CN2237885Y - Safety switch - Google Patents
Safety switch Download PDFInfo
- Publication number
- CN2237885Y CN2237885Y CN 94209255 CN94209255U CN2237885Y CN 2237885 Y CN2237885 Y CN 2237885Y CN 94209255 CN94209255 CN 94209255 CN 94209255 U CN94209255 U CN 94209255U CN 2237885 Y CN2237885 Y CN 2237885Y
- Authority
- CN
- China
- Prior art keywords
- switch
- air chamber
- safety switch
- air
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Push-Button Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model discloses a safety switch provided with a circuit on-off switch which is composed of a wire holder, a chassis, a moving plate and a static plate. The safety switch is characterized in that two air chambers with variable volume are additionally arranged and are communicated by an air pipe: one is a driving air chamber, and the other one is a driven air chamber which is arranged on the moving plate of the circuit on-off switch and fixed with the circuit on-off switch. The safety switch of the utility model is suitable for normal environments except high temperature, high pressure and vacuum, as well as inflammable, explosive, moist even in water, strong electromagnetic field, overproof fly ash, toxic, harmful and other severe environments.
Description
The utility model belongs to appliance switch.
Existing control button, Protection switch (waterproof and dustproof, explosion-proof), travel switch, limit switch, its electric contact is all in the working site, the working site live wire easily causes the person to get an electric shock so on the one hand, the place, contact accidents such as bad and blast can occur leaking electricity, conducting electricity because of aqueous vapor, dust, inflammable gas etc. on the other hand.The Protection switch that uses in adverse circumstances is cylinder iron made, volume is big, Heavy Weight, main safeguard procedures: wire hole and the sealing of hamper joint portion line with rubber sheet circle, strick precaution condition harshness, installation, maintenance or careless slightly when using are damaged insulation or protective materials, still cause the person to get an electric shock and other accidents.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, and a kind of safety switch is provided, and it has simple in structure, safety, uses, characteristics easy to maintenance.
Safety switch of the present utility model, it is by the circuit switch of being made up of junction block, base, moving plate, still, it is characterized in that the air chamber of two variable volume in addition, one is the active air chamber, one is passive air chamber, be communicated with by a tracheae between the 2 air chambers, passive air chamber places on the moving plate of circuit switch and with circuit switch and is connected.
Above-mentioned safety switch is characterized in that air chamber is the air bag that elastomeric material is made.
Above-mentioned safety switch is characterized in that the piston body that air chamber is made up of shell, piston, spring.
Above-mentioned safety switch is characterized in that initiatively air bag places among the housing, and the push rod of button is stretched this housing of people, presses the then plane extruding active air bag of push rod lower end of button.
Safety switch of the present utility model shifts out the working site with the electric contact that has control button, Protection switch now, uses the air-operated control electric contact, thereby realized the purpose of safe handling, working site one no electric contact, two no leads, safety switch simple in structure used, safeguards also very convenient.
Fig. 1, the control member of embodiment one and circuit switch.Wherein, 1 button, 2 springs, 3 nuts, 4 push rods, 5 sponge backing plates, 6 air bags, 7 housings, 8 nuts, 9 output valves, 10 tracheaes, 11 valves, 12,17 nuts, 13,21 housings, 14 glued membranes, 15 fine motion contacts, 16 fixed contacts, 18 sponges that reset, 19 steam vents, 20 binding posts.
Fig. 2, the control member of embodiment two.Wherein, 35 pistons, 36 air chambers, 37 housings.
Fig. 3, the circuit switch of embodiment two.Wherein, 44 air bags.
Fig. 4,5,6, other embodiment of the utility model safety switch control member.Wherein, 61 nuts, 62 valves, 63 air bags.
With embodiment one is that example illustrates course of action of the present utility model.
See Fig. 1.Fig. 1 is the control member and the circuit switch of safety switch, is communicated with tracheae 10 between the two.
The mushroom of pressing control member eats button 1, sponge backing plate 5 makes air bag 6 compressive deformations, and the micro-pressure signal of generation is transferred to the valve 11 of circuit switch by valve 9 and tracheae 10, makes glued membrane 14 pressurizeds, drive fine motion contact 15 and contact, two binding posts 20 are connected with fixed contact 16.
Variable air chamber of the present utility model has multiple mode, has only listed severally in the accompanying drawing, obviously is not limited to several shown in the figure.
Safety switch of the present utility model; it is charged and be subjected to the disadvantage of occasion condition restriction to have solved control switch; the control information one-way transmission; need not the loop; simplified the path of control information transmission; applicable to all homes except that high temperature, high pressure, vacuum, and in inflammable and explosive, humidity even the water, various adverse circumstances such as strong-electromagnetic field, dust exceed standard, poisonous and harmful.
Claims (4)
1 one kinds of safety switches, it is by the circuit switch of being made up of junction block, base, moving plate, still, it is characterized in that the air chamber of two variable volume in addition, one is the active air chamber, one is passive air chamber, be communicated with by a tracheae between the 2 air chambers, passive air chamber places on the moving plate of circuit switch and with circuit switch and is connected.
2 safety switches as claimed in claim 1 is characterized in that air chamber is the air bag that elastomeric material is made.
3 safety switches as claimed in claim 1 is characterized in that the piston body that air chamber is made up of shell, piston, spring.
4 safety switches as claimed in claim 2 is characterized in that initiatively air bag places among the housing, and the push rod of button is stretched this housing of people, press the then plane extruding active air bag of push rod lower end of button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209255 CN2237885Y (en) | 1994-04-16 | 1994-04-16 | Safety switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94209255 CN2237885Y (en) | 1994-04-16 | 1994-04-16 | Safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237885Y true CN2237885Y (en) | 1996-10-16 |
Family
ID=33826999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94209255 Expired - Fee Related CN2237885Y (en) | 1994-04-16 | 1994-04-16 | Safety switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237885Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952753A (en) * | 2017-03-16 | 2017-07-14 | 燕山大学 | Mechanical remote jettron |
| CN110676082A (en) * | 2019-10-23 | 2020-01-10 | 广东海洋大学 | Electric automation equipment trouble emergency power-off device |
| CN114251594A (en) * | 2021-11-15 | 2022-03-29 | 深圳供电局有限公司 | Temperature adjusting device and wind driven generator |
-
1994
- 1994-04-16 CN CN 94209255 patent/CN2237885Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952753A (en) * | 2017-03-16 | 2017-07-14 | 燕山大学 | Mechanical remote jettron |
| CN110676082A (en) * | 2019-10-23 | 2020-01-10 | 广东海洋大学 | Electric automation equipment trouble emergency power-off device |
| CN110676082B (en) * | 2019-10-23 | 2021-06-25 | 广东海洋大学 | Electric automation equipment trouble emergency power-off device |
| CN114251594A (en) * | 2021-11-15 | 2022-03-29 | 深圳供电局有限公司 | Temperature adjusting device and wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |