CN2430775Y

CN2430775Y - Contact isolated button switch

Info

Publication number: CN2430775Y
Application number: CN 00241480
Authority: CN
Inventors: 艾小兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-23
Filing date: 2000-07-23
Publication date: 2001-05-16
Anticipated expiration: 2010-07-23

Abstract

The utility model relates to a button switch capable of completely isolating a moving and a static contacts from external environment. An insulating plate is used as a mounting base for a moving and a static contacts, wherein, the mounted moving and the static contacts together with the insulating base are inserted into an insulating casing, and then both ends of the insulating casing are sealed by insulating blocks; seaming can be enclosed by sealing fillers, and a touching mouth of the insulating casing is sealed by a rubber cap, so that the purpose of completely isolating the moving and the static contacts from the external environment can be obtained.

Description

The isolated push-button switch in contact

The utility model relates to a kind of button switch, especially its contact and the external environment condition push-button switch of isolating fully.

At present, known push-button switch by moving contact, fixed contact, holddown spring, strut with spring, touch pole and insulation crust etc. and form.Because its structure is not airtight, under the strong environment of some more abominable corrosivity, its dynamic and static contact is easy to be corroded and causes loose contact to cause the accident.

The purpose of this utility model provides a kind of push-button switch, and its contact and external environment condition are isolated fully.

The purpose of this utility model is achieved in that and adopts the mounting seat of collets as dynamic and static contact, mounted dynamic and static contact and collets are inserted in the insulation crust together, again the two ends of insulation crust are sealed with collets, and shut with airtight and watertight padding at the seam crossing of collets and insulation crust, shake-up mouth on the insulation crust seals with a rubber cap, thereby reaches the purpose that dynamic and static contact and external environment condition are isolated fully.

Owing to adopt such scheme, push contact and external environment condition are isolated fully, in than rugged environment, avoid corrosion and damage, and this scenario-frame is simple.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is that dynamic and static contact and insulation touch the installation diagram of slide block on insulator foot.

Fig. 2 is an overall assembling section of the present utility model.

Fig. 3 is the insulation crust vertical view.

Fig. 4 is an insulation crust A-A profile.

Fig. 5 is the insulation crust front view.

Fig. 6 is the vertical view of insulator foot.

Fig. 7 is the left view of insulator foot.

Fig. 8 is the B-B profile of insulator foot.

Fig. 9 is an insulation sides shrouding front view.

Figure 10 is a conduction fixed contact front view.

Figure 11 is a conduction fixed contact vertical view.

Figure 12 is the conductive moving contact front view.

Figure 13 is the conductive moving contact vertical view.

Figure 14 is that insulation touches the slide block front view.

Figure 15 is that insulation touches the slide block left view.

Figure 16 is that insulation touches the slide block rearview.

Figure 17 touches a mouthful rubber seal cap front view.

Figure 18 touches a mouthful rubber seal cap left view.

Among the figure 1, insulation crust 2, install and fix hole 3, touch mouth 4, touch a mouthful outside cylinder 5, touch a mouthful interior cylinder 6, spring stop 7, conduction fixed contact locating piece 8, insulation touches slider slideway 9, insulation sides shrouding 10, conduction fixed contact jack 11 on the insulation sides shrouding, conduction fixed contact external cabling screw 12, the fixing socket 13 of using on the conduction fixed contact, fixed contact 14, moving contact 15, conductive moving contact location hole 16, touch 17, conductive moving contact backstay 18, insulation touches slide block positioning plate 19, touch a mouthful rubber seal cap 20, holddown spring 21, strut with spring 22, conduction fixed contact 23, conductive moving contact 24, airtight and watertight padding

In Fig. 1, four conduction fixed contacts 23 insert respectively between four on insulator foot conduction fixed contact locating pieces 7, pass from the location hole 15 of conductive moving contact with conductive moving contact backstay 17 on the insulation shake-up slide block, and allow its moving contact 14 upwards, on the conductive moving contact backstay 17 that has passed, be inserted in and strut with spring 21, on conductive moving contact backstay 17, penetrate another conductive moving contact then and make its moving contact 14 downward, to insulate again and touch slide block, put into a holddown spring 20 more in the above between this conductive moving contact and the spring stop 6 by the insulation shake-up slider slideway 8 of putting into shown in Figure 1.

As shown in Figure 2, the insulator foot that Fig. 1 has been installed conduction fixed contact and conductive moving contact inserts from a side of insulation crust 1, when inserting, compress and touch 16 and make holddown spring 20 and strut with spring 21 contractions with finger, when touch 16 be inserted into touch mouthfuls 3 middle the time, touching 16 meeting ejects from touching the middle of mouth 3 automatically because of holddown spring 20 and the effect that struts with spring 21, at this moment insulator foot promptly is in place, again two on the insulation sides shrouding 9 conduction fixed contact jacks 10 are aimed at the end of two conduction fixed contacts respectively, the insulation sides shrouding is pushed in the end of insulation crust 1 and seals the one side, use the same method and seal the opposite side of insulation crust 1.Be enclosed within and touch on mouthfuls 3 the interior cylinder 5 with touching a mouthful rubber seal cap 19 again, mouthful effect of rubber seal cap 19 that touches is not only can guarantee to touch 16 o'clock rubber seal caps 19 and can stretch thereupon but also can play good sealing function to touching mouth 3 pressing.At last the place, slit, both sides of insulation sides shrouding 9 and insulation crust 1 and the interior cylinder 5 and the place, the slit between the outside cylinder 4 of shake-up mouth are filled with airtight and watertight padding.Isolate fully with dynamic and static contact and the external environment condition of guaranteeing push-button switch.

As can be seen from Figure 1 the structure of four conduction fixed contacts 22 is just the same, the structure of two conductive moving contacts 23 is just the same, but fixed contact 13 and moving contact 14 towards different its function that changed when installing owing to it, above conductive moving contact and top two conduction fixed contacts formed a pair of normally closed contact, below conductive moving contact and following two conduction fixed contacts formed a pair of normal opened contact, as shown in Figure 2, when pressing when touching 16 from touching mouthfuls 3, insulation touches slide block and will move up along insulation shake-up slider slideway 8, below conductive moving contact touch in insulation also up to move under the promotion of slide block and contact with the fixed contact 13 of following pair of conductive fixed contact until moving contact 14, i.e. connection following this to normal opened contact; A top conductive moving contact is also moving upward and is separating with top pair of conductive fixed contact under the effect of insulation shake-up slide block simultaneously, and this is to normally closed contact above promptly disconnecting.When unclamping when touching 16, a pair of normally closed contact and a pair of normal opened contact will return to position as shown in Figure 2 again.

Claims

1, the isolated push-button switch in a kind of contact, in insulation crust, dynamic and static contact compresses normally closed contact by holddown spring, open normal opened contact by strutting with spring, it is characterized in that: dynamic and static contact is installed on the insulator foot, and mounted dynamic and static contact and insulator foot insert in the insulation crust together, and the two ends of insulation crust are shut with airtight and watertight padding, to touch mouth and seal with rubber cap, the dynamic and static contact and the external environment condition of push-button switch are isolated fully.

2, the isolated push-button switch in contact according to claim 1 is characterized in that: insulation crust is an integral body.

3, the isolated push-button switch in contact according to claim 1 is characterized in that: dynamic and static contact is installed on the insulator foot, and mounted dynamic and static contact and insulator foot insert in the insulation crust together.

4, the isolated push-button switch in contact according to claim 1 is characterized in that: the place shuts with airtight and watertight padding with slit, insulation crust two ends, insulation crust is touched mouth seal with rubber cap.