CN104409277A - Air pressure switch - Google Patents
Air pressure switch Download PDFInfo
- Publication number
- CN104409277A CN104409277A CN201410782543.3A CN201410782543A CN104409277A CN 104409277 A CN104409277 A CN 104409277A CN 201410782543 A CN201410782543 A CN 201410782543A CN 104409277 A CN104409277 A CN 104409277A
- Authority
- CN
- China
- Prior art keywords
- contact
- fixed contact
- binding post
- blast switch
- spring
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Push-Button Switches (AREA)
Abstract
The invention provides an air pressure switch, and mainly solves the problems of the existing air pressure switch that when an annular diaphragm is unevenly stressed, the annular diaphragm has high probability of shaking or deviating, and accordingly, the air pressure switch fails and the performance is unstable. The air pressure switch is characterized in that a pin is further arranged, the pin comprises a fixing part, a positioning part and a wiring part, the fixing part is fixedly connected with a movable spring, a positioning hole is formed in the positioning part, a convex pole is inserted into the positioning hole, and the wiring part is connected with a plug assembly through a lead. The air pressure switch has the advantages that the pin is arranged on the movable spring, and the convex pole is inserted into the positioning hole; the structure is simple and compact, movement of a push plate is limited, and the performance of the air pressure switch is more stable.
Description
Technical field
The present invention and switching technique field, be specifically related to a kind of blast switch.
Background technology
Blast switch is a kind of detecting element, and being mainly used in needs to detect blast mechanically, and as pneumatic press, airoperated clipper, gas heater etc. use the electric equipment products of combustion gas class, it utilizes the pressure of gas to promote sensitive switch to realize.
General blast switch, comprise base, upper cover, annular diaphragm, push pedal, movable contact spring, plug-assembly, contact mechanism, annular diaphragm is connected with push pedal outward flange, and cavity is separated into two chambers, make annular diaphragm produce distortion by the different pressures of two chambers, promote push pedal work, but during ring film unbalance stress, easy shake or offset, makes blast switch lose efficacy, unstable properties.
Summary of the invention
In order to overcome the deficiency of background technology, the invention provides a kind of blast switch, when solving ring film unbalance stress in existing blast switch, easily shaking or offseting, blast switch being lost efficacy, the problem of unstable properties.
The technical solution adopted in the present invention: a kind of blast switch, comprises base, upper cover, annular diaphragm, push pedal, movable contact spring, plug-assembly, contact mechanism; Described base and upper cover form airtight cavity, and described annular diaphragm is connected with push pedal outward flange, and are located between described base and upper cover, cavity are separated into two chambers; Described contact mechanism comprises the first fixed contact, the second fixed contact that are connected with plug-assembly and is arranged on the moving contact of movable contact spring one end, and described moving contact is between the first fixed contact, the second fixed contact; Described push pedal center is provided with the projection that can promote movable contact spring, and described base is provided with the flexible restoring organ that movable contact spring can be made to reset;
Also be provided with pin, described pin comprises fixed part, location division, wire connecting portion, and described fixed part is fixedly connected with movable contact spring, and described location division is provided with location hole, and described projection inserts in location hole, and described wire connecting portion is connected with plug-assembly by a lead-in wire.
Described movable contact spring is provided with alignment pin, and described alignment pin top is provided with the groove corresponding with projection.
Described resetting device comprises back-moving spring, set screw, and described set screw is arranged on base, and described back-moving spring is arranged between alignment pin and set screw.
Described plug-assembly comprises the first binding post, the second binding post, the 3rd binding post, described first binding post and the second binding post are L font, first fixed contact, the second fixed contact are separately positioned on the first binding post, the second binding post, and described 3rd binding post is connected with lead-in wire.
Described wire connecting portion is provided with downward opening first link slot, and described 3rd binding post is provided with the second opening up link slot, and described lead-in wire is L-shaped, and its two ends are located at the first link slot, the second link slot respectively.
Described first fixed contact, the second fixed contact surface are provided with Contact Tooth, described moving contact are also provided with the Contact Tooth corresponding with the first fixed contact, the second fixed contact.
Described moving contact and the first fixed contact, the second fixed contact interlaced arrangement.
The side at described bending shell fragment two ends is equipped with short slot, and described movable contact spring is provided with the first buckling groove, the second buckling groove that block mutually with short slot respectively; Described first buckling groove comprises the Access Division of extended distance diminishing guide part and guide part inside from outside to inside; The groove of described second buckling groove in " convex " type structure, and its both sides are also provided with positive stop lug boss.
The invention has the beneficial effects as follows: adopt above scheme, movable contact spring arranges pin, and projection is inserted in location hole, not only simple and compact for structure, and the motion of push pedal is limited, make the performance of blast switch more stable.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention cross-sectional view.
Fig. 2 is the enlarged diagram of A in Fig. 1.
Fig. 3 is embodiment of the present invention structural representation.
Fig. 4 is embodiment of the present invention pin configuration schematic diagram.
Fig. 5 is embodiment of the present invention movable contact spring and bending elastic piece structure schematic diagram.
The structural representation of Fig. 6 embodiment of the present invention movable contact spring.
Fig. 7 is the enlarged diagram of B in Fig. 6.
In figure, 1-base, 2-upper cover, 3-annular diaphragm, 4-push pedal, 41-projection, 5-movable contact spring, 51-first buckling groove, 511-guide part, 512-Access Division, 52-second buckling groove, 53-positive stop lug boss, 6-pin, 61-fixed part, 62-location division, 621-location hole, 63-wire connecting portion, 631-first connecting groove, 7-alignment pin, 71-groove, 8-goes between, 9-first fixed contact, 10-second fixed contact, 11-moving contact, 12-back-moving spring, 13-set screw, 14-first binding post, 15-second binding post, 16-the 3rd binding post, 161-second connecting groove, 17-Contact Tooth, 18-bends shell fragment, 181-short slot.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
As shown in the figure, a kind of blast switch, comprises base 1, upper cover 2, annular diaphragm 3, push pedal 4, movable contact spring 5, plug-assembly, contact mechanism; Described base 1 forms airtight cavity with upper cover 2, and described annular diaphragm 3 is connected with push pedal 4 outward flange, and is located between described base 1 and upper cover 2, cavity is separated into two chambers;
Described plug-assembly is arranged on base 1, and comprise the first binding post 14, second binding post 15, the 3rd binding post 16, described contact mechanism comprises the first fixed contact 9, second fixed contact 10 and moving contact 11;
Wherein said first binding post 14 and the second binding post 15 are in L font, and the first fixed contact 9, second fixed contact 10 is separately positioned on the first binding post 14, second binding post 15, described moving contact 11 is arranged on one end of movable contact spring 5, and between the first fixed contact 9, second fixed contact 10;
Described push pedal 4 center is provided with projection 41, can promote movable contact spring 5 and move down, and described base 1 is provided with flexible restoring organ, and movable contact spring 5 can be made to reset;
Also be provided with pin 6, described pin 6 comprises fixed part 61, location division 62, wire connecting portion 63, described fixed part 61 is fixedly connected with movable contact spring 5, described location division 62 is provided with location hole 621, described projection 41 inserts in location hole 621, described wire connecting portion 63 is provided with downward opening first link slot 631, described 3rd binding post 16 is provided with the second opening up link slot 161, described wire connecting portion 63 is connected with the lead-in wire 8 of the 3rd binding post 16 by a L-shaped, and 8 two ends that go between are located at the first link slot 631, second link slot 161 respectively.
This pin 6 is integral type structure, not only simple and compact for structure, and when projection 41 moves along with push pedal 4, projection 41 can be subject to the position-limiting action of location hole 621, makes projection 41 that skew can not occur and swings, make the performance of blast switch more stable.
In addition, described movable contact spring 5 is provided with alignment pin 7, and described alignment pin 7 top is provided with the groove 71 corresponding with projection 41, and when projection 41 moves down, projection 41 can withstand in groove 71, further increases the stability of the performance of blast switch.
Wherein, described resetting device comprises back-moving spring 12, set screw 13, described set screw 13 is arranged on base 1, described back-moving spring 12 is arranged between alignment pin 6 and set screw 13, the elastic force of back-moving spring 12 can also be adjusted by adjusting bolt 13, make blast switch can meet more working range.
As shown in Figure 2, described first fixed contact 9, second fixed contact 10 surface is provided with Contact Tooth 17, described moving contact 11 is also provided with the Contact Tooth corresponding with the first fixed contact 9, second fixed contact 10, and described moving contact 11 and the first fixed contact 9, second fixed contact 10 interlaced arrangement.
Moving contact and the first fixed contact, the second fixed contact are contacted by Contact Tooth and connect, and not only increase contact area, and contact-making surface can be avoided to be covered by dust, serviceability is more stable.
As illustrated in figs. 5-7, the side at described bending shell fragment 18 two ends is equipped with short slot 181, described movable contact spring 5 be provided with respectively with the first buckling groove 51, second buckling groove 52 of short slot 181 phase card; Described first buckling groove 51 comprises the Access Division 512 of extended distance diminishing guide part 511 and guide part inside from outside to inside; The groove of described second buckling groove 52 in " convex " type structure, and its both sides are also provided with positive stop lug boss 53.
When bending shell fragment 18 is installed, first by the short slot 181 of one end and the second buckling groove 52 phase card, the short slot 181 of the other end is along guide part 511 slippage of the first buckling groove 51, know and stick into Access Division 512, not only structure is simple, and easy for installation, positive stop lug boss 53 can carry out a position-limiting action to bending shell fragment 18 in addition, avoid bending shell fragment 18 to come off from the second buckling groove 52, clamping is more firm, guarantees the job stability of blast switch.
Claims (8)
1. a blast switch, comprises base (1), upper cover (2), annular diaphragm (3), push pedal (4), is provided with movable contact spring (5), plug-assembly, the contact mechanism of bending shell fragment (18); Described base (1) and upper cover (2) form airtight cavity, and described annular diaphragm (3) is connected with push pedal (4) outward flange, and is located between described base (1) and upper cover (2), cavity is separated into two chambers; Described contact mechanism comprises the first fixed contact (9), the second fixed contact (10) that are connected with plug-assembly and is arranged on the moving contact (11) of movable contact spring (5) one end, and described moving contact (11) is positioned between the first fixed contact (9), the second fixed contact (10); Described push pedal (4) center is provided with the projection (41) that can promote movable contact spring (5), and described base (1) is provided with the flexible restoring organ that movable contact spring (5) can be made to reset;
It is characterized in that: be also provided with pin (6), described pin (6) comprises fixed part (61), location division (62), wire connecting portion (63), described fixed part (61) is fixedly connected with movable contact spring (5), described location division (62) is provided with location hole (621), described projection (41) inserts in location hole (621), and described wire connecting portion (63) is connected with plug-assembly by a lead-in wire (8).
2. blast switch according to claim 1, is characterized in that: described movable contact spring (5) is provided with alignment pin (7), and described alignment pin (7) top is provided with the groove (71) corresponding with projection (41).
3. blast switch according to claim 2, it is characterized in that: described resetting device comprises back-moving spring (12), set screw (13), described set screw (13) is arranged on base (1), and described back-moving spring (12) is arranged between alignment pin (6) and set screw (13).
4. blast switch according to claim 1, it is characterized in that: described plug-assembly comprises the first binding post (14), the second binding post (15), the 3rd binding post (16), described first binding post (14) and the second binding post (15) are in L font, first fixed contact (9), the second fixed contact (10) are separately positioned on the first binding post (14), the second binding post (15), and described 3rd binding post (16) is connected with lead-in wire (8).
5. blast switch according to claim 4, it is characterized in that: described wire connecting portion (63) is provided with downward opening first link slot (631), described 3rd binding post (16) is provided with opening up the second link slot (161), described lead-in wire is L-shaped, and its two ends are located at the first link slot (631), the second link slot (161) respectively.
6. blast switch according to claim 1, it is characterized in that: described first fixed contact (9), the second fixed contact (10) surface are provided with Contact Tooth (17), described moving contact (11) is also provided with the Contact Tooth corresponding with the first fixed contact (9), the second fixed contact (10).
7. blast switch according to claim 6, is characterized in that: described moving contact (11) and the first fixed contact (9), the second fixed contact (10) interlaced arrangement.
8. blast switch according to claim 1, it is characterized in that: the side at described bending shell fragment (18) two ends is equipped with short slot (181), described movable contact spring (5) is provided with the first buckling groove (51), the second buckling groove (52) that block mutually with short slot (181) respectively; Described first buckling groove (51) comprises the Access Division (512) of extended distance diminishing guide part (511) and guide part inside from outside to inside; The groove of described second buckling groove (52) in " convex " type structure, and its both sides are also provided with positive stop lug boss (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782543.3A CN104409277B (en) | 2014-12-18 | 2014-12-18 | Blast switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782543.3A CN104409277B (en) | 2014-12-18 | 2014-12-18 | Blast switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104409277A true CN104409277A (en) | 2015-03-11 |
| CN104409277B CN104409277B (en) | 2016-06-01 |
Family
ID=52646896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410782543.3A Active CN104409277B (en) | 2014-12-18 | 2014-12-18 | Blast switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104409277B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298361A (en) * | 2016-10-10 | 2017-01-04 | 黄思亮 | A kind of blast switch of vertical movement |
| CN107610973A (en) * | 2017-10-10 | 2018-01-19 | 浙江三好汽车部件有限公司 | A kind of pressure monitor and there is its gas-fired equipment |
| CN110400722A (en) * | 2019-07-02 | 2019-11-01 | 浙江华地电子有限公司 | A kind of blast switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201032617Y (en) * | 2007-02-28 | 2008-03-05 | 浙江力夫机电制造有限公司 | Water level control switch |
| CN202678211U (en) * | 2012-06-21 | 2013-01-16 | 芜湖乐佳电器有限公司 | Water level switch of washing machine |
| CN202855632U (en) * | 2012-10-30 | 2013-04-03 | 浙江华地电子有限公司 | Wind pressure switch |
| CN203456379U (en) * | 2013-09-25 | 2014-02-26 | 温州九和电器科技有限公司 | Wind pressure switch |
| CN204242945U (en) * | 2014-12-18 | 2015-04-01 | 浙江华地电子有限公司 | Blast switch |
-
2014
- 2014-12-18 CN CN201410782543.3A patent/CN104409277B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201032617Y (en) * | 2007-02-28 | 2008-03-05 | 浙江力夫机电制造有限公司 | Water level control switch |
| CN202678211U (en) * | 2012-06-21 | 2013-01-16 | 芜湖乐佳电器有限公司 | Water level switch of washing machine |
| CN202855632U (en) * | 2012-10-30 | 2013-04-03 | 浙江华地电子有限公司 | Wind pressure switch |
| CN203456379U (en) * | 2013-09-25 | 2014-02-26 | 温州九和电器科技有限公司 | Wind pressure switch |
| CN204242945U (en) * | 2014-12-18 | 2015-04-01 | 浙江华地电子有限公司 | Blast switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298361A (en) * | 2016-10-10 | 2017-01-04 | 黄思亮 | A kind of blast switch of vertical movement |
| CN107610973A (en) * | 2017-10-10 | 2018-01-19 | 浙江三好汽车部件有限公司 | A kind of pressure monitor and there is its gas-fired equipment |
| CN107610973B (en) * | 2017-10-10 | 2020-09-11 | 浙江三好智能科技有限公司 | Pressure monitor and gas equipment with same |
| CN110400722A (en) * | 2019-07-02 | 2019-11-01 | 浙江华地电子有限公司 | A kind of blast switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104409277B (en) | 2016-06-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 169, Wei 16th Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, 325604 Patentee after: ZHEJIANG HUADI ELECTRONIC Co.,Ltd. Address before: No. 237 Weiji Road, Leqing Economic Development Zone, Wenzhou City, Zhejiang Province, 325600 Patentee before: ZHEJIANG HUADI ELECTRONIC Co.,Ltd. |