock and sleeve base 12 when making button 30 actions, when plug blades 34 breaks away from,, button 30 can not overlap 20 in the interlock though can moving, and then can not start sleeve base 12.

Normal control outage of the present utility model, "on" position, as shown in Figure 2, plug blades 34 is plugged together in button 30 slots 33, interior cover 20 slots 33, formation makes button 30, interior cover 20 link one, therefore get pressing button 30 (as shown in Figure 3) and overlap 20 in the interlock, be low inside and high outside even the moving partially rake angle of spring 14 is decided on two traces, 22 two tops of interior cover 20, spring 14 is decided on the top can make sleeve base 12 conducting strips 13 be the off-position (shown in Fig. 2,3) of disengaging (rising) two conductiving points 2,3.Pulling button 30 (as shown in Figure 4) when desire is switched on,, plug blades 34 gets cover 20 (shown in Figure 2) in the pulling synchronously by linking, cover 20 two traces 22 also move (rising) in this moment, be high outside and low outside and must make two tops decide moving partially another rake angle of spring 14, spring 14 decide on the top can be made sleeve base 12 conducting strips 13 be decline to contact "on" position to two

conductiving points

2,3 and (Fig. 4, reach Fig. 4 a).Because of pushing up the rake angle of deciding spring 14 and have elastic force, and can make sleeve base 12 keep the location, can keep outage, "on" position.

Outage insurance function of the present utility model, as shown in Figure 1, detach plug blades 34 during off-position, button 30, interior cover 20 are not linked, therefore, even spur button 30 (shown in Fig. 1 dotted line) again, also can only make button 30 slips and can't overlap 20 in the interlock, so can keep not start sleeve base 12, and must guarantee off-position.In other words, when maintenance, when maintenance person desires to guarantee off-position, only need detach plug blades 34 carries it, other people do not have the plug blades 34 of same specification, even push, spur button 30, all can't make conducting strip 13 actions, and can guarantee the safe condition that cuts off the power supply, in like manner, when "on" position, detach plug blades 34, also can guarantee "on" position and not by wrong diagnosis.

As shown in the above description, plug blades 34 of the present utility model, button 30 slots 33, interior cover 20 draw-in grooves 23 are just like the function that forms a key lock.

Claims

1. pull-type self-lock switch, comprise the housing capping that has the energising point in, its capping is provided with the protruding seat and the inside guide rod of evagination, leader casing group one has the sleeve base of conducting strip, it is characterized in that: the protruding cover for seat group one of this capping has the button of perforation, button is provided with groove and overlaps in sheathed one, and the periphery of button is provided with the slot that runs through; Should interior cover periphery be provided with draw-in groove, draw-in groove is provided with one and plugs together in the plug blades of button slot, interior cover draw-in groove.

2. pull-type according to claim 1 self-lock switch, it is characterized in that, be provided with connecting rod in the groove of described button, in be arranged with and run through the groove that the connecting rod for button penetrates, in be arranged with two traces and pass capping, be provided with the top between this two trace and sleeve base and decide spring.