CN204497083U

CN204497083U - A kind of electric tool switch with positive self-locking and anti-self-locking

Info

Publication number: CN204497083U
Application number: CN201520189315.5U
Authority: CN
Inventors: 陈极军; 赖小宇
Original assignee: Ningbo Ka Paisi Electronic Science And Technology Co Ltd
Current assignee: Ningbo Ka Paisi Electronic Science And Technology Co Ltd
Priority date: 2015-03-31
Filing date: 2015-03-31
Publication date: 2015-07-22
Anticipated expiration: 2025-03-31

Abstract

The utility model discloses a kind of electric tool switch with positive self-locking and anti-self-locking, comprise drain pan, face-piece, described drain pan and face-piece snap together formation housing mutually, the outside of drain pan is provided with lock button hole, lock button is arranged in lock button hole by catapult, and locking bar adopts Christmas tree pawl shape to be fixedly connected with lock button interference fit, and housing upper face is provided with trigger, trigger contacts with the push rod in housing and connects, and elevating lever and push rod adopt interference fit to be fixedly connected with.The beneficial effects of the utility model are: can realize positive auto-lock function and can realize anti-self locking function again, easy to use, safe and reliable, long service life, mechanical resistant punching press.

Description

A kind of electric tool switch with positive self-locking and anti-self-locking

Technical field

The utility model relates to power switch technical field, particularly relates to a kind of electric tool switch with positive self-locking and anti-self-locking.

Background technology

Many electric tool switchs all with self-locking mechanism, and realize self-locking mechanism and usually need two parts: the elevating lever linked with trigger and the locking bar linked with lock button.

In wait situation, press trigger, because elevating lever can not move under locking bar stops, make power supply be in off-state always; But after pressing lock button, elevating lever can free movement, and can realize conducting and the closedown of switch, this mode is called anti-self-locking;

In wait situation, if press trigger, elevating lever can free movement, and after power supply is connected, pressing lock button locking bar can pin elevating lever and can not move, and make power supply be in conducting state, this mode is called positive self-locking always.

Anti-self-locking, mainly for security consideration, prevents electric tool from occurring false triggering and causes personal injury; Positive self-locking is mainly considered from operation easy to use.

The self-locking mechanism of this type of electric tool switch existing is that positive self-locking mechanism is in the majority, on the elevating lever of plastic cement trigger, normally open a hole, by realizing self-locking in plastic cement lock button locking bar patchhole, as shown in Figure 1, the positive self-locking structure that this plastic cement rod coordinates with hole easily causes self-locking to be lost efficacy, and plastic cement intensity under the impact of temperature and humidity also can weaken, and there is potential safety hazard; Another problem is that the intensity of plastic cement part in anti-self-locking structure can not reach safety requirement sometimes.

Utility model content

For solving the problems of the technologies described above, the utility model provides a kind of electric tool switch with positive self-locking and anti-self-locking, can realize positive auto-lock function and can realize anti-self locking function again, easy to use, safe and reliable, long service life, mechanical resistant punching press.

For solving the problems of the technologies described above, the embodiment of the present application provides a kind of electric tool switch with positive self-locking and anti-self-locking, it is characterized in that: comprise drain pan, face-piece, described drain pan and face-piece snap together formation housing mutually, the outside of drain pan is provided with lock button hole, lock button is arranged in lock button hole by catapult, locking bar adopts Christmas tree pawl shape to be fixedly connected with lock button interference fit, housing upper face is provided with trigger, trigger contacts with the push rod in housing and connects, and elevating lever and push rod adopt interference fit to be fixedly connected with.

As the preferred embodiment of this programme, described elevating lever is hierarchy, comprises anti-self-locking structure layer and positive self-locking structure layer.

As the preferred embodiment of this programme, described elevating lever and locking bar are made by cold-rolled steel material.

The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:

1, multi-functional: this switch has positive self-locking person easy to use simultaneously, there is again anti-self-locking and ensure false triggering safety, the requirement of the required lock of different instrument can be met simultaneously, thus accomplish that a switch is multiplex.All a good thing for switch manufacturers or tool manufacturer.

2, can change flexibly: if time instrument only needs a kind of lock function, the shape of elevating lever can be changed by a change elevating lever five metals mould, just only can be with positive self-locking or only be with anti-self-locking.Original mould changes mould do new mold insert and just can reach, cost drops into little.And all assembly technology of switch all can not change.

3, safe and reliable: because elevating lever and locking bar are all make with cold-rolled steel, anti-self locking function is reliable, easily bears the normal pressure of 400N and not conducting, the holding capacity of the 220N that this power requires much larger than safety.Plastic cement also can be avoided in addition because there is the problem of potential safety hazard by temperature and humidity effect remitted its fury.

4, the lock function life-span is high: because elevating lever and locking bar are all make with cold-rolled steel, and when doing positive self-locking, frictional wear amount is between the two very little, the life test that can be easily locked by up to ten million times.And the lock function after No. ten thousand the lock life-spans of 5-8 that just conventional plastic cement does positive self-locking structure lost efficacy substantially.

5, mechanical resistant is impacted: because elevating lever and locking bar are all make with cold-rolled steel, switch 1 N of can easily be required by safety. and the mechanical shock of rice is tested, and avoids the bad generation that plastic cement self-locking mechanism damages because being hit.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of prior art;

Fig. 2 is the overall structure figure installation diagram of the application;

Fig. 3 is the application's using state one structure chart;

Fig. 4 is the application's using state two structure chart;

Fig. 5 is the application's using state three structure chart;

Fig. 6 is the application's using state four structure chart;

Fig. 7 is the application's using state five structure chart.

In figure, 1, drain pan, 2, face-piece, 3, lock button hole, 4, lock button, 5, catapult, 6, locking bar, 7, trigger, 8, push rod, 9, elevating lever.

Embodiment

In order to better understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.

Embodiment one:

In embodiment one, as shown in Figure 2, provide a kind of electric tool switch with positive self-locking and anti-self-locking, comprise drain pan 1, face-piece 2, described drain pan 1 snaps together formation housing mutually with face-piece 2, the outside of drain pan 1 is provided with lock button hole 3, lock button 4 is arranged in lock button hole 3 by catapult 5, locking bar 6 adopts Christmas tree pawl shape to be fixedly connected with lock button 4 interference fit, housing upper face is provided with trigger 7, trigger 7 contacts with the push rod 8 in housing and connects, and elevating lever 9 adopts interference fit to be fixedly connected with push rod 8.

Wherein, in actual applications, described elevating lever 9 is hierarchy, comprises anti-self-locking structure layer and positive self-locking structure layer, along with locking bar 6 compression distance coordinates trigger 7 to press the degree of depth to realize anti-self-locking and positive auto-lock function.

Wherein, in actual applications, described elevating lever 9 is made by cold-rolled steel material with locking bar 6, anti-self locking function is reliable, easily bear the normal pressure of 400N and not conducting, the holding capacity of the 220N that this power requires much larger than safety, also can avoid plastic cement because there is the problem of potential safety hazard by temperature and humidity effect remitted its fury in addition; When doing positive self-locking, frictional wear amount is between the two very little, can easily by the life test of up to ten million locks.

Here is the operating procedure explanation that the present embodiment realizes two kinds of self-lockings:

1, as Fig. 3, now switch is in off-state one, now presses trigger 7, can not move down under the stop of locking bar 6 with the elevating lever 9 of its interlock, trigger 7 by not going down, so the connection of switch can not be realized.

2, press lock button 4, locking bar 6 is moved right, shape body two as shown in Figure 4, when locking bar 6 moves to certain displacement, locking bar 6 can not stop elevating lever 9, now presses trigger 7, elevating lever 9 and trigger 7 move downward, state three as shown in Figure 5, thus realize the connection of switch.

Above 1,2 liang of steps are embodiments of the function of anti-self-marketing.

3, as Fig. 5, now switch is in on-state three, when then pressing lock button 4 again, locking bar 6 continues to move right, and just reaches position shown in Fig. 6, then unclamps trigger 7, loose unlock button 4 again, just can lock the switch in the state five of connection, as shown in Figure 7, such switch just achieves positive auto-lock function.

4, press trigger 7 more in the situation of figure 7, lock button 4 is under action of reset spring, and switch gets back to initial position step by step.

Above 3,4 liang of steps are embodiments of the function of positive self-marketing.

Technical scheme in above-mentioned the embodiment of the present application, at least there is following technique effect or advantage: 1, multi-functional: this switch has positive self-locking person easy to use simultaneously, there is again anti-self-locking and ensure false triggering safety, the requirement of the required lock of different instrument can be met simultaneously, thus accomplish that a switch is multiplex.All a good thing for switch manufacturers or tool manufacturer.

Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.

Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.

Claims

1. the electric tool switch of the positive self-locking of a band and anti-self-locking, it is characterized in that: comprise drain pan, face-piece, described drain pan and face-piece snap together formation housing mutually, the outside of drain pan is provided with lock button hole, lock button is arranged in lock button hole by catapult, and locking bar adopts Christmas tree pawl shape to be fixedly connected with lock button interference fit, and housing upper face is provided with trigger, trigger contacts with the push rod in housing and connects, and elevating lever and push rod adopt interference fit to be fixedly connected with.

2. a kind of electric tool switch with positive self-locking and anti-self-locking according to claim 1, it is characterized in that, described elevating lever is hierarchy, comprises anti-self-locking structure layer and positive self-locking structure layer.

3. a kind of electric tool switch with positive self-locking and anti-self-locking according to claim 1, it is characterized in that, described elevating lever and locking bar are made by cold-rolled steel material.