CN2788329Y - Gas stopcock handspike press type microswitch - Google Patents
Gas stopcock handspike press type microswitch Download PDFInfo
- Publication number
- CN2788329Y CN2788329Y CN 200520058535 CN200520058535U CN2788329Y CN 2788329 Y CN2788329 Y CN 2788329Y CN 200520058535 CN200520058535 CN 200520058535 CN 200520058535 U CN200520058535 U CN 200520058535U CN 2788329 Y CN2788329 Y CN 2788329Y
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- CN
- China
- Prior art keywords
- push rod
- movable contact
- lower casing
- spring
- contact spring
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- 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 gas cock valve push rod press type microswitch which mainly solves the technical problem that a press type microswitch does not have enough switching force of electrical contacts to further increase the electrical switching reliability of the press type microswitch. Thus, a subulate cylinder in the middle of a lower casing is sheathed outside a push rod sleeve; an annular movable contact piece and a pair of outwards protrudent cantilevers are arranged in the lower casing. Fixed contact pieces are arranged below contacts on the cantilevers. The fixed contact pieces are directly connected with a copper wire core which leads out a conducting wire. A push rod is provided with a clamp spring. A tolerance spring and a clamping ring are sequentially arranged between the clamp spring and the movable contact piece. The lower part of the clamping ring is provided with an annular flange whose bottom is in contact with the movable contact piece. A return spring is arranged between the movable contact piece and the bottom of the lower casing. The utility model is mainly used in a gas cock.
Description
Technical field
The utility model relates to the sensitive switch technical field, particularly a kind of push type sensitive switch that is installed on the Gas cock valve follower.
Background technology
Existing employing plug valve also often is equipped with switchette with the combustion gas tool of electronic high voltage circuit spark ignition on plug valve, used plug valve push rod presses down or the operating physical force pull switch button when rotating and reach and finish the electric contact purpose of (or separating).These switchettes often adopt general sensitive switch or are installed in direct push switch on the plug valve push rod: if adopt sensitive switch, because its switch contact action force is little, so it is abominable and influenced because of its condition of work to be used on the combustion gas tool its reliability, in addition special stand must be installed; If adopt the existing direct push switch that is installed on the plug valve push rod, though install fairly simplely, there are the following problems for its electrical structure:
(1) single contact structure, reliability is lower.
(2) just utilize electric contact or the disengaging action force of movable contact spring self elastic force as the contact, thereby its action force is big inadequately, the electric contact of contact or disengaging are clear-cut inadequately.
Because the plug valve push rod presses down the shortest the having only about 2mm of stroke, the switching current maxima of switch can reach 1A (direct current), push rod action force down can surpass 1kg, and the existence meeting of the problems referred to above is owing to single contact structure and not enough electric disengaging and the extinguishing arc of being unfavorable for of contact breakaway force; Said structure does not use the downforce of push rod yet and enough contact forces is arranged when making electric contact, and then forms good electric contact, thereby has influenced the reliability of electric switching.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of push switch that is installed on the Gas cock valve follower, makes it have enough big electrical contact switching power, and then improves the reliability of its electric switching.
The technical solution that the utility model proposed is such: a kind of Gas cock valve follower push type sensitive switch, comprise valve body 11, push rod 9, valve body pushing rod sleeve 7, switch housing and draw lead 6, push rod 9, valve body pushing rod sleeve 7 coaxial being installed on the valve body 11, push rod 9 is slidingly matched with pushing rod sleeve valve body 7, described switch housing is made up of last shell 3-1 and lower casing 3-2, the middle part of described lower casing 3-2 is awl tube 3-4, this awl tube 3-4 is sleeved on outside the valve body pushing rod sleeve 7, annular movable contact spring 2 is housed in the lower casing 3-2, these movable contact spring 2 evaginations have the movable contact spring cantilever 2-2 of a pair of symmetric arrangement, this cantilever 2-2 outer end is provided with contact 2-3, the lower casing 3-2 bottom surface of described contact 2-3 below is provided with fixed touching plate 4, and this fixed touching plate 4 directly is connected with the copper core of drawing lead 6; Jump ring 10 is housed on the draw-in groove of described push rod 9, tolerance spring 8 and pressure ring 1 are housed between jump ring 10 and movable contact spring 2 successively, this pressure ring 1 bottom is provided with annular flange flange 1-1, and its bottom contacts with movable contact spring 2; Between movable contact spring 2 and lower casing 3-2 bottom, back-moving spring 5 is housed.Described pressure ring 1 protrudes in outside the shell 3-1 central circular hole, and its annular flange flange 1-1 is positioned at shell 3-1 and contacts with last shell 3-1 clamping, and the annulus on pressure ring 1 top contacts with described awl tube 3-4 upper end clamping.The described upward shell 3-1 or the lower casing 3-2 outside are provided with the shell guide pillar 3-3 that a pair of vertical symmetry is arranged.Described collar flange 1-1 is having breach, is having breach with respect to movable contact spring locator card 2-1 place, having the breach that slides up and down and cooperate with shell guide pillar 3-3 in its outer rim with respect to movable contact spring suspended wall 2-2 place.Described fixed touching plate 4 both sides are bent into 90 ° of angles and are inserted in the lower casing 3-2 corresponding groove 3-5, have draw-in groove 4-1 in the middle of described fixed touching plate 4 bending parts, and this draw-in groove 4-1 passes the insulating barrier of drawing lead 6 and clamps its copper core.Have the 4-8 bar on the cylindrical shell of described awl tube 3-4 and axially connect straight trough.Described pressure ring 1 middle part barrel bore is a bit larger tham the big end external diameter of awl tube 3-4, and its both difference is in the 1-3mm scope.The distance of described movable contact spring contact 2-3 and corresponding fixed touching plate 4 is in the 0.5-2mm scope.The initial force of described back-moving spring 5 is between 400g-1000g, and the initial force of described tolerance spring 8 is between 1000g-2000g.The big end of described awl tube 3-4 and small end external diameter difference are in the 0.5-2.5mm scope.
When pressure ring 1 is not subjected to external force when pressing down, the movable contact spring contact 2-3 of switch is in electric disengaged position with corresponding fixed touching plate 4; When external force by push rod 9, jump ring 10, tolerance spring 8 pressure ring 1 after pressing down LAP, movable contact spring contact 2-3 and corresponding fixed touching plate 4 contacts, the elastic characteristic that movable contact spring cantilever 2-3 is had makes pressure ring 1 can continue to press down, till pressure ring 1 upper interior end face is pressed onto awl tube 3-4 upper surface, when continuing to press down as push rod 9, tolerance spring 8 can compressive deformations, make push rod 9 existing sufficiently long strokes but can not damage switch by pressure.In the above-mentioned course of work, the contact force of switch depends on the rigidity of movable contact spring cantilever 2-2.When push rod 9 resetted, movable contact spring 2 resetted under the active force of back-moving spring 5 and makes movable contact spring contact 2-3 break away from fixed touching plate 4, and the contact breakaway force equates with the elastic force of back-moving spring 5.
When pressure ring 1 moves up and down, the inboard breach clamping of movable contact spring locator card 2-1 and corresponding pressure ring flange 1-1, the pressure ring flange 1-1 outside is provided with shell guide pillar 3-3 and slides up and down the breach that cooperates, thereby pressure ring 1, movable contact spring 2 can not rotate, and guaranteed that movable contact spring contact 2-3 can press to or leave corresponding fixed touching plate 4 exactly when moving up and down.
The segmentation of the vertical evenly fluting of awl tube 3-4 is to make lower casing 3-2 can adapt to the pushing rod sleeve 8 of different-diameter within the specific limits, and helps centralized positioning.
Compared with prior art, the utlity model has following beneficial effect:
(1) owing to employing double-contact structure, thereby electric switch reliability height.
(2) because the engaging force and the breakaway force of contact are big, guaranteed the high reliability of sensitive switch electrical action.
(3), can so just can reduce electric contact that movable contact spring of the prior art had and two kinds of functional separations of action force element precision requirement and manufacture process requirement, thereby reduce production cost owing to adopt the structure of movable contact spring 2 and back-moving spring 5.
The utility model is mainly used in the fuel gas plug valve.
Description of drawings
Fig. 1 is that embodiment of the utility model is installed in the push type microswitch structure schematic diagram on the fuel gas plug valve.
Fig. 2 is that Fig. 1 removes the vertical view of going up shell.
Fig. 3 is the A-A cutaway view of Fig. 2.
Embodiment
By following embodiment the utility model is further elaborated.
Referring to Fig. 1, Fig. 2, shown in Figure 3, in axial direction have 6 uniform perforation straight troughs and be clamped in one heart on the valve body pushing rod sleeve 7 as the awl tube 3-4 of a lower casing 3-2 part, push rod 9 in the pushing rod sleeve 7 makes tolerance spring 8 bottoms be close to pressure ring 1 upper surface by jump ring 10, movable contact spring 2 is by movable contact spring locator card 2-1 and the respective inside breach clamping of pressure ring flange 1-1 bottom, the outside, pressure ring flange 1-1 bottom is provided with the breach that slides up and down and cooperate with shell guide pillar 3-3, thereby when pressure ring 1 moves up and down and movable contact spring 2 can not rotate, guaranteed on the 2-3 work of movable contact spring contact, under can both press to or leave fixed touching plate 4 exactly when moving, the shell guide pillar 3-3 of present embodiment and last shell 3-1 integral body outpour.Two fixed touching plate 4 both sides are 90 ° of downward bendings, bending part two outsides snap in lower casing 3-2 corresponding groove 3-5 is fixed fixed touching plate 4, have fixed touching plate draw-in groove 4-1 in the middle of it, fixed touching plate draw-in groove 4-1 passes the insulator of drawing lead 6 and the copper core realization that clamps it in is electrically connected.
The internal diameter of annular movable contact spring 2 and back-moving spring 5 is a bit larger tham the big end external diameter of awl tube 3-4, and the annular solid external diameter of movable contact spring 2 is close with the internal diameter of collar flange 1-1.
Stroke distances in the present embodiment between movable contact spring contact 2-3 and the fixed touching plate 4 is taken as 1mm, stroke distances between awl tube 3-4 upper surface and the pressure ring 1 upper interior end face is taken as 2mm, movable contact spring 2 adopts the thick elastic copper sheet of 0.3mm, power during its movable contact spring cantilever 2-2 stress deformation is about 200g, the initial force of back-moving spring 5 is about 600g, the initial force of tolerance spring 8 is about 1100g and two ends polish, its margin of tolerance is controlled at ± 0.1mm in, when push rod 9 promotes downwards, jump ring 10 drives tolerance spring 8 and presses to pressure ring 1, this sensitive switch was electric on-state when this pressure ring 1 descended about 1mm, till the downward straightening of push rod 9 continuation this moment touches awl tube 3-4 upper surface to pressure ring 1 upper interior end face, pressure ring 1 stop motion, if this moment, push rod 9 continued to move downward, tolerance spring 8 compressive deformations and can not damage switch by pressure then; When push rod 9 downforce disappeared, movable contact spring contact 2-3 hightailed fixed touching plate 4 under the effect of back-moving spring 5, finished the electric detach procedure of this sensitive switch.
Claims (10)
1, a kind of Gas cock valve follower push type sensitive switch, comprise valve body (11), push rod (9), valve body pushing rod sleeve (7), switch housing and draw lead (6), push rod (9), valve body pushing rod sleeve (7) is coaxial to be installed on the valve body (11), push rod (9) is slidingly matched with valve body pushing rod sleeve (7), described switch housing is made up of last shell (3-1) and lower casing (3-2), it is characterized in that: the middle part of described lower casing (3-2) is awl tube (3-4), this awl tube (3-4) is sleeved on outside the valve body pushing rod sleeve (7), annular movable contact spring (2) is housed in the lower casing (3-2), this movable contact spring (2) evagination has the movable contact spring cantilever (2-2) of a pair of symmetric arrangement, this cantilever (2-2) outer end is provided with contact (2-3), lower casing (3-2) bottom surface of below, described contact (2-3) is provided with fixed touching plate (4), and this fixed touching plate (4) directly is connected with the copper core of drawing lead (6); Jump ring (10) is housed on the draw-in groove of described push rod (9), tolerance spring (8) and pressure ring (1) are housed between jump ring (10) and movable contact spring (2) successively, this pressure ring (1) bottom is provided with annular flange flange (1-1), and its bottom contacts with movable contact spring (2); Between movable contact spring (2) and lower casing (3-2) bottom, back-moving spring (5) is housed.
2, push rod push type sensitive switch according to claim 1, it is characterized in that: described pressure ring (1) protrudes in outside shell (3-1) central circular hole, its annular flange flange (1-1) is positioned at shell (3-1) and contacts with last shell (3-1) clamping, and the annulus on pressure ring (1) top contacts with (3-4) the upper end clamping of described awl tube.
3, push rod push type sensitive switch according to claim 1 is characterized in that: the described upward shell (3-1) or lower casing (3-2) outside are provided with the shell guide pillar (3-3) that a pair of vertical symmetry is arranged.
4, push rod push type sensitive switch according to claim 1 is characterized in that: described collar flange (1-1) is being located to have breach, is being located to have breach with respect to movable contact spring locator card (2-1), having the breach that slides up and down and cooperate with shell guide pillar (3-3) in its outer rim with respect to movable contact spring suspended wall (2-2).
5, push rod push type sensitive switch according to claim 1, it is characterized in that: described fixed touching plate (4) both sides are bent into 90 ° of angles and are inserted in lower casing (3-2) corresponding groove (3-5), have draw-in groove (4-1) in the middle of described fixed touching plate (4) bending part, this draw-in groove (4-1) passes the insulating barrier of drawing lead (6) and clamps its copper core.
6, push rod push type sensitive switch according to claim 1 is characterized in that: have the 4-8 bar on described awl tube (3-4) cylindrical shell and axially connect straight trough.
7, push rod push type sensitive switch according to claim 2 is characterized in that: described pressure ring (1) middle part barrel bore is a bit larger tham the big end external diameter of awl tube (3-4), and its both difference is in the 1-3mm scope.
8, push rod push type sensitive switch according to claim 1 is characterized in that: the distance of described movable contact spring contact (2-3) and corresponding fixed touching plate (4) is in the 0.5-2mm scope.
9, push rod push type sensitive switch according to claim 1 is characterized in that: the initial force of described back-moving spring (5) is between 400g-1000g, and the initial force of described tolerance spring (8) is between 1000g-2000g.
10, push rod push type sensitive switch according to claim 1 is characterized in that: the big end of described awl tube (3-4) and small end external diameter difference are in the 0.5-2.5mm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058535 CN2788329Y (en) | 2005-05-18 | 2005-05-18 | Gas stopcock handspike press type microswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058535 CN2788329Y (en) | 2005-05-18 | 2005-05-18 | Gas stopcock handspike press type microswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788329Y true CN2788329Y (en) | 2006-06-14 |
Family
ID=36786625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520058535 Expired - Fee Related CN2788329Y (en) | 2005-05-18 | 2005-05-18 | Gas stopcock handspike press type microswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788329Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634873B (en) * | 2008-07-25 | 2011-10-12 | 宏碁股份有限公司 | Computer device and machine shell thereof |
| CN104896529A (en) * | 2014-03-09 | 2015-09-09 | 宁波宏昌燃具有限公司 | Pulse ignition contact piece switch used for gas stove valve |
| CN106861010A (en) * | 2015-12-14 | 2017-06-20 | 北京谊安医疗系统股份有限公司 | It is a kind of to remove wushu microswitch for switching ventilation gas circuit |
-
2005
- 2005-05-18 CN CN 200520058535 patent/CN2788329Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634873B (en) * | 2008-07-25 | 2011-10-12 | 宏碁股份有限公司 | Computer device and machine shell thereof |
| CN104896529A (en) * | 2014-03-09 | 2015-09-09 | 宁波宏昌燃具有限公司 | Pulse ignition contact piece switch used for gas stove valve |
| CN106861010A (en) * | 2015-12-14 | 2017-06-20 | 北京谊安医疗系统股份有限公司 | It is a kind of to remove wushu microswitch for switching ventilation gas circuit |
| CN106861010B (en) * | 2015-12-14 | 2019-04-16 | 北京谊安医疗系统股份有限公司 | It is a kind of to remove wushu microswitch for switching ventilation gas circuit |
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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 |