CN109243891A - A kind of switch triggering mechanism - Google Patents
A kind of switch triggering mechanism Download PDFInfo
- Publication number
- CN109243891A CN109243891A CN201811031575.4A CN201811031575A CN109243891A CN 109243891 A CN109243891 A CN 109243891A CN 201811031575 A CN201811031575 A CN 201811031575A CN 109243891 A CN109243891 A CN 109243891A
- Authority
- CN
- China
- Prior art keywords
- microswitch
- positioning sleeve
- spring
- contact plate
- fixed plate
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/004—Two parallel coil springs
Abstract
Present invention relates particularly to a kind of switch triggering mechanisms, the oil circuit conversion monitoring microswitch for aircraft door hydraulic control valve.Microswitch is set at slide valve end in hatch door hydraulic control valve on aircraft, for monitoring slide valve working condition, plays self-checking function, but repeatedly occurs microswitch in use and the failures such as does not trigger, damages, causes system false alarm, has seriously affected the use of system.The invention proposes a kind of double-spring structure switch triggering mechanisms, microswitch is installed in fixed plate, the position opposite with fixed plate is fixed with big positioning sleeve, contact plate for triggering microswitch is cup-like structure, and there is annular convex platform in open end, precompressed outer spring is mounted between fixed plate and annular convex platform；Small positioning sleeve is squeezed by inner spring inside the contact plate, spool presses to small positioning sleeve by the through-hole of big positioning sleeve.Using double-spring structure, solve the problems, such as that switch triggering is unreliable, overtravel damage.
Description
Technical field
Present invention relates particularly to a kind of switch triggering mechanism, the oil circuit conversion monitoring for aircraft door hydraulic control valve is micro-
Dynamic switch.
Background technique
Microswitch is set at slide valve end in hatch door hydraulic control valve on aircraft, for monitoring slide valve working condition, is risen
Repeatedly occur microswitch to self-checking function, but in use and the failures such as do not trigger, damage, causes system false alarm, serious shadow
The use of system is rung.
Summary of the invention
The invention proposes a kind of double-spring structure switch triggering mechanisms, use double-spring structure, solve switch touching
Send out unreliable, overtravel damage the problem of.
A kind of trigger mechanism for microswitch, which installs microswitch in fixed plate, opposite with fixed plate
Position be fixed with big positioning sleeve, for trigger microswitch contact plate be cup-like structure, and open end have convex annular
Platform, precompressed outer spring are mounted between fixed plate and annular convex platform；By inner spring to small fixed inside the contact plate
Position set is squeezed, and small positioning sleeve is limited by snap ring in contact plate adjacent open end, and spool passes through the through-hole pair of big positioning sleeve
Small positioning sleeve pressure.
Through-hole is provided on the side wall of the contact plate.
The microswitch is fixed in fixed plate by nut.
The pre-compression force of the outer spring is less than the pre-compression force of inner spring.
The mechanism is applied in the hydraulic control valve for needing to monitor slide valve conversion, and high reliablity is not easy overtravel damage.
Realize the needs that microswitch reliable trigger, the protection of triggering overtravel and slide valve reset.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of switch triggering mechanism of the present invention.
Wherein, 1- microswitch, 2- fixed plate, 3- nut, 4- outer spring, 5- contact plate, 6- inner spring, the small positioning of 7-
Set, 8- snap ring, 9- spool, the big positioning sleeve of 10-, 11- through-hole
Specific embodiment
Referring to Fig. 1, a kind of switch triggering mechanism of the present invention include microswitch 1, fixed plate 2, nut 3, outer spring 4,
Contact plate 5, inner spring 6, small positioning sleeve 7, snap ring 8, spool 9 and big positioning sleeve 10.Microswitch 1 passes through the center of fixed plate 2
Hole is threadedly coupled with nut 3, and microswitch 1 is fixed in fixed plate 2.The flange excircle face of contact plate 5 and big positioning sleeve 10
Inner hole is slidably matched, and the inner hole of contact plate 5 and the periphery of small positioning sleeve 7 are slidably matched, when spool 9 is not moved to the left, contact
With microswitch 1 there are certain interval, the outer circle upper surface of contact plate 5 opens a through-hole 11, prevents small positioning for the left side of plate 5
The confined air air pressure when 5 inner hole of contact plate is moved to the left of set 7 is contracted, and is applied load to the right to small positioning sleeve 7 and is increased, prevents small positioning
Set 7 is moved to the left.Outer spring 4 is mounted in fixed plate 2 and contact plate 5, and big 6 are mounted in the left side circular groove of small positioning sleeve 7,
The left and right end face of inner spring 6 is bonded with the left groove bottom surface of the inner hole left side of contact plate 5, small positioning sleeve 7 respectively.Snap ring 8
It for notch annulus, is mounted in small 7 inner port edge semi-circular recesses of positioning sleeve, the lower half circular portion of snap ring 8 and small positioning sleeve 7
The quarter circular arc of right side is in contact, and carries out axially position to small positioning sleeve 7.Spool 9 is mounted on hatch door hydraulic control valve
It in valve pocket, can be moved to the left under hydraulic oil effect, conical socket is arranged in the right side of small positioning sleeve 7, and the left side of spool 9 is
Spherical structure is felt relieved for the contact with small positioning sleeve 7 of spool 9.
The switch triggering mechanism of the present invention course of work is as follows:
Switch triggering: spool 9 can be moved to the left in the case where right side is acted on by high pressure oil, be contacted with small positioning sleeve 7, due to applying
Hydraulic pressure on spool 9 to the left is greater than the pre-compression force of outer spring 4, and the spring force of outer spring 4 is less than the spring of inner spring 6
Power, spool 9 continue to be moved to the left, and outer spring 4 is compressed.When microswitch 1 and contact plate 5 contact, microswitch 1 is triggered
When, at this time microswitch 1 and outer spring 4 it is common to contact plate 5 active force is greater than the active force of inner spring 6 to the right when, spool 9
Continue motion compresses inner spring 6, when 9 left side transverse plane of spool is contacted with big positioning sleeve 10,9 stop motion of spool is simultaneously kept.
Switch disconnects: spool 9 is less than the precompression of outer spring 4 on right side by low pressure oil active force, in outer spring 4 and interior bullet
Under the action of spring 6, spool 9 moves right, and when microswitch 1 is separated with contact plate 5, microswitch 1 is disconnected.
Spool 9 continues to move right, when the right side of contact plate 5 is bonded with the inner hole right side of big positioning sleeve 10, outside
Spring 4 resets.Meanwhile small 7 inner port edge semi-circular recesses of positioning sleeve are contacted with snap ring 8, inner spring 6 resets, and spool 9 resets.
Claims (4)
1. a kind of trigger mechanism for microswitch, it is characterised in that: microswitch is installed on fixed plate (2) by the mechanism
(1), the position opposite with fixed plate (2) is fixed with big positioning sleeve (10), and the contact plate (5) for triggering microswitch (1) is
Cup-like structure, and there is annular convex platform in open end, precompressed outer spring (4) be mounted on fixed plate (2) and annular convex platform it
Between；Small positioning sleeve (7) is squeezed by inner spring (6) inside the contact plate (5), small positioning sleeve (7) passes through snap ring
(8) it is limited in contact plate (5) adjacent open end, spool (9) presses to small positioning sleeve (7) by the through-hole of big positioning sleeve (10).
2. trigger mechanism according to claim 1, it is characterised in that: be provided with through-hole on the side wall of the contact plate (5)
(11)。
3. trigger mechanism according to claim 2, it is characterised in that: microswitch (1) is fixed on fixation by nut (3)
On plate (2).
4. trigger mechanism according to claim 3, it is characterised in that: the pre-compression force of the outer spring (4) is less than interior bullet
The pre-compression force of spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031575.4A CN109243891B (en) | 2018-09-05 | 2018-09-05 | Switch trigger mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031575.4A CN109243891B (en) | 2018-09-05 | 2018-09-05 | Switch trigger mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109243891A true CN109243891A (en) | 2019-01-18 |
| CN109243891B CN109243891B (en) | 2020-01-10 |
Family
ID=65060556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031575.4A Active CN109243891B (en) | 2018-09-05 | 2018-09-05 | Switch trigger mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243891B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220485A (en) * | 2019-07-08 | 2019-09-10 | 徐州徐工随车起重机有限公司 | A kind of soft leg auxiliary detection device of supporting leg |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003331693A (en) * | 2002-05-13 | 2003-11-21 | Nidec Copal Corp | Rotary encoder with built-in switch |
| CN105448573A (en) * | 2015-12-28 | 2016-03-30 | 宁波速普电子有限公司 | New type triggering type emergency stop switch |
| CN107134380A (en) * | 2017-06-05 | 2017-09-05 | 漳州聚安美电气科技有限公司 | Limit switch cored structure |
| CN206834104U (en) * | 2017-06-05 | 2018-01-02 | 漳州聚安美电气科技有限公司 | Dual spring trigger mechanism for microswitch |
-
2018
- 2018-09-05 CN CN201811031575.4A patent/CN109243891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003331693A (en) * | 2002-05-13 | 2003-11-21 | Nidec Copal Corp | Rotary encoder with built-in switch |
| CN105448573A (en) * | 2015-12-28 | 2016-03-30 | 宁波速普电子有限公司 | New type triggering type emergency stop switch |
| CN107134380A (en) * | 2017-06-05 | 2017-09-05 | 漳州聚安美电气科技有限公司 | Limit switch cored structure |
| CN206834104U (en) * | 2017-06-05 | 2018-01-02 | 漳州聚安美电气科技有限公司 | Dual spring trigger mechanism for microswitch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220485A (en) * | 2019-07-08 | 2019-09-10 | 徐州徐工随车起重机有限公司 | A kind of soft leg auxiliary detection device of supporting leg |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109243891B (en) | 2020-01-10 |
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