CN201877377U - Push-button safety switch - Google Patents
Push-button safety switch Download PDFInfo
- Publication number
- CN201877377U CN201877377U CN2010206349329U CN201020634932U CN201877377U CN 201877377 U CN201877377 U CN 201877377U CN 2010206349329 U CN2010206349329 U CN 2010206349329U CN 201020634932 U CN201020634932 U CN 201020634932U CN 201877377 U CN201877377 U CN 201877377U
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- spring
- rod
- conducting element
- push
- gold plaque
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- Expired - Lifetime
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Abstract
The utility model discloses a push-button safety switch which comprises a switching button, an upper push rod, an upper push rod spring, a push rod fixing plate, a lower push rod, a lower push rod spring, a press rod guide cylinder, a press rod, a press rod spring, a guide rod return spring, a guide rod, a first side cover, a steering wheel return torsion spring, a steering wheel, a support rod, a support rod spring, a switch shell, a first conducting element, a second conducting element, a second side cover, a third conducting element, a double-alloy piece and an indicating lamp. The push-button safety switch is characterized by being convenient to use, low in cost, high in safety factors and the like, is not affected by external force, and can perform trip free.
Description
Technical field
The utility model relates to a kind of button safety switch, particularly a kind of button safety switch with overload protection function.
Background technology
Existing key switch generally is divided into two kinds: a kind of is the key switch of band conducting indicator light, and another kind is the key switch with overload protection function.And the key switch with overload protection function is divided into following a few class again usually according to structural principle:
1, adopt the key switch of band conducting indicator light to engage with fuse; be that the input of key switch or output and fuse are cascaded; utilize the fusing of fuse that overload protection is provided, this key switch does not have reusability, thereby utilization rate is more and more lower.
2, adopt common by build switch with one independently overload protective device engage, the shortcoming of this key switch is both uneconomical, processing inconvenience again.
The utility model content
The utility model purpose is at the deficiencies in the prior art, and a kind of button safety switch is provided, and the utility model is highly sensitive, and volume is little, and is easy to use, cheap, reusable.
The purpose of this utility model is achieved through the following technical solutions: a kind of button safety switch, it comprises: switching push button, upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring, guide post back-moving spring, guide post, first side cover, deflecting roller reset button spring, deflecting roller, support bar, support bar spring, switch case, first conducting element, second conducting element, second side cover, the 3rd conducting element, pairing gold plaque, indicator light.Wherein, described upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring, guide post back-moving spring, guide post, deflecting roller reset button spring, deflecting roller, support bar, support bar spring, switch case, first conducting element, second conducting element, the 3rd conducting element, pairing gold plaque and indicator light all are installed in the switch case.Switching push button is fixed on the switch case top, and first side cover and second side cover are fixed on the switch case both sides.
Further, described switching push button, upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring join successively.Pairing gold plaque two ends join with first conducting element, second conducting element respectively, guide post one end dynamically contacts with the pairing gold plaque, the other end and deflecting roller offset, and indicator light one pin is connected with second conducting element, and another pin is connected with the 3rd conducting element.
Further,, described pairing gold plaque comprises pairing gold plaque driving part, pairing gold plaque conducting position and pairing gold plaque fixed position.Described pairing gold plaque driving part is connected with guide post, and pairing gold plaque conducting position is dynamic with second conducting element and contacts, and pairing gold plaque fixed position is fixed on first conducting element.
Further, described guide post one end is dynamic with pairing gold plaque driving part and contacts, and the guide post other end and deflecting roller are inconsistent, and the guide post middle part is made a caulking groove and is connected with switch case.
Further, described support bar comprises up driving part, support bar down driving part, support bar transmission position and support bar motive position.Described strut transmission position is connected with the support bar spring, and the support bar motive position is connected with switch case.
Further, described depression bar driving section is connected with the lower push-rod spring, and another driving section of depression bar is connected with Pressure-bar spring, and depression bar drive division and deflecting roller are inconsistent.
Further, described indicator light is nested in ejector pin retaining plate one caulking groove, and indicator light one pin is connected with second conducting element, and another pin strides across a muscle position of ejector pin retaining plate and a plate washer of switch case is connected with the 3rd conducting element.
Compare with present technology, the utlity model has following effect:
1, because the utility model adopts the major control element of pairing gold plaque as circuit, when circuit overloads and temperature rise when acquiring a certain degree, this element meeting temperature distortion, the moment redirect, pairing gold plaque one end promotes guide post makes deflecting roller banking, after deflecting roller tilted, depression bar and support bar lost the strong point simultaneously.At this moment, the support bar spring will produce an active force, promote support bar and will make the pairing gold plaque separate second conducting element, thereby reach the power supply that cuts off first conducting element and second conducting element, thereby obtain overload protection function.
2, because overload protection function is to realize by assisting of lever principle; can compensate the decay of pairing gold plaque shift length when redirect effectively; guarantee the coverage when the pairing gold plaque separates with second conducting element, can effectively prevent the arcing effect between the pairing gold plaque and conducting element under high pressure.
3, because of depression bar of the present utility model is to contact with support bar by deflecting roller, and deflecting roller can be movable, so even switching push button under the situation that pushed down by external force, guide post also banking can promote deflecting roller, makes the free escape of pairing gold plaque.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified;
Fig. 1 is the three-dimensional exploded view of key switch of the present utility model;
Among Fig. 2, (a) be the front view that key switch of the present utility model is in conducting state; (b) be the rearview that key switch of the present utility model is in conducting state;
Among Fig. 3, (a) be the front view that key switch of the present utility model is in off-state; (b) be the rearview that key switch of the present utility model is in off-state;
Among Fig. 4, be that key switch of the present utility model is subjected to external force to influence the front view of free escape state (a); (b) be that key switch of the present utility model is subjected to external force to influence the rearview of free escape state;
Fig. 5 is the perspective view of the pairing gold plaque of key switch of the present utility model;
Fig. 6 is the perspective view of the guide post of key switch of the present utility model;
Fig. 7 is the perspective view of the support bar of key switch of the present utility model;
Fig. 8 is the perspective view of the depression bar of key switch of the present utility model;
Fig. 9 is the indicator light connection layout of key switch of the present utility model;
Among the figure: switching push button 1, upper push-rod 2, upper push-rod spring 3, ejector pin retaining plate 4, lower push-rod 5, lower push-rod spring 6, depression bar guide cylinder 7, depression bar 8, Pressure-bar spring 9, guide post back-moving spring 10, guide post 11, first side cover 12, deflecting roller reset button spring 13, deflecting roller 14, support bar 15, support bar spring 16, switch case 17, first conducting element 18, second conducting element 19, second side cover 20, the 3rd conducting element 21, pairing gold plaque 22, indicator light 23.
Embodiment
In the utility model button safety switch, switch case is to have key opening and conducting element jack; The deformability of pairing gold plaque expanded by heating stretches, and electric current is had highly sensitive electric component, and when electric current was excessive, stretchings of can expanding along with the rising of temperature of this element to the crooked redirect of opposite direction, thereby reached the purpose of cutting off the electricity supply.Another effect of pairing gold plaque is to be responsible for being communicated with between conductive part and the drive division, serves as a connection.
Conductive part comprises first conducting element, second conducting element, the 3rd conducting element, indicator light.First conducting element, one pin connects the pairing gold plaque, plays the effect of supporting the pairing gold plaque, and another pin extends to outside the switch case.Second conducting element, one pin extends to outside the switch case, and another pin is dynamic with the pairing gold plaque and contacts.The 3rd conducting element one pin extends to outside the switch case, and another pin is connected with second conducting element by indicator light.Indicator light is nested in ejector pin retaining plate one caulking groove, and a pin is connected with second conducting element, and another pin overstated that switch case one plate washer was connected with the 3rd conducting element.
Drive division comprises: one switches button, a upper push-rod, and a lower push-rod, a depression bar, a deflecting roller, a guide post, a support bar is formed.Switching push button stretches out outside the switch case, and is connected with upper push-rod.Lower push-rod forms dentation outward, is used with upper push-rod, forms a self-locking mechanism, is provided with spring between upper push-rod and the lower push-rod.The lower push-rod other end links to each other with depression bar by spring, and being responsible for will be from the force transmission of upper push-rod to depression bar.Deflecting roller one end and depression bar are inconsistent, and the other end and support bar are tangent, and inside is provided with guide groove, can be up and down under active force or tilt, and also can be used as the strong point when static and use, the next door is provided with reduction torsion spring.Guide post is provided with drive division and links to each other with the pairing gold plaque, transmits the active force from the pairing gold plaque, and changes the direction of its active force, and the other end and the deflecting roller of guide post are inconsistent, is provided with caulking groove in the middle of the guide post, links to each other with switch case.Support bar one end is provided with the circular hole position and is connected with switch case, and can rotate in certain stroke, and the other end is connected with the pairing gold plaque, the redirect of control pairing gold plaque, and deflecting roller is supported in the middle part.
The driving section comprises: a upper push-rod spring, push rod spring once, a Pressure-bar spring, a support bar spring, a deflecting roller reduction torsion spring, a guide post back-moving spring.The upper push-rod spring is located between upper push-rod and the lower push-rod, mainly is active force is passed to lower push-rod or active force of self generation by upper push-rod, in addition, works upper push-rod and the switching push button effect supported when static state.The lower push-rod spring is connected between lower push-rod and the depression bar, is responsible for active force is passed to depression bar by lower push-rod.The support bar spring connects between support bar and the switch case, when static, is a strong point of support bar, in the time of dynamically, will produce an active force opposite with upper and lower push rod active force.The deflecting roller reduction torsion spring is connected out between housing and the deflecting roller, mainly is that deflecting roller is resetted.The guide post back-moving spring is to be connected between guide post and the switch case, mainly is that guide post is resetted.
As shown in Figure 1, key switch of the present utility model comprises: switching push button 1, upper push-rod 2, upper push-rod spring 3, ejector pin retaining plate 4, lower push-rod 5, lower push-rod spring 6, depression bar guide cylinder 7, depression bar 8, Pressure-bar spring 9, guide post back-moving spring 10, guide post 11, first side cover 12, deflecting roller reset button spring 13, deflecting roller 14, support bar 15, support bar spring 16, switch case 17, first conducting element 18, second conducting element 19, second side cover 20, the 3rd conducting element 21, pairing gold plaque 22, indicator light 23.Wherein, first conducting element 18, second conducting element 19, the 3rd conducting element 21 and indicator light 23 are formed conductive part; Switching push button 1, upper push-rod 2, ejector pin retaining plate 4, lower push-rod 5, depression bar 8, guide post 11, deflecting roller 14, support bar 15 are formed drive division; Upper push-rod spring 3, lower push-rod spring 6, Pressure-bar spring 9, guide post reduction torsion spring 10, deflecting roller reduction torsion spring 13 and support bar spring 16 are formed the driving section, and active force is passed to another part from a part.
Upper push-rod 2, upper push-rod spring 3, ejector pin retaining plate 4, lower push-rod 5, lower push-rod spring 6, depression bar guide cylinder 7, depression bar 8, Pressure-bar spring 9, guide post back-moving spring 10, guide post 11, deflecting roller reset button spring 13, deflecting roller 14, support bar 15, support bar spring 16, switch case 17, first conducting element 18, second conducting element 19, the 3rd conducting element 21, pairing gold plaque 22 and indicator light 23 all are installed in the switch case 17.Switching push button 1 is fixed on switch case 17 tops, and first side cover 12 and second side cover 20 are fixed on switch case 17 both sides.
Switching push button 1, upper push-rod 2, upper push-rod spring 3, ejector pin retaining plate 4, lower push-rod 5, lower push-rod spring 6, depression bar guide cylinder 7, depression bar 8, Pressure-bar spring 9 join successively.Pairing gold plaque 22 two ends join with first conducting element 18, second conducting element 19 respectively, guide post 11 1 ends dynamically contact with pairing gold plaque 22, the other end and deflecting roller 14 offset, and indicator light 23 1 pins are connected with second conducting element 19, and another pin is connected with the 3rd conducting element 21.
Being illustrated in figure 2 as the cutaway view under the key switch of the present utility model place conducting state, (a) being front view, (b) is rearview, and switching push button 1 is subjected to external force to promote upper push-rod 2 and lower push-rod 5 self-lockings (adopt the slip teeth structure to realize self-locking between the upper and lower push rod.Promptly when the first time, lower push-rod 5 was influenced by external force, lower push-rod 5 embedded in the caulking groove of ejector pin retaining plates 4, can not become flexible; When lower push-rod 5 was subjected to external force once more and influences, lower push-rod 5 broke away from ejector pin retaining plates 4 caulking grooves), lower push-rod 5 is given depression bar 8 by lower push-rod spring 6 with force transmission, and forces lower push-rod 5 to embed in the caulking groove of ejector pin retaining plates 4, and lower push-rod 5 can not be got loose.After depression bar 8 is subjected to active force, one end conflict deflecting roller 14, deflecting roller 14 is moved downward, the other end links to each other with switch case 17 by Pressure-bar spring 9, deflecting roller 14 is under active force, force support bar 15 to move downward, support bar 15 1 ends link to each other with switch case 17 by support bar spring 16, the redirect of other end 15b control pairing gold plaque 22.After pairing gold plaque 22 was subjected to active force from support bar 15, Xiang Yiduan was out of shape redirect, thereby first conducting element 18 is connected with second conducting element 19.Simultaneously, an end 11a of guide post 11 contacts with the driving part 22a of pairing gold plaque 22.
Be illustrated in figure 3 as key switch of the present utility model and be in cutaway view under the off-state, (a) be front view, (b) be rearview, switching push button 1 is subjected to external force to promote upper push-rod 2, upper push-rod 2 is given lower push-rod 5 by upper push-rod spring 3 with force transmission, because what upper push-rod 2 and lower push-rod 5 were adopted is self-locking mechanism, so after lower push-rod 5 is subjected to active force once more, break away from the caulking groove of ejector pin retaining plate 4.Simultaneously, support bar 15 loses the active force from deflecting roller 14.At this moment, support bar spring 16 self produces an active force that makes progress, promote support bar 15 upwards, forcing deflecting roller 14 to promote depression bar 8 moves upward, simultaneously, the other end 15a of support bar will promote pairing gold plaque 22 and be out of shape redirect to opposite direction, and first conducting element 18 and second conducting element 19 are disconnected.
Being illustrated in figure 4 as key switch of the present utility model is subjected to external force to influence free escape state cutaway view, (a) be front view, (b) be rearview, pushed down by external force stuck when switching push button 1, during current overload, and pairing gold plaque 22 stretching of expanding along with the rising of temperature, at first the driving part 22a of pairing gold plaque 22 produces an active force and drives guide post 11 motions, change the direction of active force simultaneously, deflecting roller 14 is tilted, break away from the control of depression bar 8.After the active force from depression bar 8 disappears.At this moment, support bar spring 16 self will produce an active force, promote support bar 15 motions, make the up driving part 15a of support bar 15 promote 22 redirects of pairing gold plaque.At this moment, the conducting position 22b of pairing gold plaque 22 separates with second conducting element 19, thereby has cut off being connected between first conducting element 18 and second conducting element 19.Simultaneously, because the inclination of deflecting roller 14 makes depression bar 8 lose the strong point, be subjected under the influence from upper push-rod spring 3 and the active force of lower push-rod spring 6, depression bar 8 down moves.After depression bar 8 down runs to certain stroke, to lose from the active force of upper push-rod spring 3 with lower push-rod spring 6, at this moment, Pressure-bar spring 9 self will produce an active force in contrast, force depression bar 8 up to move, promote lower push-rod 5 by lower push-rod spring 6, make lower push-rod 5 break away from the caulking groove of ejector pin retaining plate 4, reset thereby promote upper push-rod 2.Simultaneously, deflecting roller reduction torsion spring 13 will promote deflecting roller 14 and reset.
Figure 5 shows that pairing gold plaque 22 perspective view of the utility model key switch, pairing gold plaque driving part 22a is connected with guide post 11, pairing gold plaque conducting position 22b is dynamic with second conducting element 19 and contacts, and pairing gold plaque fixed position 22c is fixed on first conducting element 18.
Figure 6 shows that guide post 11 perspective view of the utility model key switch, guide post one end 11a is dynamic with pairing gold plaque driving part 22a and contacts, guide post other end 11b and deflecting roller 14 are inconsistent, and the guide post middle part is made a caulking groove 11c and is connected with switch case 17.
Figure 7 shows that the perspective view of the support bar 15 of key switch of the present utility model, support bar up driving part 15a drives up escape of pairing gold plaque 22, support bar down driving part 15b drives down escape of pairing gold plaque 22, support bar transmission position 15c is connected with support bar spring 16, and support bar motive position 15d is connected with switch case 17.
Figure 8 shows that the perspective view of the depression bar 8 of key switch of the present utility model, depression bar driving section 8a is connected with lower push-rod spring 6, and another driving section of depression bar 8c is connected with Pressure-bar spring 9, and depression bar drive division 8b and deflecting roller 14 are wanted to conflict.
Figure 9 shows that indicator light 23 connection layouts of key switch of the present utility model, indicator light 23 is nested in the ejector pin retaining plate 4 one caulking groove 4a, indicator light 23 1 pins are connected with second conducting element 19, and another pin strides across a muscle position 4b of ejector pin retaining plate 4 and a plate washer 17a of switch case 17 is connected with the 3rd conducting element 21.23 liang of pins of indicator light are isolated from a muscle position 4b of ejector pin retaining plate 4 and plate washer 17a both sides of switch case 17 respectively, to guarantee the electrical distance between two pins.
Claims (7)
1. button safety switch, it is characterized in that it comprises: switching push button, upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring, guide post back-moving spring, guide post, first side cover, deflecting roller reset button spring, deflecting roller, support bar, support bar spring, switch case, first conducting element, second conducting element, second side cover, the 3rd conducting element, pairing gold plaque, indicator light; Wherein, described upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring, guide post back-moving spring, guide post, deflecting roller reset button spring, deflecting roller, support bar, support bar spring, switch case, first conducting element, second conducting element, the 3rd conducting element, pairing gold plaque and indicator light all are installed in the switch case; Switching push button is fixed on the switch case top, and first side cover and second side cover are fixed on the switch case both sides.
2. according to the described button safety switch of claim 1, it is characterized in that described switching push button, upper push-rod, upper push-rod spring, ejector pin retaining plate, lower push-rod, lower push-rod spring, depression bar guide cylinder, depression bar, Pressure-bar spring join successively; Pairing gold plaque two ends join with first conducting element, second conducting element respectively, guide post one end dynamically contacts with the pairing gold plaque, the other end and deflecting roller offset, and indicator light one pin is connected with second conducting element, and another pin is connected with the 3rd conducting element.
3. according to the described button safety switch of claim 2, it is characterized in that described pairing gold plaque comprises pairing gold plaque driving part, pairing gold plaque conducting position and pairing gold plaque fixed position; Described pairing gold plaque driving part is connected with guide post, and pairing gold plaque conducting position is dynamic with second conducting element and contacts, and pairing gold plaque fixed position is fixed on first conducting element.
4. according to the described button safety switch of claim 2, it is characterized in that described guide post one end is dynamic with pairing gold plaque driving part and contacts, the guide post other end and deflecting roller are inconsistent, and the guide post middle part is made a caulking groove and is connected with switch case.
5. according to the described button safety switch of claim 2, it is characterized in that described support bar comprises up driving part, support bar down driving part, support bar transmission position and support bar motive position; Described strut transmission position is connected with the support bar spring, and the support bar motive position is connected with switch case.
6. according to the described button safety switch of claim 2, it is characterized in that described depression bar driving section is connected with the lower push-rod spring, another driving section of depression bar is connected with Pressure-bar spring, and depression bar drive division and deflecting roller are inconsistent.
7. according to the described button safety switch of claim 2, it is characterized in that, described indicator light is nested in ejector pin retaining plate one caulking groove, indicator light one pin is connected with second conducting element, and another pin strides across a muscle position of ejector pin retaining plate and a plate washer of switch case is connected with the 3rd conducting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206349329U CN201877377U (en) | 2010-11-26 | 2010-11-26 | Push-button safety switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206349329U CN201877377U (en) | 2010-11-26 | 2010-11-26 | Push-button safety switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877377U true CN201877377U (en) | 2011-06-22 |
Family
ID=44165288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206349329U Expired - Lifetime CN201877377U (en) | 2010-11-26 | 2010-11-26 | Push-button safety switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005348A (en) * | 2010-11-26 | 2011-04-06 | 慈溪云飞电气有限公司 | Push-button safety switch |
-
2010
- 2010-11-26 CN CN2010206349329U patent/CN201877377U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005348A (en) * | 2010-11-26 | 2011-04-06 | 慈溪云飞电气有限公司 | Push-button safety switch |
| CN102005348B (en) * | 2010-11-26 | 2013-03-27 | 慈溪云飞电气有限公司 | Push-button safety switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110622 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |