CN209447721U - A kind of button switch - Google Patents

Abstract

The utility model discloses a kind of button switches, including switch case, switch button, press-button structure, positioned at the intracorporal movable contact spring of switch housing and static contact, the movable contact spring is connected by push rod with the press-button structure, the static contact includes normally opened static contact and the normally closed static contact between normally opened static contact, the normally closed static contact is equipped with normally closed stationary contact, the normally opened static contact is equipped with normally opened stationary contact, the both ends of the movable contact spring are two-way contact, the two-way contact, normally opened stationary contact and normally closed stationary contact are located along the same line, contact spring is also fixedly installed between the movable contact spring and push rod, the push rod is additionally provided with push rod reset spring.The utility model structure is simple, convenient for installation and maintenance；Stable structure uses smoothness；Better reduction, spring is not easy to fatigue, long service life；Contact contact is stablized, and is not easy to loosen, highly-safe；It is normally opened that monolithic contact has 1NC() and 1NO(it is normally closed) function, use scope is wide.

Description

A kind of button switch

Technical field

The utility model belongs to switching technique field, specifically a kind of button switch.

Background technique

Button switch, which refers to, pushes transmission mechanism using button, and movable contact and stationary contact is made to be switched on or switched off and realize circuit The switch of conversion, button switch are that a kind of structure is simple, using very extensive master control electrical apparatus, in electric automatic control circuit In, for issuing control signal manually with control contactor, relay, electromagnetic starter etc..

109216077 A of Chinese patent CN discloses a kind of button switch, is equipped with button mechanism in switch case；It presses Button mechanism includes the moving contact and static contact being oppositely arranged, and moving contact is installed on moving contact mounting base, and moving contact mounting base can live It is dynamic to be installed in switch case, resetting apparatus is equipped between moving contact and moving contact mounting base；Static contact is fixedly arranged on switch case Interior, static contact is connected to binding post, and binding post extends to outside switch case；It is equipped with and uses between moving contact mounting base and switch case Auxiliary body in fixed moving contact position.The button switch is used by being provided between moving contact mounting base and switch case Auxiliary body in fixed moving contact position can effectively ensure that switch under pressing state, between static contact and moving contact Contact guarantees the stability of button switch in use.But the monolithic contact of the button switch only has and has 1NC One of (normally opened) or 1NO(are normally closed) function, use scope is limited, also, the reset effect of the switch button is general, uses Service life is not long and do not have arc-suppression function, and safety is to be improved.

Utility model content

To achieve the goals above, the utility model proposes a kind of button switch, simple and stable structure, using smoothness, Use scope is wide, highly-safe.

The technical solution of the utility model is as follows: a kind of button switch including switch case, is mounted in switch case Switch button, the press-button structure being connected with switch button are located at the intracorporal movable contact spring of switch housing and static contact, and the movable contact spring is logical It crosses push rod to be connected with the press-button structure, can be moved in the switch case with the pressing of switch button, the stationary contact Piece is fixed in the switch case, and the static contact is equipped with two groups, and every group of static contact includes a pair of normally closed static contact and a pair Normally opened static contact, the normally closed static contact is between normally opened static contact, and the normally closed static contact is close to the switch button one Outward bending is held to form bending one, the bending one is equipped with normally closed stationary contact, and the normally opened static contact bends inwards to form bending Two, bending two is equipped with normally opened stationary contact, and the movable contact spring is located between bending one and bending two, and the both ends of the movable contact spring are double To contact, the two-way contact, normally opened stationary contact and normally closed stationary contact are located along the same line, between the movable contact spring and push rod It is additionally provided with contact spring, the contact spring both ends are fixedly connected with movable contact spring and push rod respectively, and the push rod is additionally provided with push rod Reset spring, the press-button structure are similar with the structure of push type ball pen.

The principles of the present invention are as follows: be connected to when movable contact spring is located at normally closed static contact, i.e., the described two-way contact with it is normally closed When stationary contact point contact, the button switch is in normally off, at this point, the push rod reset spring and contact spring are in compression State；Switch button is pressed, the button switch still keeps normally off at this time, unclamps the switch button, and the push rod is multiple Position spring keeps the push rod protruding with switch button, and the contact spring has compressive state to switch to tension state, will be described Movable contact spring pulls, and the two-way contact of the movable contact spring is separated with normally closed stationary contact and contacted with normally opened static contact, at this point, described normal It closes static contact and movable contact spring disconnects, the normally opened static contact is connected to movable contact spring, and the button switch is in normally open.

Preferably, normally closed static contact and normally opened static contact described in every group are mounted in same contact base, the contact base Installation connects the switch case, is easily installed use.

Preferably, the contact base connects the switch case by buckle structure installation, including it is located on contact base Card base and the buckle in switch case, it is easy for installation.

Preferably, being equipped with push rod sliding slot in the contact base, the push rod can slide in the push rod sliding slot, described Push rod reset spring one end is fixedly connected with the contact base, and one end is fixedly connected at the top of the push rod.

Preferably, the push rod is equipped with movable contact spring mounting groove, the movable contact spring is arranged through the movable contact spring mounting groove, Each movable contact spring is all connected with there are two the symmetrical contact spring, and it is close that described contact spring one end is fixed in the movable contact spring At end position, the other end is fixed in the push rod, and the contact spring is such between the movable contact spring and switch button Structure enables to the movable contact spring smooth with the mobile stabilization of the push rod, and stabilized structure.

Preferably, the press-button structure includes button sleeve, Self locking gears and button shell, the button sleeve, from Lock gear and the switch button are slidably mounted on the button interior of shell, and the button sleeve is cylindrical shape, end with The switch button is fixedly connected, and the button interior of shell is equipped with several along the equally distributed sliding pawl of the button shell, The sliding pawl is equipped with stair-stepping slip teeth far from switch button one end, is equipped with guide groove, the Self locking gears between the sliding pawl Outside is equipped with lock tooth corresponding with the guide groove, and the lock tooth ends are equipped with inclined-plane corresponding with slip teeth, the button sleeve Outside is equipped with the self-locking sliding tooth of several groups, and the end of the self-locking sliding tooth is equipped with end face corresponding with the lock inclined-plane of tooth, There are three self-locking sliding tooth is all provided with described in every group, including two outer sliding tooths and it is located in the middle interior sliding tooth, two described outer Sliding tooth is corresponding with two adjacent lock teeth, and the interior sliding tooth is corresponding with the guide groove, and extends out to the guiding In slot, also, when the button sleeve is pressed inward against with the switch button, the self-locking sliding tooth always can with it is described It is inconsistent to lock tooth, the button cartridge exterior is also arranged with push-button reset spring, described in the push-button reset spring one end connection Button sleeve, one end connect the button shell.

The use principle of the press-button structure of the utility model are as follows: the button switch is in normally off, it is described at this time from The cunning pawl on the lock tooth and the button shell on gear is locked to conflict, and the lock tooth position is in stair-stepping on the sliding pawl In slip teeth, the switch button is pressed, the button sleeve is moved inward along button shell, and the interior sliding tooth is in the guiding It is slided in slot, until the outer sliding tooth and the Self locking gears contradict, and the Self locking gears is pushed, because of the outer sliding tooth It is equipped with corresponding inclined-plane and end face, the Self locking gears rotation with the lock tooth, the lock tooth slides into the guide groove, unclamps institute It states switch button, the switch button and button sleeve and replys original state under the elastic force effect of push-button reset spring, at this time The Self locking gears are displaced outwardly, and the push rod is displaced outwardly under the elastic force effect of push rod reset spring, and passes through contact bullet Spring pulls the movable contact spring until movable contact spring is contacted with normally opened static contact, so that button switch goes to normally opened shape from normally off State；The switch button is pressed again, and the button sleeve is moved inward along button shell, and the interior sliding tooth is in the guiding It is slided in slot, until the interior sliding tooth and the lock tooth are inconsistent, and release the guide groove for the lock tooth, in described Sliding tooth and the lock tooth are equipped with corresponding inclined-plane and end face, the Self locking gears rotation, and the lock tooth leaves the guide groove, And it is caught in the sliding pawl, at the same time, the Self locking gears move inward, and push the push rod, so that button switch is from normal Open state goes to normally off, unclamps the switch button, the switch button and button sleeve in the bullet of push-button reset spring Power effect is lower to reply original state.

The press-button structure of the utility model is different from common press-button structure, and when not pressing, the switch button is always In identical original state, avoid push-button reset spring from being in compressive state for a long time, prolong the service life, guarantee using and Reset effect.

Preferably, offering the self-locking transmission circle positioned at button interior of shell, institute between the Self locking gears and push rod It states and is additionally provided with drive lugs on self-locking transmission circle, Self locking gears are convenient for conflict in the end of the drive lugs and the push rod The push rod is pushed, transmission effect is good.

Preferably, the button shell or the button sleeve ends are equipped with groove, the self-locking transmission circle is equipped with The guide block of the corresponding groove, avoids the self-locking transmission circle from rotating, guarantee self-locking transmission circle to the transmission effect of the push rod, The drive lugs can be used as the guide block.

Preferably, being additionally provided with indicator light, the indicator light includes the lamp holder being located between two contact bases, is mounted on The resistance of pin in lamp holder, the lamp bead in button sleeve and the connection lamp bead and pin, the indicator light can be shown Show whether be powered, is easy to use, and improve safety.

Preferably, lock is additionally provided in the switch case, the circular retainer of lock and the connection retainer Spanner, the spanner is pierced by from the switch case, and the retainer is socketed in the button shell exterior, outside the button Shell outer end is equipped with L-shaped guide groove, including mounting groove and locked groove, and the closing piece of corresponding guide groove is equipped with inside the retainer, described Closing piece can slide in the guide groove, and can skid off from the mounting groove.

The application method of the lock are as follows: the retainer is placed in the switch case first, is directed at closing piece and installation The button shell is inserted into the switch case and retainer by slot, and the closing piece is slided along mounting groove, rotates institute by spanner Retainer is stated, closing piece is made to slide into locked groove, the locking of completing button shell from mounting groove.

Preferably, the button shell exterior is equipped with screw thread, and it is socketed with corresponding tight loop, it is practical for installing Novel button switch.

The installation method of the button switch are as follows: switch case and button shell are placed in circuit board or other installation plate bodys Two sides, button shell is mounted in switch case by latching, the tight loop is rotated, passes through tight loop and switch case It clamps, completes installation.

Preferably, the lock is additionally provided with locking structure, including being located at the clamping block of the spanner and being located at switch Lock slots on shell are equipped with the locking projections of the corresponding clamping block, when in use, the locking projections in the lock slots It is mobile that the clamping block can be limited, to play the role of the locking lock；Firmly move the spanner, the clamping block The locking projections are crossed, unlock is completed.

Preferably, being additionally provided with blowout magnet on the contact base, the blowout magnet is located at the normally closed stationary contact Near normally opened stationary contact, can dissolve switch when arcing contact be attracted due to generate be unable to disjunction situation.

Preferably, the contact base two sides are equipped with the blowout magnet, arc quenching effect is improved.

The beneficial effects of the utility model have:

1. structure is simple, button switch uses lug plate plug mode, convenient for installation and maintenance；

2. stable structure uses smoothness；

3. better reduction, spring is not easy to fatigue, long service life；

4. being provided with contact spring and push rod reset spring, contact contact is stablized, and is not easy to loosen, highly-safe；

5. being equipped with two groups of static contacts, and every group of static contact is equipped with a pair of normally closed static contact and normally opened static contact, monolithic touching To have 1NC(normally opened for point) and 1NO(it is normally closed) function, use scope is wide.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment 1；

Fig. 2 is the structural schematic diagram of the utility model embodiment 1 movable contact spring and static contact；

Fig. 3 is the structural schematic diagram of 1 contact base of the utility model embodiment；

Fig. 4 is the installation diagram location drawing of 1 indicator light of the utility model embodiment；

Fig. 5 is the structure chart of 1 indicator light of the utility model embodiment；

Fig. 6 is the structural schematic diagram of the utility model embodiment 2；

Fig. 7 is the structural schematic diagram of 2 button shell of the utility model embodiment；

Fig. 8 is the structural schematic diagram of 2 button sleeve of the utility model embodiment；

Fig. 9 is the structural schematic diagram of the utility model embodiment 3；

Figure 10 is the structural schematic diagram that the utility model embodiment 4 latches；

Figure 11 is the structural schematic diagram of 4 guide groove of the utility model embodiment；

Figure 12 is the structural schematic diagram of 4 retainer of the utility model embodiment；

Figure 13 is the structural schematic diagram of 4 locking structure of the utility model embodiment；

Items are respectively as follows: 1 switch case in figure, 2 switch buttons, 3 press-button structures, 4 movable contact springs, 5 static contacts, 6 push rods, and 7 Normally closed static contact, 8 normally opened static contacts, 9 normally closed stationary contacts, 10 normally opened stationary contacts, 11 two-way contacts, 12 contact springs, 13 push rods Reset spring, 14 contact bases, 15 buckles, 16 push rod sliding slots, 17 movable contact spring mounting grooves, 18 lamp holders, 19 pins, 20 lamp beads, 21 electricity Resistance, 22 blowout magnets, 23 button sleeves, 24 Self locking gears, 25 button shells, 26 sliding pawls, 27 slip teeth, 28 guide grooves, 29 lock teeth, 30 inclined-planes, 31 self-locking sliding tooths, 32 outer sliding tooths, sliding tooth in 33,34 push-button reset springs, 35 self-locking transmission circles, 36 transmissions Convex block, 37 grooves, 38 guide blocks, 39 locks, 40 retainers, 41 spanners, 42 guide grooves, 43 mounting grooves, 44 locked grooves, 45 closing pieces, 46 screw threads, 47 tight loops, 48 clamping blocks, 49 lock slots, 50 lock tabs.

Specific embodiment

Illustrate below in conjunction with embodiment and attached drawing, the technical solution of the utility model is described in detail.

As shown in Figure 1 and 2, a kind of button switch, including switch case 1, the switch button being mounted in switch case 12, The press-button structure 3 being connected with switch button 2, the movable contact spring 4 in switch case 1 and static contact 5, the movable contact spring 4 pass through Push rod 6 is connected with the press-button structure 3, can move in the switch case 1 with the pressing of switch button 2, described quiet Contact 5 is fixed in the switch case 1, and the static contact 5 is equipped with two groups, and every group of static contact 5 includes a pair of normally closed static contact 7 With a pair of normally opened static contact 8, the normally closed static contact 7 is between normally opened static contact 8, and the normally closed static contact 7 is close to described 2 one end outward bending of switch button forms bending one, and the bending one is equipped with normally closed stationary contact 9, and the normally opened static contact 8 is inwardly It is bent to form bending two, bending two is equipped with normally opened stationary contact 10, and the movable contact spring 4 is located between bending one and bending two, described The both ends of movable contact spring 4 are two-way contact 11, and the two-way contact 11, normally opened stationary contact 10 and normally closed stationary contact 9 are located at always On line, be additionally provided with contact spring 12 between the movable contact spring 4 and push rod 6,12 both ends of contact spring respectively with movable contact spring 4 and Push rod 6 is fixedly connected, and the push rod 6 is additionally provided with push rod reset spring 13, the principle and push type ball pen of the press-button structure 3 Pressing structure it is similar.

The principle of the present embodiment are as follows: when movable contact spring 4 is connected to normally closed static contact 7, i.e., the described two-way contact 11 with it is normally closed quiet When contact 9 contacts, the button switch is in normally off, at this point, the push rod reset spring 13 and contact spring 12 are in Compressive state；Switch button 2 is pressed, the button switch still keeps normally off at this time, unclamps the switch button 2, described Push rod reset spring 13 keeps the push rod 6 protruding with switch button 2, and the contact spring 12 switchs to tension by compressive state State pulls the movable contact spring 4, the two-way contact 11 of the movable contact spring 4 separated with normally closed stationary contact 9 and with normally opened stationary contact 10 contacts, at this point, the normally closed static contact 7 and movable contact spring 4 disconnect, the normally opened static contact 8 is connected to movable contact spring 4, described to press Button switch is in normally open.

Wherein, normally closed static contact 7 and normally opened static contact 8 described in every group are mounted in same contact base 14, the contact base 14 installations connect the switch case 1, are easily installed use.

As shown in figure 3, the contact base 14 connects the switch case 1 by buckle structure installation, including it is located at contact Card base on seat 14 and the buckle 15 in switch case 1, it is easy for installation.

Wherein, push rod sliding slot 16 is equipped in the contact base 14, the push rod 6 can slide in the push rod sliding slot 16, Described 13 one end of push rod reset spring is fixedly connected with the contact base 14, and one end is fixedly connected with 6 top of push rod.

The push rod 6 is equipped with movable contact spring mounting groove 17, and the movable contact spring 4 is arranged through the movable contact spring mounting groove 17, often A movable contact spring 4 is all connected with there are two the symmetrical contact spring 12, and described 12 one end of contact spring is fixed in the movable contact spring 4 At end position, the other end is fixed in the movable contact spring mounting groove 17 of the push rod 6, and the contact spring 12 is located at described Between movable contact spring 4 and switch button 2, such structure enables to the movable contact spring 4 smooth with the mobile stabilization of the push rod 6, And stabilized structure.

As shown in Fig. 4 ~ 5, it is additionally provided with indicator light, the indicator light includes the lamp holder between two contact bases 14 18, it is mounted on the electricity of the pin 19 in lamp holder 18, the lamp bead 20 in press-button structure 3 and the connection lamp bead 20 and pin 19 Resistance 21, the indicator light can show whether be powered, and be easy to use, and improve safety.

In the present embodiment, blowout magnet 22 is additionally provided on the contact base 14, the blowout magnet 22 is located at described 10 side of normally closed stationary contact 9 and normally opened stationary contact, can dissolve switch when arcing contact be attracted due to generate be unable to disjunction situation.

The contact base two sides are equipped with the blowout magnet, and are symmetrical with normally closed stationary contact 9 and normally opened stationary contact 10 is set It sets, improves arc quenching effect.

Embodiment 2

The present embodiment is to go technical solution substantially the same manner as Example 1, difference is based on embodiment 1:

As shown in Fig. 6 ~ 8, the press-button structure 3 includes button sleeve 23, Self locking gears 24 and button shell 25, described to press Button sleeve 23, Self locking gears 24 and the switch button 2 are slidably mounted on inside the button shell 25, the button sleeve 23 For cylindrical shape, end is fixedly connected with the switch button 2, several are equipped with inside the button shell 25 along the button The circumferential equally distributed sliding pawl 26 of shell 25, the sliding pawl 26 is equipped with stair-stepping slip teeth 27 far from 2 one end of switch button, described It is equipped with guide groove 28 between sliding pawl 26, lock tooth 29 corresponding with the guide groove 28 is equipped with outside the Self locking gears 24, it is described It locks 29 end of tooth and is equipped with inclined-plane 30 corresponding with slip teeth 27, be equipped with the self-locking sliding tooth 31 of several groups outside the button sleeve 23, The end of the self-locking sliding tooth 31 is equipped with end face corresponding with the lock inclined-plane 30 of tooth 29, self-locking sliding tooth 31 described in every group There are three being all provided with, including two outer sliding tooths 32 and it is located in the middle interior sliding tooth 33, two outer sliding tooths 32 and two Adjacent lock tooth 29 is corresponding, in interior 33 outwardly convex of sliding tooth to the guide groove 28, can slide in guide groove 28, Also, when the button sleeve 23 is pressed inward against with the switch button 2, the self-locking sliding tooth 31 always can with it is described It is inconsistent to lock tooth 29, push-button reset spring 34, described 34 one end of push-button reset spring are also arranged with outside the button sleeve 23 The button sleeve 23 is connected, one end connects the button shell 25.

The use principle of the press-button structure of the present embodiment are as follows: the button switch is in normally off, described at this time self-locking The lock tooth 29 on gear 24 and the cunning pawl 26 on the button shell 25 are inconsistent, and the lock tooth 29 is located at the sliding pawl 26 In upper stair-stepping slip teeth 27, the switch button 2 is pressed, the button sleeve 23 is moved inward along button shell 25, described Interior sliding tooth 33 is slided in the guide groove 28, until the outer sliding tooth 32 is contradicted with the Self locking gears 24, and is pushed The Self locking gears 24, because the outer sliding tooth 32 and the lock tooth 29 are equipped with corresponding inclined-plane 30 and end face, the self-locking tooth 24 rotation of wheel, the lock tooth 29 slide into the guide groove 28, unclamp the switch button 2, the switch button 2 and button sleeve 23 reply original state under the elastic force effect of push-button reset spring 34, and the Self locking gears 24 are displaced outwardly at this time, described to push away Bar 6 is displaced outwardly under the elastic force effect of push rod reset spring 13, and pulls the movable contact spring 4 until dynamic by contact spring 12 Contact 4 is contacted with normally opened static contact 8, so that button switch goes to normally open from normally off；Press again it is described switch by Button 2, the button sleeve 23 are moved inward along button shell 25, and the interior sliding tooth 33 is slided in the guide groove 28, directly It is inconsistent to the interior sliding tooth 33 and the lock tooth 29, and the lock tooth 29 is released into the guide groove 28, because of the interior drive Movable tooth 33 and the lock tooth 29 are equipped with corresponding inclined-plane 30 and end face, and the Self locking gears 24 rotate, and the lock tooth 29 leaves institute Guide groove 28 is stated, and is caught in the sliding pawl 26, at the same time, the Self locking gears 24 move inward, and push the push rod 6, So that button switch goes to normally off from normally open, the switch button 2, the switch button 2 and button sleeve are unclamped 23 reply original state under the elastic force effect of push-button reset spring 34.

The press-button structure of the present embodiment is different from common press-button structure, and when not pressing, the switch button 2 is located always In identical original state, avoid 34 long-time of push-button reset spring from being in compressive state, prolong the service life, guarantee using and Reset effect.

Embodiment 3

The present embodiment is to go technical solution substantially the same manner as Example 1, difference is based on embodiment 2:

As shown in figure 9, offering the self-locking transmission inside button shell 25 between the Self locking gears 24 and push rod 6 35 are enclosed, is additionally provided with drive lugs 36 on the self-locking transmission circle 35, the end of the drive lugs 36 and the push rod 6 offsets Touching pushes the push rod 6 convenient for Self locking gears 24, and transmission effect is good.

Wherein, the button shell 25 and 23 end of button sleeve are equipped with groove 37, on the self-locking transmission circle 35 Guide block 38 equipped with the correspondence groove 37 avoids the self-locking transmission circle 35 from rotating, and guarantees that self-locking transmission circle 35 is pushed away to described The transmission effect of bar 6, wherein the guide block 37 of the corresponding button shell is the drive lugs 38.

Embodiment 4

The present embodiment is to go technical solution substantially the same manner as Example 1, difference is based on embodiment 2:

As shown in Figure 10 ~ 12, lock 39, the circular retainer 40 and connection institute are additionally provided in the switch case 1 The spanner 41 of retainer 40 is stated, the spanner 41 is pierced by from the switch case 1, and the retainer 40 is socketed in the button shell Outside 25,25 outside of button shell is equipped with L-shaped guide groove 42, including orthogonal mounting groove 43 at end position With locked groove 44, the closing piece 45 of corresponding guide groove 42 is equipped with inside the retainer 40, the closing piece 45 can be slided in the guide groove 42 It is dynamic, and can be skidded off from the mounting groove 43.

The application method of the lock 39 are as follows: the retainer 40 is placed in the switch case 1 first, is directed at closing piece 45 With mounting groove 43, the button shell 25 is inserted into the switch case 1 and retainer 40, the closing piece 45 is sliding along mounting groove 43 It is dynamic, the retainer 40 is rotated by spanner 41, closing piece 45 is made to slide into locked groove 44, the lock of completing button shell 25 from mounting groove 43 It is fixed.

In the present embodiment, it is equipped with screw thread 46 outside the button shell 25, and is socketed with corresponding tight loop 47, is used for The button switch of the utility model is installed.

The installation method of the button switch are as follows: switch case 1 and button shell 25 are placed in circuit board or other installations Button shell 25 is mounted in switch case 1 by lock 39, rotates the tight loop 47, pass through fastening by the two sides of plate body Circle 47 and switch case 1 clamp, and complete installation.

As shown in figure 13, the lock 39 is additionally provided with locking structure, including the clamping block 48 being located on the spanner 41 With the lock slots 49 being located in switch case 1, the locking projections 50 of the corresponding clamping block 48 are equipped in the lock slots 49, In use, the locking projections 50 can limit the movement of clamping block 48, to play the role of the locking lock 39；With Power moves the spanner 41, and the clamping block 48 crosses the locking projections 50, completes unlock.

Claims (10)

1. a kind of button switch is pressed including switch case (1), the switch button (2) being mounted on switch case (1), with switch The connected press-button structure (3) of button (2), movable contact spring (4) and static contact (5) in switch case (1), it is characterised in that: institute It states movable contact spring (4) to be connected by push rod (6) with the press-button structure (3), the static contact (5) is equipped with two groups, every group of static contact (5) the normally closed static contact (7) of a pair including a pair of normally opened static contact (8) and between normally opened static contact (8) is described normally closed Static contact (7) forms bending one close to the switch button (2) one end outward bending, and the bending one is equipped with normally closed stationary contact (9), the normally opened static contact (8) bends inwards to form bending two, and bending two is equipped with normally opened stationary contact (10), the movable contact spring (4) it is located between bending one and bending two, the both ends of the movable contact spring (4) are two-way contact (11), the two-way contact (11), Normally opened stationary contact (10) and normally closed stationary contact (9) are located along the same line, and are additionally provided between the movable contact spring (4) and push rod (6) Contact spring (12), contact spring (12) both ends are fixedly connected with movable contact spring (4) and push rod (6) respectively, the push rod (6) It is additionally provided with push rod reset spring (13).

2. a kind of button switch according to claim 1, it is characterised in that: the push rod (6) is equipped with movable contact spring mounting groove (17), the movable contact spring (4) is arranged through the movable contact spring mounting groove (17), and each movable contact spring (4) is all connected with that there are two symmetrical The contact spring (12), described contact spring (12) one end is fixed in the movable contact spring (4) at end position, another End is fixed in the push rod (6), and the contact spring (12) is between the movable contact spring (4) and switch button (2).

3. a kind of button switch according to claim 1 or 2, it is characterised in that: the press-button structure (3) includes button set Cylinder (23), Self locking gears (24) and button shell (25), the button sleeve (23), Self locking gears (24) and the switch button (2) it is internal to be slidably mounted on the button shell (25), the button sleeve (23) is cylindrical shape, and end is pressed with the switch Button (2) is fixedly connected, several are equipped with inside the button shell (25) along the equally distributed sliding pawl of button shell (25) (26), the sliding pawl (26) is equipped with stair-stepping slip teeth (27) far from switch button (2) one end, is equipped between the sliding pawl (26) Guide groove (28), the Self locking gears (24) are external to be equipped with lock tooth (29) corresponding with the guide groove (28), the lock tooth (29) end is equipped with inclined-plane (30) corresponding with slip teeth (27), is equipped with the self-locking sliding tooth of several groups outside the button sleeve (23) (31), the end of the self-locking sliding tooth (31) is equipped with end face corresponding with lock inclined-plane (30) of tooth (29), described in every group There are three self-locking sliding tooth (31) is all provided with, including two outer sliding tooths (32) and it is located in the middle interior sliding tooth (33), two institutes It is corresponding with two adjacent locks tooth (29) to state outer sliding tooth (32), the interior sliding tooth (33) is corresponding with the guide groove (28), And it extends out in the guide groove (28), also, when the button sleeve (23) presses inward against with the switch button (2) When, the self-locking sliding tooth (31) always can be inconsistent with the lock tooth (29), is also arranged outside the button sleeve (23) Have push-button reset spring (34), push-button reset spring (34) one end connection button sleeve (23), described in the connection of one end Button shell (25).

4. a kind of button switch according to claim 3, it is characterised in that: the Self locking gears (24) and push rod (6) it Between offer the self-locking transmission circle (35) internal positioned at button shell (25), it is convex to be additionally provided with transmission on the self-locking transmission circle (35) Block (36), the ends of the drive lugs (36) and the push rod (6) is to conflict.

5. a kind of button switch according to claim 4, it is characterised in that: the button shell (25) or the button set Cylinder (23) end is equipped with groove (37), and the self-locking transmission circle (35) is equipped with the guide block (38) of the corresponding groove (37).

6. a kind of button switch according to claim 1, it is characterised in that: be additionally provided with indicator light, the indicator light packet Include lamp holder (18), the pin (19) that is mounted in lamp holder (18), the lamp bead (20) being located in button sleeve (23) and described in connecting The resistance (21) of lamp bead (20) and pin (19).

7. a kind of button switch according to claim 3, it is characterised in that: be additionally provided with lock in the switch case (1) Detain (39), the lock (39) circular retainer (40) and the spanner (41) for connecting the retainer (40), the spanner (41) from It is pierced by the switch case (1), the retainer (40) is socketed in button shell (25) outside, the button shell (25) Outer end is equipped with L-shaped guide groove (42), including mounting groove (43) and locked groove (44), and correspondence is equipped with inside the retainer (40) and is led The closing piece (45) of slot (42).

8. a kind of button switch according to claim 7, it is characterised in that: be equipped with screw thread outside the button shell (25) (46), and it is socketed with corresponding tight loop (47).

9. a kind of button switch according to claim 7 or 8, it is characterised in that: the lock (39) is additionally provided with locking Structure, including the lock slots (49) for being located at the clamping block (48) of the spanner (41) and being located on switch case (1), the locking The locking projections of the corresponding clamping block (48) are equipped in slot (49).

10. a kind of button switch according to claim 1, it is characterised in that: it is additionally provided with blowout magnet (22), it is described to go out Arc magnet (22) is located at the side of the normally closed stationary contact (9) and normally opened stationary contact (10).