CN203397940U - Position switch - Google Patents
Position switch Download PDFInfo
- Publication number
- CN203397940U CN203397940U CN201320492327.6U CN201320492327U CN203397940U CN 203397940 U CN203397940 U CN 203397940U CN 201320492327 U CN201320492327 U CN 201320492327U CN 203397940 U CN203397940 U CN 203397940U
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- CN
- China
- Prior art keywords
- lever wheel
- push rod
- housing
- contact
- lug boss
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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 - Lifetime
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Abstract
The utility model relates to a switch, and particularly relates to a position switch. The position switch comprises a micro switch which is installed in an inner cavity of a casing and connected with a power supply, wherein a contact of the micro switch is provided with a lever wheel above controlling on-off of the contact, and the bottom part of the lever wheel is fixed on the casing of the micro switch; the lever wheel is provided with an ejector rod above, the middle part of the ejector rod is provided with a limiting boss, the rear end of the ejector rod penetrates through and is fixed on a guide body I in the inner cavity of the casing, a section of the ejector rod between the guide body I and the limiting boss is sleeved with a reset spring, and the front end of the ejector rod penetrates through and is fixed on a guide body II in the inner cavity of the casing and then penetrates through the casing, thereby enabling the limiting boss to be located between the guide body I and the guide body II. Because of the structure provided by the utility model, the position switch has the advantages that the control precision is improved, the use cost is reduced, and the service life is prolonged.
Description
Technical field
The utility model relates to switch, specifically a kind of position switch that improves control precision, reduces use cost and increase the service life.
Background technology
Travel position switch is a kind of conventional little electric current master control electrical apparatus.Utilize the collision of manufacturing machine moving component (being actuating member) to make its contact (being the contact of sensitive switch) action realize connection or disjunction control circuit, reach certain control object.Conventionally, this class switch is used to position or the stroke of limit mechanical motion, make movable machinery by certain position or stroke automatically stop, counter motion, variable motion or back and forth movement etc. automatically.Travel switch can be arranged on the object (as driving, door etc., being called for short animal) of the upper or motion of relatively static object (as fixed mount, doorframe etc., be called for short still life).When animal approaches still life, the contact of the connecting rod driving switch of switch causes closed contact disjunction or the junction closure of disconnection.The action of going to control circuit and mechanism by the change of make and break contact opening and closing state.
The mechanical stroke position switch of prior art is generally that the stroke end of actuating member contact direct and sensitive switch is perpendicular.In environment for use, this just has higher required precision to installing to adjust, otherwise actuating member will push up bad sensitive switch, or the action of uncontrollable sensitive switch.Due to this structure, in use, actuating member kinematic accuracy error is larger, make the stroke of actuating member over the stroke of sensitive switch, easily damage sensitive switch, whole position switch cannot be used, improve maintenance cost, also just made use cost higher.
When the position switch of said structure is used under the environment such as humidity, dust, salt fog, strenuous vibration, can produce corrosion, wearing and tearing etc. and reduce control precision, this has just reduced the useful life of service behaviour and position switch.
In sum, the position switch control precision of prior art is low, use cost is high and useful life is short.
Summary of the invention
The purpose of this utility model is to provide a kind of position switch that improves control precision, reduces use cost and increase the service life.
For realizing the technical scheme that the utility model above-mentioned purpose adopts, be: a kind of position switch, comprises the sensitive switch being arranged in housing inner chamber with power turn-on; Wherein:
The contact top of described sensitive switch is provided with controls the lever wheel that contact opens and closes, and this lever wheel bottom is fixed on the housing of sensitive switch;
Described lever wheel top is provided with push rod, the middle part of push rod has positive stop lug boss, the rear end of push rod penetrates in the guide way I being fixed in housing inner chamber, in the bar section of the push rod between this guide way I and positive stop lug boss, cover has back-moving spring, the front end of push rod passes housing after penetrating in the guide way II being fixed in housing inner chamber, makes positive stop lug boss between guide way I and guide way II;
Under normality, lever wheel top is pushed against by the radial end face of positive stop lug boss, makes lever wheel press to contact and opens sensitive switch; When actuating member is moved to the front end of push rod and is tight against push rod, move backward, make positive stop lug boss separated with lever wheel, lever wheel moves up, and makes contact return close sensitive switch.
Due to said structure, make actuating member no longer directly and contact, also be no longer vertical position relationship, but parallel relation, and the positive stop lug boss of said structure is steady contact with lever wheel, makes contact stress equalization, has also just extended the useful life of sensitive switch when having improved control precision, also just extend the useful life of whole switch, and then reduced use cost.
Accompanying drawing explanation
The indefiniteness embodiment that the utility model can provide by accompanying drawing further illustrates.
Fig. 1 is cutaway view of the present utility model.
Fig. 2 is perspective view of the present utility model.
Fig. 3 is the perspective view of the another direction of the utility model.
In figure: 1, housing; 2, sensitive switch; 3, contact; 4, lever wheel; 5, push rod; 6, positive stop lug boss; 7, guide way I; 8, back-moving spring; 9, guide way II; 10, flexible protective cover; 11, wire protective jacket; 12, installing hole; 13, upper shell; 14, lower house; 15, bolt; 16, sealing strip.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Referring to accompanying drawing 1 to 3, a kind of position switch, comprises the sensitive switch 2 being arranged in housing 1 inner chamber with power turn-on; Wherein:
Contact 3 tops of described sensitive switch 2 are provided with controls the lever wheel 4 that contact 3 opens and closes, and these lever wheel 4 bottoms are fixed on the housing of sensitive switch 2;
Described lever wheel 4 tops are provided with push rod 5, the middle part of push rod 5 has positive stop lug boss 6, the rear end of push rod 5 penetrates in the guide way I 7 being fixed in housing 1 inner chamber, in the bar section of the push rod 5 between this guide way I 7 and positive stop lug boss 6, cover has back-moving spring 8, the front end of push rod 5 passes housing 1 after penetrating in the guide way II 9 being fixed in housing 1 inner chamber, makes positive stop lug boss 6 between guide way I 7 and guide way II 9;
Under normality, lever wheel 4 tops are pushed against by the radial end face of positive stop lug boss 6, make lever wheel 4 press to contact 3 and open sensitive switch 2; When actuating member is moved to the front end of push rod 5 and is tight against push rod 5, move backward, make positive stop lug boss 6 separated with lever wheel 4, lever wheel 4 moves up, and makes contact 3 returns close sensitive switch 2.In this embodiment, due to described structure, actuating member is no longer directly contacted with contact 3, also be no longer vertical position relationship, but parallel relation, and the positive stop lug boss 6 of said structure is steady contacts with lever wheel 4, make contact stress equalization, when having improved control precision, also just extend the useful life of sensitive switch, also just extended the useful life of whole switch, and then reduced use cost.
For improving the stationarity that contacts or disconnect between positive stop lug boss 6 and lever wheel 4, in above-described embodiment, preferably: described positive stop lug boss 6 is coniform, be convenient to contact or disconnect with lever wheel 4.
For further improving the stationarity that contacts or disconnect between positive stop lug boss 6 and lever wheel 4, in above-described embodiment, preferably: described lever wheel 4 tops have curved portions, be convenient to contact or disconnect with positive stop lug boss 6.
The validity and reliability using in adverse circumstances for improving this structure, in above-described embodiment, preferably: described push rod 5 stretches out and is set with flexible protective cover 10 in the bar section of housing 1.
For further improving the validity and reliability that said structure is used in adverse circumstances, in above-described embodiment, preferably: be provided with the wire protective jacket 11 that power supply source line penetrates on described housing 1.
For ease of workman, at environment for use place, install efficiently, in above-described embodiment, preferably: be provided with installing hole 12 on described housing 1.
For ease of manufacturing and assembling, in above-described embodiment, preferably: described housing 1 is comprised of upper shell 13 and lower house 14 couplings, is fixed as one between described upper shell 13 and lower house 14 by bolt 15.
For further improving the reliability of said structure and increasing the service life, in above-described embodiment, preferably: be connected with sealing strip 16 between described upper shell 13 and lower house 14.
In above-described embodiment, under free state, the positive stop lug boss 6 of push rod contacts with lever wheel 4, and then lever wheel 4 is oppressed the contact 3 of sensitive switches 2, contact 3 actions of sensitive switch 2, realize circuit turn-on state, when actuating member action, contact and push after push rod 5, positive stop lug boss 6 retreats, the contact 3 of sensitive switch 2 is discharged, realize circuit and disconnect.The function of spring 8 is after actuating member is return, and its elastic force resets positive stop lug boss 6, and contact 3 actions that compressing lever wheel 4 makes sensitive switch 2, realize circuit conducting again.In said structure, push rod 5 is parallel with sensitive switch 2, thereby can effectively protect sensitive switch 2, and strengthens impulse stroke, avoids actuating member impulsive force to damage sensitive switch 2.At actuating member, oppress for a long time the occasion of sensitive switch, structure described in the utility model makes sensitive switch 2 in free state just, better protects sensitive switch.Structure described in the utility model has good dust and moisture performance simultaneously, and vibration resistance impact resistance, also has certain anti-electromagnetic-radiation performance.
Obviously, all embodiment of foregoing description are a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the category of the utility model protection.
In sum, this structure has improved control precision, has reduced use cost and extended useful life.
Claims (8)
1. a position switch, comprises the sensitive switch (2) being arranged in housing (1) inner chamber with power turn-on; It is characterized in that:
Contact (3) top of described sensitive switch (2) is provided with controls the lever wheel (4) that contact (3) opens and closes, and this lever wheel (4) bottom is fixed on the housing of sensitive switch (2);
Described lever wheel (4) top is provided with push rod (5), the middle part of push rod (5) has positive stop lug boss (6), the rear end of push rod (5) penetrates in the guide way I (7) being fixed in housing (1) inner chamber, in the bar section of the push rod (5) between this guide way I (7) and positive stop lug boss (6), cover has back-moving spring (8), the front end of push rod (5) passes housing (1) after penetrating in the guide way II (9) being fixed in housing (1) inner chamber, and positive stop lug boss (6) is positioned between guide way I (7) and guide way II (9);
Lever wheel under normality (4) top is pushed against by the radial end face of positive stop lug boss (6), makes lever wheel (4) press to contact (3) and opens sensitive switch (2); When actuating member is moved to the front end of push rod (5) and is tight against push rod (5), move backward, make positive stop lug boss (6) separated with lever wheel (4), lever wheel (4) moves up, and makes contact (3) return close sensitive switch (2).
2. position switch according to claim 1, is characterized in that: described positive stop lug boss (6), for coniform, is convenient to contact or disconnect with lever wheel (4).
3. position switch according to claim 1 and 2, is characterized in that: described lever wheel (4) top has curved portions, is convenient to contact or disconnect with positive stop lug boss (6).
4. position switch according to claim 1, is characterized in that: described push rod (5) stretches out in the bar section of housing (1) and is set with flexible protective cover (10).
5. according to the position switch described in claim 1 or 4, it is characterized in that: on described housing (1), be provided with the wire protective jacket (11) that power supply source line penetrates.
6. according to the position switch described in claim 1 or 4, it is characterized in that: on described housing (1), be provided with installing hole (12).
7. according to the position switch described in claim 1 or 4, it is characterized in that: described housing (1) is comprised of upper shell (13) and lower house (14) coupling, between described upper shell (13) and lower house (14), by bolt (15), is fixed as one.
8. position switch according to claim 7, is characterized in that: between described upper shell (13) and lower house (14), be connected with sealing strip (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492327.6U CN203397940U (en) | 2013-08-13 | 2013-08-13 | Position switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492327.6U CN203397940U (en) | 2013-08-13 | 2013-08-13 | Position switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397940U true CN203397940U (en) | 2014-01-15 |
Family
ID=49909453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320492327.6U Expired - Lifetime CN203397940U (en) | 2013-08-13 | 2013-08-13 | Position switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397940U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679561A (en) * | 2014-11-17 | 2016-06-15 | 昌河飞机工业（集团）有限责任公司 | Contact type switching apparatus |
| CN107437470A (en) * | 2017-08-11 | 2017-12-05 | 江门市英合创展电子有限公司 | A kind of stroke indication sensor |
| DE102017130812A1 (en) * | 2017-12-20 | 2019-06-27 | Veka Ag | Switching contact unit for mounting on a fold between a window frame and a window or door leaf |
| DE102018120249A1 (en) * | 2018-08-20 | 2020-02-20 | Zippy Technology Corp. | Stroke adjustment cover for clip microswitch |
-
2013
- 2013-08-13 CN CN201320492327.6U patent/CN203397940U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679561A (en) * | 2014-11-17 | 2016-06-15 | 昌河飞机工业（集团）有限责任公司 | Contact type switching apparatus |
| CN105679561B (en) * | 2014-11-17 | 2018-01-16 | 昌河飞机工业（集团）有限责任公司 | A kind of switching device of contact |
| CN107437470A (en) * | 2017-08-11 | 2017-12-05 | 江门市英合创展电子有限公司 | A kind of stroke indication sensor |
| CN107437470B (en) * | 2017-08-11 | 2020-02-11 | 江门市英合创展电子有限公司 | Stroke indication sensor |
| DE102017130812A1 (en) * | 2017-12-20 | 2019-06-27 | Veka Ag | Switching contact unit for mounting on a fold between a window frame and a window or door leaf |
| DE102018120249A1 (en) * | 2018-08-20 | 2020-02-20 | Zippy Technology Corp. | Stroke adjustment cover for clip microswitch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |