CN206758327U - A kind of lower key switch - Google Patents
A kind of lower key switch Download PDFInfo
- Publication number
- CN206758327U CN206758327U CN201720596661.4U CN201720596661U CN206758327U CN 206758327 U CN206758327 U CN 206758327U CN 201720596661 U CN201720596661 U CN 201720596661U CN 206758327 U CN206758327 U CN 206758327U
- Authority
- CN
- China
- Prior art keywords
- movable contact
- action bars
- shell
- spring
- base
- 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
Links
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
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- Tumbler Switches (AREA)
Abstract
It the utility model is related to a kind of lower key switch, include shell, action bars, movable contact spring is provided with described shell, static contact, action bars one end is placed in outside shell, the other end is extended in shell, action bars is vertically slidably matched with shell, movable contact spring is provided with movable contact, movable contact position is corresponded on static contact and is provided with stationary contact, movable contact spring is set on action bars, back-moving spring is also arranged with described action bars, back-moving spring one end contradicts with inwall under shell, the other end contradicts with movable contact spring lower surface, on action bars boss is additionally provided with positioned at movable contact spring upper end, the external diameter of boss is more than the external diameter of action bars, the lower surface of boss is pressed on the upper surface of movable contact spring.Using above-mentioned technical proposal, the utility model provides a kind of lower key switch, and it needs to set one spring of back-moving spring to meet needs, easy for installation, simple in construction；And so that movable contact spring stable movement, switch dependable performance.
Description
Technical field
Field of switches is the utility model is related to, more particularly to a kind of lower key switch.
Background technology
Existing lower key switch, include shell, action bars, movable contact spring, static contact, behaviour are provided with described shell
Make bar one end to be placed in outside shell, the other end is extended in shell, and action bars is vertically slidably matched with shell, and described is dynamic
Contact is provided with movable contact, and movable contact position is corresponded on static contact and is provided with stationary contact, stationary contact is located above movable contact, movable contact spring
Be set on action bars, be also arranged with retaining spring, back-moving spring on described action bars, retaining spring one end with shell in
Wall conflict, the other end contradict with movable contact spring upper surface, and back-moving spring one end contradicts with inwall under shell, under the other end and movable contact spring
End face contradicts.But the lower key switch of this structure, it needs to set two springs of retaining spring and back-moving spring, made
It is inconvenient when mounted to obtain it；Moreover, during retaining spring driving movable contact spring motion, movable contact spring motion is unstable, so that opening
It is unreliable to close service behaviour.
The content of the invention
The purpose of this utility model：The defects of in order to overcome prior art, the utility model provide a kind of lower button
Switch, it needs to set one spring of back-moving spring to meet needs, easy for installation, simple in construction；And so that it is dynamic to touch
Piece stable movement, switch dependable performance.
The technical solution of the utility model：A kind of lower key switch, includes shell, action bars, in described shell
Provided with movable contact spring, static contact, action bars one end is placed in outside shell, and the other end is extended in shell, and action bars is with shell along vertically
Direction is slidably matched, and described movable contact spring is provided with movable contact, and movable contact position is corresponded on static contact and is provided with stationary contact, stationary contact
Above movable contact, movable contact spring is set on action bars, and back-moving spring, back-moving spring one are also arranged with described action bars
End contradicts with inwall under shell, and the other end contradicts with movable contact spring lower surface, it is characterised in that：Touched on described action bars positioned at dynamic
Piece upper end is additionally provided with boss, and the external diameter of boss is more than the external diameter of action bars, and the lower surface of described boss is pressed on movable contact spring
On upper surface.
Using above-mentioned technical proposal, when action bars moves downward, the lower surface of boss promotes movable contact spring to move downward, from
And movable contact is separated with stationary contact.Therefore, the lower key switch of this structure, it needs to set back-moving spring one
Spring can meet needs, easy for installation, simple in construction；And so that movable contact spring stable movement, switch dependable performance.
It is of the present utility model further to set：Described shell includes the body of split settings, base, and body is set in
On base, described body is snapped connection with base, and described static contact is arranged on base, and base is provided with and worn for action bars
The through hole crossed, locating ring is provided with along through hole circumferential position on base, the lower end of back-moving spring is set on locating ring.
Further set using above-mentioned, this shell set-up mode, the peace to internal static contact, movable contact spring can be facilitated
Dress, action bars, which is located in, realizes being slidably matched for action bars and shell on through hole, its is simple in construction, action bars sliding stability；Separately
Outside, locating ring can preferably position reset spring, prevent its from producing position skew, so as to ensure that it is reliable that movable contact spring resets.
It is of the present utility model further to set：The outer wall of described base is provided with fixture block, is corresponded on the inwall of body
Fixture block position is provided with bayonet socket, and fixture block be located in bayonet socket.
Further set using above-mentioned, be located in by fixture block and snapping connection for body and base is realized in bayonet socket, tied
Structure is simple, installation, convenient disassembly.
Setting further again of the present utility model：Shoulder rank is circumferentially with along it on described base, described body
Lower surface is pressed on shoulder rank.
Using above-mentioned setting further again so that the contact surface increase between base and body, improve its sealing property.
Setting further again of the present utility model：Sealed set between the lower surface of described body and shoulder rank.
Using above-mentioned setting further again, the sealing between base and body is further improved, ensures switch
Dependable performance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model specific embodiment；
Fig. 2 is operation rod installation structure figure in the utility model specific embodiment；
Fig. 3 is shell explosive view in the utility model specific embodiment；
Fig. 4 is operation lever structure figure in the utility model specific embodiment；
Fig. 5 is the cut-away view of the utility model specific embodiment.
Embodiment
As Figure 1-5, a kind of lower key switch, include shell 1, action bars 2, be provided with described shell 1 dynamic
Contact 3, static contact 4, the one end of action bars 2 are placed in outside shell 1, and the other end is extended in shell 1, and action bars 2 and shell 1 are along vertical
Direction is slidably matched, and described movable contact spring 3 is provided with movable contact 31, and corresponding to the position of movable contact 31 on static contact 4 is provided with stationary contact
41, stationary contact 41 is located at the top of movable contact 31, and movable contact spring 3 is set on action bars 2, is also arranged with described action bars 2 multiple
Position spring 5, the 1 time inwall in the one end of back-moving spring 5 and shell contradict, and the other end contradicts with the lower surface of movable contact spring 3, described action bars
Boss 6 is additionally provided with positioned at the upper end of movable contact spring 3 on 2, the external diameter of boss 6 is more than the external diameter of action bars 2, the lower end of described boss 6
Face pressure is located on the upper surface of movable contact spring 3.When action bars 2 moves downward, the lower surface of boss 6 promotes movable contact spring 3 to transport downwards
It is dynamic, so that movable contact 31 separates with stationary contact 41.Therefore, the lower key switch of this structure, it needs to set again
Position 5 one springs of spring can meet needs, easy for installation, simple in construction；And so that the stable movement of movable contact spring 3, switch work
Make dependable performance.
In the utility model specific embodiment, described shell 1 includes the body 11 of split settings, base 12, body
11 are set on base 12, and described body 11 snaps connection with base 12, and described static contact 4 is arranged on base 12, bottom
Seat 12 is provided with the through hole 121 passed through for action bars 2, is provided with locating ring 122 along the circumferential position of through hole 121 on base 12, reset
The lower end of spring 5 is set on locating ring 122.This set-up mode of shell 1, can facilitate to internal static contact 4, movable contact spring 3
Installation, action bars 2, which is located in, realizes being slidably matched for action bars 2 and shell 1 on through hole, its is simple in construction, and action bars 2 slides
It is stable；In addition, locating ring can preferably position reset spring 5, prevent its from producing position skew, so as to ensure that movable contact spring 3 is multiple
Position is reliable.
In the utility model specific embodiment, the outer wall of described base 12 is provided with fixture block 123, on the inwall of body 11
The corresponding position of fixture block 123 is provided with bayonet socket 111, and fixture block 123 be located in bayonet socket 111.It is located in by fixture block 123 in bayonet socket 111
Snapping connection for body 11 and base 12 is realized, simple in construction, installation, convenient disassembly.
In the utility model specific embodiment, shoulder rank 124, described body 11 are circumferentially with along it on described base 12
Lower surface be pressed on shoulder rank 124.So cause the contact surface increase between base 12 and body 11, improve its sealing
Energy.Sealed set between the lower surface of described body 11 and shoulder rank 124, sealing ring can be such as set or carry out dispensing,
The sealing between base 12 and body 11 so can be further improved, ensures switch dependable performance.
Claims (5)
1. a kind of lower key switch, include shell, action bars, movable contact spring, static contact, action bars are provided with described shell
One end is placed in outside shell, and the other end is extended in shell, and action bars is vertically slidably matched with shell, described movable contact spring
Movable contact is provided with, movable contact position is corresponded on static contact and is provided with stationary contact, stationary contact is located above movable contact, and movable contact spring is arranged
On action bars, back-moving spring is also arranged with described action bars, back-moving spring one end contradicts with inwall under shell, the other end
Contradicted with movable contact spring lower surface, it is characterised in that：Be additionally provided with boss positioned at movable contact spring upper end on described action bars, boss it is outer
Footpath is more than the external diameter of action bars, and the lower surface of described boss is pressed on the upper surface of movable contact spring.
2. lower key switch according to claim 1, it is characterised in that：Described shell includes the set of split settings
Body, base, body are set on base, and described body snaps connection with base, and described static contact is arranged on base, bottom
Seat is provided with the through hole passed through for action bars, is provided with locating ring along through hole circumferential position on base, the lower end of back-moving spring is arranged
On locating ring.
3. lower key switch according to claim 2, it is characterised in that：The outer wall of described base is provided with fixture block,
Fixture block position is corresponded on the inwall of body and is provided with bayonet socket, fixture block be located in bayonet socket.
4. the lower key switch according to Claims 2 or 3, it is characterised in that：It is circumferentially with described base along it
Shoulder rank, the lower surface of described body are pressed on shoulder rank.
5. lower key switch according to claim 4, it is characterised in that：Between the lower surface of described body and shoulder rank
Sealed set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596661.4U CN206758327U (en) | 2017-05-25 | 2017-05-25 | A kind of lower key switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596661.4U CN206758327U (en) | 2017-05-25 | 2017-05-25 | A kind of lower key switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206758327U true CN206758327U (en) | 2017-12-15 |
Family
ID=60619258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720596661.4U Expired - Fee Related CN206758327U (en) | 2017-05-25 | 2017-05-25 | A kind of lower key switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206758327U (en) |
-
2017
- 2017-05-25 CN CN201720596661.4U patent/CN206758327U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 |