CN209199819U - A kind of key switch with adjustable limiting - Google Patents
A kind of key switch with adjustable limiting Download PDFInfo
- Publication number
- CN209199819U CN209199819U CN201920167764.8U CN201920167764U CN209199819U CN 209199819 U CN209199819 U CN 209199819U CN 201920167764 U CN201920167764 U CN 201920167764U CN 209199819 U CN209199819 U CN 209199819U
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- CN
- China
- Prior art keywords
- bar
- slide cartridge
- top shell
- key switch
- button spindle
- 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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Abstract
The utility model discloses a kind of key switches with adjustable limiting, including top shell and bottom case, the top shell is internally provided with button spindle, run through top shell inner roof wall at the top of the button spindle and is fixedly connected with button cap, the button spindle be located inside top shell one section has been fixedly attached limit base, the button spindle is socketed with reset spring between limit base bottom and top shell inner bottom wall, the bottom shell is provided with slide cartridge, the side wall of the slide cartridge is opened up there are two symmetrically arranged sliding slot, the slide cartridge is internally provided with cross-bar, the activity of the both ends of the cross-bar through sliding slot and is fixedly connected with conversion contact, the slide cartridge is provided with regulation limiting device close to bottom.The utility model is conducive to change the distance between limited block and cross-bar bottom, so that adjustment spring further be compressed, to effectively promote the reset function of adjustment spring, prevents the function of influencing key switch by being equipped with regulation limiting device.
Description
Technical field
The utility model relates to electronic component technology field, in particular to a kind of key switch with adjustable limiting.
Background technique
Key switch is a kind of electronic switch, belongs to electronic component class, appears in Japan earliest, to meet behaviour when use
The condition for making power is connected to switch operation pressuring direction switching function closure, is switched and is disconnected when cancelling pressure, internal junction
Structure changes to realize on-off by metal clips stress.
However, internal some springs press for a long time is easy to cause coefficient of elasticity to send out in the long-term use process of switch
Changing makes spring not have original spring, the failures such as can not be closed so as to cause contact.
Therefore, it is necessary to solve the above problems to invent a kind of key switch with adjustable limiting.
Utility model content
The purpose of this utility model is to provide a kind of key switches with adjustable limiting, adjust limit dress by being equipped with
It sets, is conducive to change the distance between limited block and cross-bar bottom, to adjustment spring further be compressed, thus effectively
The reset function for promoting adjustment spring prevents the function of influencing key switch, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of key switch with adjustable limiting,
Including top shell and bottom case, the top shell is internally provided with button spindle, and top shell inner roof wall and fixed company are run through at the top of the button spindle
It is connected to button cap, the button spindle be located inside top shell one section has been fixedly attached limit base, and the button spindle is located at limit base
Reset spring is socketed between bottom and top shell inner bottom wall, the bottom shell is provided with slide cartridge, and the side wall of the slide cartridge opens up
There are two symmetrically arranged sliding slot, the slide cartridge is internally provided with cross-bar, and the activity of the both ends of the cross-bar runs through sliding slot
And it is fixedly connected with conversion contact, the slide cartridge is provided with regulation limiting device, the cross-bar bottom and adjusting close to bottom
Adjustment spring is connected between at the top of limiting device.
Preferably, the button spindle bottom end extends to inside slide cartridge through top shell and bottom case, the button spindle bottom
It is fixedly connected with glue bar, there is buffer gap between glue bar bottom and cross-bar top.
Preferably, the bottom shell be respectively provided with there are two symmetrically arranged normally closed interlock and two it is symmetrically arranged normally opened
Contact, two normally closed interlocks, which are located at, to be arranged at the top of conversion contact and contacts with conversion contact, two normally open contact positions
It is arranged in conversion contact bottom and is not contacted with conversion contact.
Preferably, the regulation limiting device includes limited block, is that screw thread is arranged inside the limited block, the limited block
Internal whorl is connected with screw rod, and the screw rod bottom end is through bottom case inner bottom wall and is fixedly connected with adjusting knob, the silk
Bar and bottom case run through position fixing sleeve and are connected to bearing.
Preferably, the two sides of the limited block are fixedly connected to locating piece, and two sides offer fixed inside the slide cartridge
Position slot, the locating piece match with locating slot.
Preferably, two normally closed interlocks are identical as two normally open contact model sizes, the normally open contact and normally closed
Contact is and conversion contact is on same straight line.
The technical effect and advantage of the utility model:
1, by being equipped with regulation limiting device, be conducive to change the distance between limited block and cross-bar bottom, thus will
Adjustment spring further compresses, to effectively promote the reset function of adjustment spring, prevents the function of influencing key switch.
2, by being equipped with glue bar, be conducive to make that there is certain cushion space between button spindle and cross-bar, prevent accidentally
When operation, button press cap directly results in line anomalies, to retain certain more positive space.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the portion A structural schematic diagram in Fig. 1 of the utility model.
In figure: 1, top shell；2, bottom case；3, button spindle；4, button cap；5, limit base；6, reset spring；7, slide cartridge；8, sliding
Slot；9, cross-bar；10, conversion contact；11, regulation limiting device；12, adjustment spring；13, glue bar；14, normally closed interlock；15,
Normally open contact；16, limited block；17, screw rod；18, adjusting knob；19, bearing；20, locating piece；21, locating slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of key switch with adjustable limiting as shown in Figs. 1-2, including top shell 1 and bottom
Shell 2, the top shell 1 are internally provided with button spindle 3, and 1 inner roof wall of top shell is run through at the top of the button spindle 3 and is fixedly connected with button
Cap 4, the button spindle 3 be located inside top shell 1 one section have been fixedly attached limit base 5, by being equipped with limit base 5, are conducive to limit
The total position of movement of position button spindle 3, the button spindle 3, which is located between 1 inner bottom wall of 5 bottom of limit base and top shell, is socketed with reset bullet
Spring 6, the bottom case 2 are internally provided with slide cartridge 7, and the side wall of the slide cartridge 7 opens up that there are two symmetrically arranged sliding slot 8, the cunnings
Cylinder 7 is internally provided with cross-bar 9, and the activity of the both ends of the cross-bar 9 is through sliding slot 8 and is fixedly connected with conversion contact 10,
By push button cap 4, button spindle 3 is moved down, so that glue bar 13 be made to push cross-bar 9 in 7 internal slide of slide cartridge, made
Conversion contact 10 is disconnected with normally closed interlock 14 and being contacted with normally open contact 15, to change the state of circuit where key switch, institute
It states slide cartridge 7 and bottom is provided with regulation limiting device 11,9 bottom of cross-bar and regulation limiting device connect between 11 top
It is connected to adjustment spring 12.
Further, in the above-mentioned technical solutions, 3 bottom end of button spindle extends to cunning through top shell 1 and bottom case 2
Inside cylinder 7,3 bottom of button spindle is fixedly connected with glue bar 13, and 13 bottom of glue bar and cross-bar have between 9 top
Buffer gap by the gap between glue bar 13 and cross-bar 9 is conducive to that button spindle 3 is made to have certain cushion space, thus
It prevents fault from pressing button cap 4, power-off is caused to endanger；
Further, in the above-mentioned technical solutions, symmetrically arranged normally closed interlock there are two being respectively provided with inside the bottom case 2
14 and two symmetrically arranged normally open contacts 15, two normally closed interlocks 14 be located at the top of conversion contact 10 setting and with conversion
Contact 10 contacts, and two normally open contacts 15 are located at the setting of 10 bottom of conversion contact and do not contact with conversion contact 10；
Further, in the above-mentioned technical solutions, the regulation limiting device 11 includes limited block 16, the limited block 16
Inside is that screw thread is arranged, and 16 internal whorl of limited block is connected with screw rod 17, and 17 bottom end of screw rod is in bottom case 2
Bottom wall is simultaneously fixedly connected with adjusting knob 18, and the screw rod 17 is connected to bearing 19 through position fixing sleeve with bottom case 2, by setting
Have regulation limiting device 11, be conducive to change the distance between limited block 16 and 9 bottom of cross-bar, thus by adjustment spring 12 into
One step compresses, to effectively promote the reset function of adjustment spring 12, prevents the function of influencing key switch；
Further, in the above-mentioned technical solutions, the two sides of the limited block 16 are fixedly connected to locating piece 20, described
7 inside two sides of slide cartridge offer locating slot 21, and the locating piece 20 matches with locating slot 21, in locating piece 20 and positioning
Under the restriction effect of slot 21, move up limited block 16；
Further, in the above-mentioned technical solutions, two normally closed interlocks 14 and two 15 model sizes of normally open contact
Identical, the normally open contact 15 and normally closed interlock 14 are with conversion contact 10 on same straight line.
This practical working principle:
Referring to Figure of description 1-2, in key switch in use, by push button cap 4, make button spindle 3 to moving down
It is dynamic, so that glue bar 13 be made to push cross-bar 9 in 7 internal slide of slide cartridge, make conversion contact 10 and the disconnection of normally closed interlock 14 with it is normally opened
Contact 15 contacts, to change the state of circuit where key switch, when button cap 4 unclamps, by reset spring 6 and adjusts
Spring 12 sets back button spindle 3 with change-over switch, after key switch is used for a long time, after spring is deteriorated, by turning
Dynamic adjusting knob 18, rotates screw rod 17, is opened and be threadedly coupled with limit by screw rod 17, in locating piece 20 and locating slot 21
Under restriction effect, move up limited block 16, to change the distance between limited block 16 and 9 bottom of cross-bar, thus will
Adjustment spring 12 further compresses, to effectively promote the reset function of adjustment spring 12, prevents the function for influencing key switch
Energy.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of key switch with adjustable limiting, including top shell (1) and bottom case (2), it is characterised in that: the top shell (1)
It is internally provided with button spindle (3), top shell (1) inner roof wall is run through at the top of the button spindle (3) and is fixedly connected with button cap (4),
The button spindle (3) is located at internal one section of top shell (1) and has been fixedly attached limit base (5), and the button spindle (3) is located at limit base
(5) it is socketed with reset spring (6) between bottom and top shell (1) inner bottom wall, the bottom case (2) is internally provided with slide cartridge (7), described
The side wall of slide cartridge (7) is opened up there are two symmetrically arranged sliding slot (8), and the slide cartridge (7) is internally provided with cross-bar (9), described
The activity of the both ends of cross-bar (9) through sliding slot (8) and is fixedly connected with conversion contact (10), and the slide cartridge (7) is close to bottom
It is provided with regulation limiting device (11), is connected with adjusting between cross-bar (9) bottom and regulation limiting device (11) top
Spring (12).
2. a kind of key switch with adjustable limiting according to claim 1, it is characterised in that: the button spindle (3)
Bottom end extends to slide cartridge (7) inside through top shell (1) and bottom case (2), and button spindle (3) bottom is fixedly connected with glue bar
(13), there is buffer gap between glue bar (13) bottom and cross-bar (9) top.
3. a kind of key switch with adjustable limiting according to claim 1, it is characterised in that: in the bottom case (2)
Portion is respectively provided with there are two symmetrically arranged normally closed interlock (14) and two symmetrically arranged normally open contacts (15), and two described normally closed
Contact (14), which is located at, to be arranged at the top of conversion contact (10) and contacts with conversion contact (10), and two normally open contacts (15) are located at
Conversion contact (10) bottom is arranged and does not contact with conversion contact (10).
4. a kind of key switch with adjustable limiting according to claim 1, it is characterised in that: the adjusting limit dress
Setting (11) includes limited block (16), is that screw thread is arranged inside the limited block (16), limited block (16) the internal whorl connection
Have screw rod (17), screw rod (17) bottom end is through bottom case (2) inner bottom wall and is fixedly connected with adjusting knob (18), described
Screw rod (17) and bottom case (2) run through position fixing sleeve and are connected to bearing (19).
5. a kind of key switch with adjustable limiting according to claim 4, it is characterised in that: the limited block (16)
Two sides be fixedly connected to locating piece (20), the internal two sides of the slide cartridge (7) offer locating slot (21), the locating piece
(20) match with locating slot (21).
6. a kind of key switch with adjustable limiting according to claim 3, it is characterised in that: two normally closed touchings
Head (14) is identical as two normally open contact (15) model sizes, and the normally open contact (15) and normally closed interlock (14) are touched with conversion
Head (10) is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167764.8U CN209199819U (en) | 2019-01-31 | 2019-01-31 | A kind of key switch with adjustable limiting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167764.8U CN209199819U (en) | 2019-01-31 | 2019-01-31 | A kind of key switch with adjustable limiting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209199819U true CN209199819U (en) | 2019-08-02 |
Family
ID=67431766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920167764.8U Expired - Fee Related CN209199819U (en) | 2019-01-31 | 2019-01-31 | A kind of key switch with adjustable limiting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209199819U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509483A (en) * | 2020-04-08 | 2020-08-07 | 王浩 | Emergency stop button with stable safety control performance |
| CN113907805A (en) * | 2021-09-30 | 2022-01-11 | 广安市人民医院 | Controllable formula cardiac operation art field blowing washing liquid device |
| CN114582650A (en) * | 2022-03-08 | 2022-06-03 | 乐清市大和电气有限公司 | Metal button industrial switch |
-
2019
- 2019-01-31 CN CN201920167764.8U patent/CN209199819U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509483A (en) * | 2020-04-08 | 2020-08-07 | 王浩 | Emergency stop button with stable safety control performance |
| CN111509483B (en) * | 2020-04-08 | 2021-06-08 | 盐城雄鹰精密机械有限公司 | Emergency stop button with stable safety control performance |
| CN113907805A (en) * | 2021-09-30 | 2022-01-11 | 广安市人民医院 | Controllable formula cardiac operation art field blowing washing liquid device |
| CN113907805B (en) * | 2021-09-30 | 2023-10-20 | 广安市人民医院 | Controllable operative field blowing and flushing device in heart operation |
| CN114582650A (en) * | 2022-03-08 | 2022-06-03 | 乐清市大和电气有限公司 | Metal button industrial switch |
| CN114582650B (en) * | 2022-03-08 | 2023-03-14 | 乐清市大和电气有限公司 | Metal button industrial switch |
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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 |
Granted publication date: 20190802 Termination date: 20200131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |