CN205863045U - Safety switch - Google Patents
Safety switch Download PDFInfo
- Publication number
- CN205863045U CN205863045U CN201620726382.0U CN201620726382U CN205863045U CN 205863045 U CN205863045 U CN 205863045U CN 201620726382 U CN201620726382 U CN 201620726382U CN 205863045 U CN205863045 U CN 205863045U
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- contact
- open
- movable contact
- close door
- binding post
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Abstract
The utility model discloses safety switch, including housing, shift knob, automatically isolation door and the main spring for shift knob；Shift knob includes that movable contact, movable contact rear end are provided with protuberance, and housing is provided with the first cavity volume, the second cavity volume, the first binding post and the second binding post, and isolation door includes line traffic control, assembly pulley and the open and close door of band resetting-mechanism automatically；Press the keying that can be controlled open and close door when compressing switch button by line traffic control and assembly pulley, when open and close door is closed tightly under the effect of resetting-mechanism, the first binding post in first cavity volume can be closed, prevent steam from entering in the first cavity volume, the first binding post and the second binding post is made to be in off-state completely, waterproof and be difficult to make moist aging, security performance is high.
Description
Technical field
This utility model relates to circuit controller, and it is safety switch.
Background technology
Switch is the device for control circuit power on/off, but owing to lying substantially in the state of energising (i.e. in switch
Voltage is maintained on live wire), therefore when switching the not used time, the circuit in switch still leaves electricity, when liquid access switch, by
Still maintaining voltage on live wire, the moment that liquid enters makes the short circuit in switch, causes electrical equipment or switch to burn, deposits
In higher safety issue.
Meanwhile, if switch is in the environment that steam is higher for a long time, steam is aging by acceleration switch internal circuit
And oxidation, cause on-off control malfunctioning.
The most how stoping the circuit in liquid or moisture switch is a problem demanding prompt solution.
Utility model content
Goal of the invention of the present utility model is the problem in order to solve the circuit in liquid or moisture switch, it is provided that
Safety switch, waterproof and be difficult to make moist aging, security performance is high..
In order to realize foregoing invention purpose, this utility model have employed techniques below scheme: safety switch, including housing,
Shift knob, automatically isolation door and the main spring for shift knob；Described shift knob includes pressing splenium and activity is touched
Head, presses splenium and is positioned at outside housing, and movable contact rear end is provided with protuberance, and main spring is sheathed on movable contact side surface；Described housing
It is provided with the first cavity volume and the second cavity volume, in housing, is provided with the first binding post and the second terminals being parallelly mounted to housing side
Son, the first binding post end is provided with the first contact site, and the first contact site is in the first cavity volume, and the second binding post end sets
Having the second contact site can being conductively connected with protuberance, the second contact site is in the inwall of the second cavity volume, movable contact, protuberance and master
Spring is respectively positioned in the second cavity volume；Described automatic isolation door includes line traffic control, assembly pulley and the open and close door of band resetting-mechanism, lives
Moving contact is connected with open and close door indexing by the cooperation of assembly pulley and line traffic control, and described open and close door is positioned at the first inner chamber and second
Between chamber；Movable contact controls the keying of open and close door by pullling line traffic control.
When shift knob pushes on movable contact moves forward and promotes main spring to compress, movable contact pulls open described by line traffic control
Open and close door, movable contact front end is pressed on the first contact site, and the protuberance on movable contact compresses the of contact the second binding post
Two contact sites, the second contact site, protuberance, the front end of movable contact and the first contact site are sequentially communicated；When shift knob resets,
Protuberance on described movable contact leaves the second contact site of described second binding post, and open and close door resets and closes, and switch
Disconnect.
The open and close mode of open and close door can use upset to open and close, it is also possible to using reciprocatingly slides realizes opening and closing.
Preferably, the first contact site of described first binding post uses memory alloy material, and the first contact site includes end
Portion, the kink making arc contact portion separate with movable contact with heating for the arc contact portion contacted with movable contact；Described end
Portion is positioned at the two ends of the first contact site and fixes with enclosure interior, and described bending part is between arc contact portion and end.
Preferably, being provided with the chute for open and close door telescopic slide in described housing, the resetting-mechanism of open and close door includes resetting
Spring, back-moving spring is positioned at chute and presses on one end of open and close door.
Preferably, described second contact site is provided with the inclined-plane of movable contact rear end.
Preferably, described second contact site is the becket on band inclined-plane, and the inclined-plane of becket is towards movable contact rear end.
Preferably, described shift knob is directed downward or is horizontally disposed with.
Preferably, it is provided with two in described housing altogether and automatically completely cuts off door about shift knob center specular.
Preferably, the side that said two open and close door is relative is equipped with sealing strip.
Preferably, described open and close door bottom is provided with spacing base plate, is provided with sealing between described spacing base plate and chute diapire
Circle.
Compared with prior art, have employed the safety switch of technique scheme, have the advantages that
Use safety switch of the present utility model, can effectively barrier liquid and steam be invaded by isolation door automatically
Enter in on-off circuit, when shift knob is ejected by shift knob main spring in the case of not stressing, and open and close door is by reset machine
The effect of structure is ejected, and the first cavity volume and the second cavity volume is completely cut off and comes, effectively stops steam or liquid to enter the first binding post
With in its first contact site, make the circuit in switch completely cut off completely and come, it is ensured that shift knob press lower before, on-off circuit is in
Definitely off-state, the first contact site is in completely enclosed state.
When shift knob pressurized moves forward, main spring is compressed, and movable contact is followed shift knob and together advanced and pass through
Line traffic control and assembly pulley drive open and close door to open, and open and close door compressing resetting-mechanism is also opened, and enables movable contact to contact first and connects
First contact site of line terminals, simultaneously the second contact site of protrusions contact second binding post of movable contact, the first terminals
Son and the second binding post realize electric connection by the effect of the first contact site-movable contact the-the second contact site.
Therefore, when shift knob ejects, switch safety is high, and liquidproof anti-steam is hardly damaged with aging.
Accompanying drawing explanation
Fig. 1 is the sectional view (switch is off) of this utility model safety switch embodiment 1；
Fig. 2 is the sectional view (switch is in closure state) of this utility model safety switch embodiment 1；
Fig. 3 is that (switch is in disconnection shape for the sectional view of automatically isolation door in this utility model safety switch embodiment 1
State)；
Fig. 4 is that (switch is in closed form for the sectional view of automatically isolation door in this utility model safety switch embodiment 1
State)；
Fig. 5 is the first contact site and the connection diagram (normal condition) of movable contact in embodiment 1；
Fig. 6 is the first contact site and the connection diagram (overload) of movable contact in embodiment 1；
Fig. 7 is the sectional view (switch is in closure state) of this utility model safety switch embodiment 2；
Fig. 8 is the structural representation of the second contact site in this utility model safety switch embodiment 2.
Reference: 1, housing；10, the first binding post；100, the first contact site；1000, end；1001, arc touches
Portion；1002, kink；11, the second binding post；110, the second contact site；20, line traffic control；21, open and close door；210, back-moving spring；
211, chute；212, spacing base plate；213, sealing ring；214, sealing ring；215, sealing strip；22, assembly pulley；3, shift knob；
30, main spring；31, movable contact；310, protuberance.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
Embodiment 1:
Safety switch as shown in Figures 1 to 6, including housing 1, shift knob 3, two to isolation door automatically with for opening
Closing the main spring 30 of button, isolation door is about shift knob 3 center specular automatically.
Shift knob 3 includes pressing splenium and movable contact 31, presses splenium and is positioned at outside housing 1, and movable contact 31 rear end is provided with
Protuberance 310, main spring 30 is sheathed on movable contact 31 side surface.
Housing 1 is provided with the first cavity volume and the second cavity volume, is provided with the first terminals being parallelly mounted to housing side in housing 1
Son 10 and second binding post 11, the first binding post 10 end is provided with the first contact site 100, and the first contact site 100 is positioned at the
In one cavity volume, the second binding post 11 end is provided with the second contact site 110 can being conductively connected, the second contact site with protuberance 310
110 inwalls being positioned at the second cavity volume, movable contact 31, protuberance 310 and main spring 30 are respectively positioned in the second cavity volume.
Automatically isolation door includes that the open and close door 21 of line traffic control 20, assembly pulley 22 and band resetting-mechanism, movable contact 31 lead to
Cross the cooperation of assembly pulley 22 and line traffic control 20 to be connected with open and close door 21 indexing, open and close door 21 be positioned at the first inner chamber and the second inner chamber it
Between；Movable contact 31 controls the keying of open and close door by pullling line traffic control 20.
Being provided with the chute 211 for open and close door 21 telescopic slide in housing, the resetting-mechanism of open and close door 21 includes back-moving spring
210, back-moving spring 210 is positioned at chute and presses on one end of open and close door 21, and open and close door 21 back and forth can be slided in chute 211
Dynamic, it is similar to gate or pushes, back-moving spring 210 provides the elastic force resetted for open and close door 21.
As shown in figures 1 and 3, when shift knob 30 is ejected by shift knob 3 main spring 30 in the case of not stressing, open
Close door 21 to be ejected by the effect of back-moving spring 210, the open and close door of both sides all to middle part Guan Bi and compress, by the first cavity volume and
Second cavity volume isolation is come, and effectively stops steam or liquid to enter in the first binding post 10 and its first contact site 100, makes out
Inside the Pass circuit completely cut off come completely, it is ensured that before shift knob presses 3 times, on-off circuit is in absolute off-state, and first connects
Contact portion 100 is in completely enclosed state.
When shift knob 3 pressurized moves forward, main spring 30 is compressed, and movable contact 31 is followed shift knob 3 and together advanced
And driving open and close door 21 to open by line traffic control 20 and assembly pulley 22, open and close door 21 is oppressed back-moving spring 210 and opens to both sides, in
Portion forms a passage passed through for movable contact 31, makes movable contact 31 can contact the first contact of the first binding post 10
Portion 100, the protuberance 310 of movable contact 31 contacts the second contact site 110 of the second binding post 11, the first binding post 10 simultaneously
Electric connection is realized by the effect of first contact site 100-movable contact 31-the second contact site 110 with the second binding post 10.
Second contact site 110 is provided with the inclined-plane of movable contact 31 rear end, and the second contact site 110 can increase it with convex
The contact area in portion 310, effectively avoids contact with bad phenomenon, improves safety.
Shift knob 3 direction upward, then when there being liquid to come in, by action of gravity can directly by shift knob 3 with
The gap of the second cavity volume enters in the second cavity volume, and then enters into assembly pulley 22 and the sky of line traffic control 20 of isolation door automatically
In, and threaten the first contact site 100 in the first cavity volume.
Therefore, shift knob 3 is directed downward or is horizontally disposed with, and liquid can be made to be not easy directly and entered by action of gravity
In second cavity volume.
The side that two open and close doors 21 are relative is equipped with sealing strip 215.When open and close door closes, sealing strip 215 can have
The seal improving open and close door of effect, prevents liquid and steam from being entered in the first cavity volume by the second cavity volume.
Open and close door 21 bottom is provided with spacing base plate 212, is provided with sealing ring between spacing base plate 212 and chute 211 diapire
213, the pressure applied spacing base plate 212 by back-moving spring 210, spacing base plate 212 compresses sealing ring 213, improves airtight
Property and water proofing property.
The line traffic control 20 in the present embodiment exit in the second cavity volume is positioned at protuberance 310 position, therefore sets in exit
Being equipped with sealing ring 214, when movable contact 31 resets under the effect of main spring 30 elastic force, protuberance 310 is pressed in sealing ring
214, the steam being prevented effectively from the second cavity volume enters in the cavity at assembly pulley 22 and line traffic control 20 place.
At above three, sealing member (sealing strip 215, sealing ring 213 and sealing ring 214) is all to be at shift knob 3 not to be subject to
Power state, the elastic force effect of main spring 30 and back-moving spring 210 makes sealing member be compressed, thus plays sealing effectiveness.
First contact site 100 of the first binding post 10 uses memory alloy material, and the first contact site 100 includes end
1000, for making arc contact portion 1001 curved with what movable contact 31 separated with the arc contact portion 1001 of movable contact contact and heating
Folding part 1002；End 1000 is positioned at the two ends of the first contact site 100 and fixes with housing 1 inside, and kink 1002 is positioned at arc
Between contact portion 1001 and end 1000.
The memory alloy material used in the present embodiment has a feature, i.e. when the first contact site 100 temperature rises, curved
The bending angle of folding part 1002 can become big, and end 1000 is fixing for the first contact site 100 two ends.
As shown in Figure 5 and Figure 6, when the power switching vigour part is excessive or transships, the electricity passed through in the first contact site 100
Stream is relatively big, and the heat of generation becomes many, and the first contact site 100 bulk temperature rises, owing to two ends, end 1000 are fixing, therefore
Kink 1002 shrinks and close to two ends, and arc contact portion 1001 entirety offsets to the left side, produces spacing also with movable contact 31
Disconnecting with movable contact 31, now switch is off, it is to avoid electrical appliance transships, it is ensured that safety.
Embodiment 2:
The present embodiment is relative to the difference of embodiment 1: second contact site 110 becket in band inclined-plane, becket
Inclined-plane is towards movable contact 31 rear end, and ringwise, movable contact 30 is round table-like to protuberance 310.
The effect of its correspondence is as follows: first, and the annular chamfer of becket constitutes a conical surface, and the second contact site 110 is permissible
Increase the contact area of itself and protuberance 310, effectively avoid contact with bad phenomenon, improve safety.
Secondly, the cone match annular protrusion 310 of becket, protuberance 310 can be made concentric with becket, it is ensured that the two
Concentric rate, makes the top of contact can be directed at the arc contact portion 1001 of the first contact site 100 accurately, it is to avoid produce during misalignment
Loose contact.
It is above preferred implementation of the present utility model, for the person of ordinary skill of the art without departing from this reality
On the premise of new principle, it is also possible to make some modification and improvement, these also should be regarded as protection domain of the present utility model.
Claims (9)
1. safety switch, it is characterised in that: include housing (1), shift knob (3), automatically isolation door and press for switch
The main spring (30) of button；
-described shift knob (3) includes pressing splenium and movable contact (31), presses splenium and is positioned at housing (1) outward, movable contact (31)
Rear end is provided with protuberance (310), and main spring (30) is sheathed on movable contact (31) side surface；
-described housing (1) is provided with the first cavity volume and the second cavity volume, is provided with and is parallelly mounted to the first of housing side in housing (1)
Binding post (10) and the second binding post (11), the first binding post (10) end is provided with the first contact site (100), and first connects
Contact portion (100) is positioned at the first cavity volume, and the second binding post (11) end is provided with and second can connect with what protuberance (310) were conductively connected
Contact portion (110), the second contact site (110) is positioned at the inwall of the second cavity volume, movable contact (31), protuberance (310) and main spring
(30) it is respectively positioned in the second cavity volume；
-described automatic isolation door includes the open and close door (21) of line traffic control (20), assembly pulley (22) and band resetting-mechanism, movable tactile
Head (31) is connected by the cooperation of assembly pulley (22) and line traffic control (20) and open and close door (21) are indexable, and described open and close door (21) is positioned at the
Between one cavity volume and the second cavity volume；Movable contact (31) controls the keying of open and close door by pullling line traffic control (20)；
When shift knob (3) pushes on movable contact (31) moves forward and promotes main spring (30) to compress, movable contact (31) passes through
Line traffic control (20) pulls open described open and close door (21), and movable contact (31) front end is pressed on the first contact site (100), movable contact (31)
On protuberance (310) compress contact the second binding post (11) the second contact site (110), the second contact site (110), protuberance
(310), front end and first contact site (100) of movable contact (31) is sequentially communicated；
When shift knob (3) resets, the protuberance (310) on described movable contact (31) leaves described second binding post (11)
The second contact site (110), open and close door resets and closes, and switching off.
Safety switch the most according to claim 1, it is characterised in that: the first contact of described first binding post (10)
Portion (100) uses memory alloy material, and the first contact site (100) includes end (1000), for the arc with movable contact contact
Shape contact portion (1001) and heating make the kink (1002) that arc contact portion (1001) separates with movable contact (31)；Described end
(1000) being positioned at the two ends of the first contact site (100) and fix with housing (1) inside, described kink (1002) is positioned at arc and touches
Between portion (1001) and end (1000).
Safety switch the most according to claim 1, it is characterised in that: it is provided with for open and close door (21) flexible sliding in described housing
Dynamic chute (211), the resetting-mechanism of open and close door (21) include back-moving spring (210), back-moving spring (210) be positioned at chute and
Press on one end of open and close door (21).
Safety switch the most according to claim 1, it is characterised in that: described second contact site (110) is provided with activity
The inclined-plane of contact (31) rear end.
Safety switch the most according to claim 1, it is characterised in that: described second contact site (110) gold in band inclined-plane
Belonging to ring, the inclined-plane of becket is towards movable contact (31) rear end.
Safety switch the most according to claim 1, it is characterised in that: described shift knob (3) is directed downward or level sets
Put.
Safety switch the most according to claim 1, it is characterised in that: it is provided with two in described housing altogether about shift knob
(3) center specular automatically completely cut off door.
Safety switch the most according to claim 7, it is characterised in that: the side that said two open and close door (21) is relative is all provided with
There is sealing strip (215).
Safety switch the most according to claim 3, it is characterised in that: described open and close door (21) bottom is provided with spacing base plate
(212), it is provided with sealing ring (213) between described spacing base plate (212) and chute (211) diapire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726382.0U CN205863045U (en) | 2016-07-07 | 2016-07-07 | Safety switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726382.0U CN205863045U (en) | 2016-07-07 | 2016-07-07 | Safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205863045U true CN205863045U (en) | 2017-01-04 |
Family
ID=57646003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620726382.0U Active CN205863045U (en) | 2016-07-07 | 2016-07-07 | Safety switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205863045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024450A (en) * | 2016-07-07 | 2016-10-12 | 温州国好机电科技有限公司 | Safety switch |
| CN107336063A (en) * | 2017-01-24 | 2017-11-10 | 张夏英 | A kind of plate cutting switching device |
| CN107336280A (en) * | 2017-01-24 | 2017-11-10 | 张夏英 | A kind of switching device of sheet material cutting machine |
-
2016
- 2016-07-07 CN CN201620726382.0U patent/CN205863045U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024450A (en) * | 2016-07-07 | 2016-10-12 | 温州国好机电科技有限公司 | Safety switch |
| CN107336063A (en) * | 2017-01-24 | 2017-11-10 | 张夏英 | A kind of plate cutting switching device |
| CN107336280A (en) * | 2017-01-24 | 2017-11-10 | 张夏英 | A kind of switching device of sheet material cutting machine |
| CN107336063B (en) * | 2017-01-24 | 2019-02-12 | 江山市美轩门业有限公司 | A kind of plate cutting switching device |
| CN107336280B (en) * | 2017-01-24 | 2019-02-12 | 江山市美轩门业有限公司 | A kind of switching device of plate cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170703 Address after: 510800, Guangzhou City, Huadu District, Guangdong Province Xinhua Street, Dongguan village 3 team, Jin Hong and industrial zone, B building, two or three floor Patentee after: Guangzhou Li Yuan Industrial switch manufacturing Co., Ltd. Address before: Longwan Yongning road hit Street District of Wenzhou City, Zhejiang province 325000 No. 143 second floor East first Patentee before: WENZHOU GUOHAO ELECTROMECHANICAL TECHNOLOGY CO., LTD. |