CN201319334Y - Flameproof keystroke device - Google Patents
Flameproof keystroke device Download PDFInfo
- Publication number
- CN201319334Y CN201319334Y CNU2008202244496U CN200820224449U CN201319334Y CN 201319334 Y CN201319334 Y CN 201319334Y CN U2008202244496 U CNU2008202244496 U CN U2008202244496U CN 200820224449 U CN200820224449 U CN 200820224449U CN 201319334 Y CN201319334 Y CN 201319334Y
- Authority
- CN
- China
- Prior art keywords
- keystroke
- explosion
- shaft
- button axle
- 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)
Abstract
The utility model relates to a flameproof keystroke device, which comprises an anti-explosion body, wherein a keystroke shaft is arranged on the anti-explosion body, a circuit keystroke board is positioned on the lower portion of the anti-explosion body, a contactor corresponding to the keystroke shaft is arranged on the circuit keystroke board, and a spring is placed at the lower end of the keystroke shaft to enable size of the keystroke shaft to become small. The utility model with easy installation and utilization has the advantages that when the keystroke shaft connects or disconnect a circuit, the keystroke shaft can recover rapidly under the action of the spring, thereby ensuring rapid movement of the keystroke shaft.
Description
Technical field
The utility model relates to a kind of flame proof key-press device.
Background technology
On explosion-proof table, all be provided with pushbutton unit, be used for each circuit in the explosion-proof table is switched on or switched off, button left mostly often by button, after being switched on or switched off, circuit just is returned to original state, now, the button of using on explosion-proof table mostly structure is bigger, installs and uses inconvenience, the elasticity recovery of button is low, does not reach instructions for use sometimes.
The utility model content
Problem to be solved in the utility model is at above problem, and the flame proof key-press device that a kind of structure is little, easy to install, the elasticity recovery of button is high is provided.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of flame proof key-press device, comprise explosion-proof body, described explosion-proof body is provided with the button axle, described explosion-proof body bottom is provided with the circuit keypad, described circuit keypad is provided with the contact corresponding with the button axle, and described button axle lower end is provided with spring.
A kind of concrete prioritization scheme, described explosion-proof body bottom is fixedly connected with fixed head.
A kind of concrete prioritization scheme, described fixed head are provided with the through hole that can supply button axle lower end to pass.
A kind of concrete prioritization scheme, described circuit keypad is fixedlyed connected with explosion-proof body by bolt.
A kind of concrete prioritization scheme, the quantity of described button axle are five.
The utility model is taked above technical scheme, have the following advantages: the size decreases of button axle, and the lower end at the button axle is provided with spring, button axle construction is diminished, easy to install, after the button axle is switched on or switched off circuit, under the effect of spring, can reply rapidly, make being swift in motion of button axle quick.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of flame proof key-press device in the utility model;
Accompanying drawing 2 is the structural representation of A-A section in the accompanying drawing 1.
Embodiment
The explosion-proof body of 1-, 2-button axle, 3-fixed head, 4-spring, 5-bolt, 6-contact, 7-circuit keypad.
As shown in Figure 1, a kind of flame proof key-press device comprises explosion-proof body 1, and explosion-proof body 1 is provided with button axle 2, and explosion-proof body 1 bottom is provided with circuit keypad 7, and circuit keypad 7 is provided with the contact 6 corresponding with button axle 2, and button axle 2 lower ends are provided with spring 4.
Explosion-proof body 1 bottom is fixedly connected with fixed head 3, and fixed head 3 is provided with the through hole that can supply button axle 2 lower ends to pass.
Circuit keypad 7 is fixedlyed connected with explosion-proof body 1 by bolt 5.
As shown in Figure 2, the quantity of button axle 2 is five, and the quantity of bolt 5 is four.
Button axle 2 unclamps button axle 2 after pressing and connecting circuit, and button axle 2 returns to original position rapidly under the effect of the spring 4 that is positioned at button axle 2 lower ends, button axle 2 is swift in motion when make-and-break contact fast.
Claims (5)
1, a kind of flame proof key-press device, it is characterized in that: comprise explosion-proof body (1), described explosion-proof body (1) is provided with button axle (2), described explosion-proof body (1) bottom is provided with circuit keypad (7), described circuit keypad (7) is provided with the contact (6) corresponding with button axle (2), and described button axle (2) lower end is provided with spring (4).
2, a kind of flame proof key-press device as claimed in claim 1 is characterized in that: described explosion-proof body (1) bottom is fixedly connected with fixed head (3).
3, a kind of flame proof key-press device as claimed in claim 2 is characterized in that: described fixed head (3) is provided with the through hole that can supply button axle (2) lower end to pass.
4, a kind of flame proof key-press device as claimed in claim 1 is characterized in that: described circuit keypad (7) is fixedlyed connected with explosion-proof body (1) by bolt (5).
5, a kind of flame proof key-press device as claimed in claim 1 is characterized in that: the quantity of described button axle (2) is five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202244496U CN201319334Y (en) | 2008-12-02 | 2008-12-02 | Flameproof keystroke device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202244496U CN201319334Y (en) | 2008-12-02 | 2008-12-02 | Flameproof keystroke device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319334Y true CN201319334Y (en) | 2009-09-30 |
Family
ID=41198096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202244496U Expired - Fee Related CN201319334Y (en) | 2008-12-02 | 2008-12-02 | Flameproof keystroke device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201319334Y (en) |
-
2008
- 2008-12-02 CN CNU2008202244496U patent/CN201319334Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20101202 |