CN209232603U

CN209232603U - Trigger device and trigger switch

Info

Publication number: CN209232603U
Application number: CN201822274672.8U
Authority: CN
Inventors: 钱馨怡; 梁杰; 王成宇
Original assignee: Schmeisser Industrial Switch Manufacturing (shanghai) Co Ltd
Current assignee: Schmeisser Industrial Switch Manufacturing (shanghai) Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-08-09
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses a kind of trigger device and trigger switch.This kind of trigger device includes: shaft, cam, adjusting gasket and bolt, shaft includes: interconnecting piece and linkage portion, interconnecting piece is connected with linkage portion, interconnecting piece is used to drive linkage portion rotation in rotation, linkage portion, which is equipped with, adjusts screw hole, cam is equipped with linkage through-hole and first through hole, linkage portion is threaded through in linkage through-hole, and linkage portion can be slided in linkage through-hole, adjusting gasket is arc elastic piece, adjusting gasket is equipped with the second through-hole, bolt is successively worn to be adjusted in screw hole by first through hole and the second through-hole and screw thread rotation, cam is equipped with and supports groove, support the actuating bar for driving trigger switch, when for cam rotation, drive the actuating bar of trigger switch mobile.The trigger device of the utility model, when interconnecting piece being made to rotate a certain angle, the distance that actuating bar moves along its axis is more accurate, so that eliminating influences brought by the tolerance of shaft, cam, adjusting gasket and bolt.

Description

Trigger device and trigger switch

Technical field

The utility model relates to trigger switch field more particularly to a kind of trigger device and trigger switch.

Background technique

Ticket checking use is done as the progress safety door system in epoch is no longer confined to the places such as airport, subway, but it is more Ground is operated in high-grade office building, library, cinema, factory and enterprise, conference and exhibition center, stadiums, tourist attractions etc., is provided One quick, smooth, efficient twocouese controlled path cooperates competitive, high-quality safe passing control system.In industry In production, need to protect the equipment in some containers, also can apply many types safety door system, when safety door without It is opened in meaning or in the case that operator forgets closing, safety door system can prompt operator, anti-major structure At injury to personnel or equipment damage.

The trigger device of the prior art includes cam, shaft and bolt, and cam is connected with shaft close-fitting, and actuating bar top is supported The groove of cam is handled, when shaft rotates, band moving cam rotates, and the contact point of the groove and actuating bar that make cam changes, from And moving up and down for actuating bar is driven, but due to the parts itself such as the installation and cam of trigger device, shaft and bolt Influence brought by tolerance, the stroke conversion that will lead between cam and shaft has error, lead to that actuating bar moves up and down away from From precisely, the mobile amount of actuating bar may be not insufficient when safety door is opened, lead to that alarm set cannot be triggered, cannot reach and mention The purpose of awake operator.Tolerance refers to that part maximum limit of size subtracts the size of the absolute value of the difference of the minimum limit of size, or The upper deviation subtracts the size of the difference of lower deviation.

Utility model content

The purpose of this utility model is to provide a kind of trigger device and trigger switch, and interconnecting piece is made to rotate a certain angle When, the distance that actuating bar moves along its axis is more accurate, to eliminate the tolerance institute band of shaft, cam, adjusting gasket and bolt The influence come.

The utility model embodiment provides a kind of trigger device, is applied to trigger switch, comprising: shaft, cam, adjusting Gasket and bolt；

The shaft includes: interconnecting piece and linkage portion, and the interconnecting piece is connected with the linkage portion, and the interconnecting piece is used for The linkage portion is driven to rotate in rotation, the linkage portion, which is equipped with, adjusts screw hole；

The cam is equipped with linkage through-hole and first through hole, the linkage portion are threaded through in the linkage through-hole, and described Linkage portion can be slided in the linkage through-hole；

The adjusting gasket is arc elastic piece, and the arc end of the adjusting gasket supports residence and states linkage portion, the adjusting Gasket is equipped with the second through-hole, and the adjusting gasket is arranged between the first through hole and the adjusting screw hole；

The bolt is successively worn through the first through hole and second through-hole and screw thread rotation is in the adjusting spiral shell In hole；

The cam, which is equipped with, supports groove, the top for supporting groove and being used to accommodate the actuating bar of trigger switch, and institute It states and supports groove for driving the actuating bar of trigger switch mobile in cam rotation.

In a kind of feasible scheme, the opening for adjusting screw hole is set as plane, and the adjusting gasket supports residence The plane for adjusting the opening of screw hole is stated, the stability of adjusting gasket is higher.

In a kind of feasible scheme, the both ends of the adjusting gasket are equipped with a pitching pile head, the linkage through-hole Inside is set there are two pitching pile hole, and each pitching pile head is inserted into the pitching pile hole respectively.The mutual cooperation of pitching pile head and pitching pile hole makes The stability of adjusting gasket is higher.

In a kind of feasible scheme, the pitching pile head is at being in tip-angled shape, when each pitching pile head is inserted into pitching pile Kong Shigeng respectively Add conveniently.

In a kind of feasible scheme, the cam, which is equipped with, hides groove, and the first through hole is located at the hiding groove Bottom, and the bottom of the hiding groove is plane, and the nut of the bolt is held in the bottom of the hiding groove, makes this The stability of trigger device is higher.

In a kind of feasible scheme, the trigger device further include: shell, cap and limit film；

The top surface of the shell is open, and the shell includes: shell, first partition and second partition；

The linkage portion sequentially passes through the shell, the first partition and the second partition；

The linkage portion is equipped with limiting slot, and the limit film is arranged between the shell and the first partition, and institute It states limit film to be fastened in the limiting slot, for limiting the axial movement of the linkage portion；

The cam is arranged between the first partition and the second partition；

The cap lid is located at the top surface opening of the shell, and the cap is detachably connected with the shell；

Shell shell bottom end is equipped with through-hole, passes through for the actuating bar for trigger switch.Shell, cap and limit film Keep shaft and cam close-fitting degree higher, to keep the stability of the trigger device higher.

In a kind of feasible scheme, open tubular column is equipped with around the through-hole of the shell bottom end, for for outside the shell Connect the switch main body of trigger switch.Open tubular column keeps the connection of the trigger device and switch main body more stable.

It is equipped with engaging groove in a kind of feasible scheme, around the through-hole of the shell bottom end, is used for and switch main body Boss be adapted to engaging, can be to avoid the trigger device around the axis rotation of actuating bar.

The utility model embodiment additionally provides a kind of trigger switch, comprising: switch main body and any one of the above can Trigger device described in capable scheme；

The switch main body includes: main body cover, switching circuit assemblies and actuating bar；

The switching circuit assemblies are located in the main body cover；

The actuating bar protrudes the main body cover, and the actuating bar is for triggering the switching circuit when being pressed down Component.

In a kind of feasible scheme, the trigger switch further include: buzzer；

The buzzer and the switching circuit assemblies are electrically connected, and the buzzer is used in the switching circuit assemblies Ring is issued when being triggered.The prompting function of buzzer is more obvious.

Based on above scheme it is found that the trigger device that the utility model provides in fact, using shaft, cam, adjusting gasket and Bolt realizes that cam accurately drives actuating bar mobile, eliminates shadow brought by the tolerance of installation and the tolerance of cam itself It rings.Specifically, linkage portion rotation is driven when interconnecting piece is in rotation, due to linkage portion, cam, adjusting gasket and bolt close-fitting Connection, then cam is rotated with linkage portion, since actuating bar can only turn along its axial movement, the contact of cam and actuating bar with cam Dynamic and change, actuating bar moves along its axis, due to shaft, cam, adjusting gasket and the bolt produced all have it is certain Tolerance, therefore shaft rotates driven actuating bar and moves along its axis distance inaccurately, causes trigger device that cannot reach pre- Fixed triggering effect.Therefore, it after trigger device combination installs, is put into trigger switch, turns bolt, make universal driving shaft It is slided in linkage through-hole, to make universal driving shaft and support change at a distance from groove.When universal driving shaft with support quilt at a distance from groove After adjustment is good, when interconnecting piece rotates a certain angle, the distance that actuating bar moves along its axis is more accurate, thus eliminate shaft, It is influenced brought by the tolerance of cam, adjusting gasket and bolt, trigger device is made to can achieve scheduled triggering effect.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the trigger device and actuating bar in the utility model embodiment one；

Fig. 2 is the structural schematic diagram of the cam of the trigger device in the utility model embodiment one；

Fig. 3 is the schematic view of the front view of the adjusting gasket of the trigger device in the utility model embodiment one；

Fig. 4 is the overlooking structure diagram of the adjusting gasket of the trigger device in the utility model embodiment one；

Fig. 5 is structural schematic diagram of the shaft of the trigger device in the utility model embodiment one under overlooking state；

Fig. 6 is internal structure signal of the shell of the trigger device in the utility model embodiment one under overlooking state Figure；

Fig. 7 is the structural schematic diagram of the limit film of the trigger device in the utility model embodiment one；

Fig. 8 is the schematic perspective view of the trigger device and actuating bar in the utility model embodiment one；

Fig. 9 is the schematic perspective view of the switch main body of the trigger switch in the utility model embodiment two；

Figure 10 is the schematic perspective view of the trigger switch in the utility model embodiment two.

Figure label:

Trigger device 1；

Shaft 11；

Interconnecting piece 111；

Linkage portion 112；

Adjust screw hole 1121；

Limiting slot 1122；

Cam 12；

Link through-hole 121；

Pitching pile hole 1211；

First through hole 122；

Support groove 123；

Hide groove 124；

Slot cover 125；

Adjusting gasket 13；

Second through-hole 131；

Pitching pile head 132；

Bolt 14；

Shell 15；

Shell 151；

First partition 152；

Second partition 153；

Open tubular column 154；

Engage groove 155；

Cap 16；

Limit film 17；

Switch main body 2；

Main body cover 21；

Boss 211；

Switching circuit assemblies 22；

Actuating bar 23.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " etc. The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure It makes and operates, therefore should not be understood as limiting the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, be also possible to integral； It can be mechanical connection, be also possible to be electrically connected, be also possible to communication connection；It can be and be directly connected to, centre can also be passed through Medium is indirectly connected with, and can be the connection inside two elements or the interaction relationship of two elements, unless otherwise clear Restriction.For the ordinary skill in the art, above-mentioned term can be understood in the utility model as the case may be In concrete meaning.

The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below Embodiment can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.

Fig. 1 is the structural schematic diagram of the trigger device and actuating bar in the utility model embodiment one, and Fig. 2 is that this is practical new The structural schematic diagram of the cam of trigger device in type embodiment one, Fig. 3 are the trigger device in the utility model embodiment one Adjusting gasket schematic view of the front view, Fig. 4 is that the adjusting gasket of the trigger device in the utility model embodiment one is bowed Depending on structural schematic diagram, Fig. 5 is structural representation of the shaft of the trigger device in the utility model embodiment one under overlooking state Figure, Fig. 6 are schematic diagram of internal structure of the shell of the trigger device in the utility model embodiment one under overlooking state, Fig. 7 For the structural schematic diagram of the limit film of the trigger device in the utility model embodiment one, Fig. 8 is the utility model embodiment one In trigger device and actuating bar schematic perspective view.

Trigger device 1 provided by the embodiment of the utility model is applied to trigger switch, comprising: shaft 11, is adjusted cam 12 Gasket 13 and bolt 14 are saved, shaft 11 includes: interconnecting piece 111 and linkage portion 112, and interconnecting piece 111 and linkage portion 112 connect, even Socket part 111 is used to drive linkage portion 112 to rotate in rotation, and linkage portion 112, which is equipped with, adjusts screw hole 1121, and cam 12 is equipped with connection Dynamic through-hole 121 and first through hole 122, linkage portion 112 are threaded through in linkage through-hole 121, and linkage portion 112 can be in linkage through-hole Sliding in 121, adjusting gasket 13 are arc elastic piece, and the arc end of adjusting gasket 13 supports linkage portion 112, and adjusting gasket 13 is set There is the second through-hole 131, and the setting of adjusting gasket 13 in first through hole 122 and is adjusted between screw hole 1121, bolt 14 is successively worn By first through hole 122 and the second through-hole 131 and screw thread rotation is being adjusted in screw hole 1121, and cam 12 is equipped with and supports groove 123, The top of actuating bar of the groove 123 for accommodating trigger switch is supported, and supports groove 123 and is used for when cam 12 rotates, band The actuating bar of dynamic trigger switch is mobile.

Wherein, shaft 11, cam 12, adjusting gasket 13 and bolt 14 are the part with certain tolerance, and tolerance refers to Part maximum limit of size subtract the absolute value of the difference of the minimum limit of size size or the upper deviation subtract lower deviation difference size. In practical applications, the angle that shaft 11 rotates is generally between 3 °~10 °, and rotational angle is smaller, even if the size of part exists Within tolerance permitted range, it will also result in the distance that actuating bar moves up and down and generate error.

Through the above it is not difficult to find that trigger device provided in this embodiment 1, utilizes shaft 11, cam 12, spacer Accurately drive actuating bar is mobile to realize cam 12 for piece 13 and bolt 14, eliminates the tolerance of installation and the tolerance of cam 12 itself Brought influence.Specifically, linkage portion 112 is driven to rotate when interconnecting piece 111 is in rotation, due to linkage portion 112, cam 12, adjusting gasket 13 is connected with 14 close-fitting of bolt, then cam 12 is rotated with linkage portion 112, since actuating bar can only be along its axial direction The contact of movement, cam 12 and actuating bar rotates with cam 12 and is changed, and actuating bar moves along its axis, since that produces turns Axis 11, cam 12, adjusting gasket 13 and bolt 14 all have certain tolerance, therefore shaft 11 rotates driven actuating bar edge It moves axially distance inaccurately, causes trigger device 1 that cannot reach scheduled triggering effect.Therefore, when 1 group of the trigger device It after conjunction installs, is put into trigger switch, turns bolt 14, slide universal driving shaft in linkage through-hole 121, to make to link Axis with support at a distance from groove 123 change.When universal driving shaft with support good by adjustment at a distance from groove 123 after, interconnecting piece 111 rotate When certain angle, the distance that actuating bar moves along its axis is more accurate, to eliminate shaft 11, cam 12, adjusting gasket 13 It is influenced brought by tolerance with bolt 14, trigger device 1 is made to can achieve scheduled triggering effect.It should be understood that behaviour Lever and to support the initial contact of groove 123 be the lowest part for supporting groove 123 and being recessed inwardly.In addition, supporting for cam 12 is recessed Slot 123, which may be set to be, supports protrusion, this supports the protrusion contact initial with actuating bar and is arranged according to the actual situation, when When connecting shaft rotates, actuating bar can also be driven to move along its axis, by adjustment, equally can achieve scheduled triggering effect Fruit.

Optionally, in the present embodiment, the opening for adjusting screw hole 1121 is set as plane, and adjusting gasket 13, which supports, to be adjusted The plane of the opening of screw hole 1121.When the opening for adjusting screw hole 1121 is set as plane, the arc end of adjusting gasket 13 is supported The plane makes the arc end uniform force of adjusting gasket 13, prevents the arc end of adjusting gasket 13 and the plane from being formed and slides.Therefore, The opening for adjusting screw hole 1121, which is set as plane, keeps the stability of adjusting gasket 13 higher.

Optionally, in the present embodiment, the both ends of adjusting gasket 13 are equipped with a pitching pile head 132, linkage through-hole 121 Inside is set there are two pitching pile hole 1211, and each pitching pile head 132 is inserted into pitching pile hole 1211 respectively, and each pitching pile head 132 is fixed on linkage complete In each pitching pile hole 1211 of 121 inside of hole, sliding will not be generated on the inside of each pitching pile head 132 and linkage through-hole 121.Therefore, pitching pile First 132 and the mutual cooperation in pitching pile hole 1211 keep the stability of adjusting gasket 13 higher.

Optionally, in the present embodiment, pitching pile head 132 is in tip-angled shape, and each pitching pile head 132 is being inserted into pitching pile hole respectively It is more convenient when 1211, therefore, be conducive to the combination assembly of the trigger device 1.

Optionally, in the present embodiment, cam 12, which is equipped with, hides groove 124, and first through hole 122, which is located at, hides groove 124 Bottom, and the bottom for hiding groove 124 is plane, and the nut of bolt 14 is held in the bottom of hiding groove 124, commonly uses bolt It is plane on the inside of 14 nut, after bolt 14 is tightened, the bottom of hiding groove 124 is held on the inside of the nut of bolt 14, When the bottom for hiding groove 124 is plane, it is close on the inside of the nut of bolt 14 with the bottom plane of hiding groove 124, two flat Face offset it is more stable, to keep the stability of the trigger device 1 higher.One is also set up at the hiding groove 124 of the present embodiment The slot cover 125 of a adaptation, to protect the bolt 14 hidden in groove 124.

Optionally, in the present embodiment, trigger device 1 further include: shell 15, cap 16 and limit film 17, shell 15 Top surface opening, and shell 15 includes: shell 151, first partition 152 and second partition 153, and linkage portion 112 sequentially passes through outer Shell 151, first partition 152 and second partition 153, linkage portion 112 are equipped with limiting slot 1122, and limit film 17 is arranged in shell 151 Between first partition 152, and limit film 17 is fastened in limiting slot 1122, is kept limit film 17 not easily to fall off and is avoided linkage portion 112 move along its axis, and cam 12 is arranged between first partition 152 and second partition 153, make cam 12 only can be around linkage The axle center in portion 112 rotates, and cap 16 covers the top surface opening for being located at shell 15, and cap 16 is detachably connected with shell 15, shell 15 shell, 151 bottom end is equipped with through-hole, passes through for the actuating bar for trigger switch.Shell 15 and cap 16 are bolted, Cap 16 can protect internal shaft 11, cam 12, adjusting gasket 13 and bolt 14, avoid enter into dust and other impurities, limit film 17 are arranged between shell 151 and first partition 152, and shell 15, cap 16 and limit film 17 make shaft 11 and 12 close-fitting of cam Degree is higher, to keep the stability of the trigger device 1 higher.

Optionally, in the present embodiment, open tubular column 154 is equipped with around the through-hole of 151 bottom end of shell, outside for shell 15 Connect the switch main body of trigger switch.Open tubular column 154 and shell 151 are integrally formed, and after open tubular column 154 is snapped into switch main body, are made The trigger device 1 is fixedly connected with switch main body, and therefore, open tubular column 154 keeps the trigger device 1 and the connection of switch main body more steady It is fixed.

Optionally, in the present embodiment, around the through-hole of 151 bottom end of shell be equipped with eight engaging grooves 155, for open Eight boss 211 for closing main body are adapted to engaging, can be to avoid the trigger device after each boss 211 is snapped into each engaging groove 155 1 around actuating bar axis rotation, and shaft 11 can be made to have the direction in eight directions, to meet the feelings in more actual uses Condition.

Fig. 9 is the schematic perspective view of the switch main body of the trigger switch in the utility model embodiment two, Tu10Wei The schematic perspective view of trigger switch in the utility model embodiment two, as shown in Figure 9 and Figure 10, the trigger switch packet Include: switch main body 2 and the trigger device of above-mentioned any one 1, switch main body 2 include: main body cover 21, switching circuit assemblies 22 and actuating bar 23, switching circuit assemblies 22 be located in main body cover 21, actuating bar 23 protrudes main body cover 21, and actuating bar 23 For the trigger switch circuit unit 22 when being pressed down.

Wherein, main body cover 21, during actually using the trigger switch, interconnecting piece 111 drives linkage portion 112 to revolve When going to 3 °, actuating bar 23 moves down a certain distance along its axial direction, and the bottom end of actuating bar 23 supports switching circuit assemblies 22, from And the trigger switch is made to have reached preset triggering effect.

Optionally, in the present embodiment, trigger switch further include: buzzer, buzzer and switching circuit assemblies 22 are electrically Connection, buzzer is for issuing ring when switching circuit assemblies 22 are triggered.When actuating bar 23 supports switching circuit assemblies After 22, the circuit of switching circuit assemblies 22 is switched on, and the circuit between buzzer and power supply is connected, and buzzer rings are to operation Personnel remind, and the prompting function of buzzer is obvious.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that fisrt feature and second feature directly contact or fisrt feature and second feature pass through intermediary mediate contact.

Moreover, fisrt feature can be fisrt feature in second feature above the second feature " above ", " above " and " above " Directly above or obliquely above, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in second feature " it Under ", " lower section " and " following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of fisrt feature water Flat height is lower than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc., it is intended that specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in one or more any embodiment or example.In addition, without conflicting with each other, this The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples Sign is combined.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims

1. a kind of trigger device is applied to trigger switch characterized by comprising shaft, cam, adjusting gasket and bolt；

The shaft includes: interconnecting piece and linkage portion, and the interconnecting piece is connected with the linkage portion, and the interconnecting piece is used to turn The linkage portion is driven to rotate when dynamic, the linkage portion, which is equipped with, adjusts screw hole；

The cam is equipped with linkage through-hole and first through hole, and the linkage portion is threaded through in the linkage through-hole, and the linkage Portion can slide in the linkage through-hole；

The adjusting gasket is arc elastic piece, and the arc end of the adjusting gasket supports residence and states linkage portion, the adjusting gasket Equipped with the second through-hole, and the adjusting gasket is arranged between the first through hole and the adjusting screw hole；

The bolt is successively worn through the first through hole and second through-hole and screw thread rotation is in the adjusting screw hole；

The cam is equipped with and supports groove, the top of the actuating bar for accommodating trigger switch that supports groove, and described supports Groove is held for driving the actuating bar of trigger switch mobile in cam rotation.

2. trigger device according to claim 1, which is characterized in that the opening for adjusting screw hole is set as plane, institute It states adjusting gasket and supports the plane that the opening of adjusting screw hole is stated in residence.

3. trigger device according to claim 1, which is characterized in that the both ends of the adjusting gasket are equipped with a pitching pile Head is set on the inside of the linkage through-hole there are two pitching pile hole, and each pitching pile head is inserted into the pitching pile hole respectively.

4. trigger device according to claim 3, which is characterized in that the pitching pile head is in tip-angled shape.

5. trigger device according to claim 1, which is characterized in that the cam, which is equipped with, hides groove, and described first is logical Hole is located at the bottom of the hiding groove, and the bottom of the hiding groove is plane, and the nut of the bolt is held in described Hide the bottom of groove.

6. trigger device according to claim 1, which is characterized in that further include: shell, cap and limit film；

The linkage portion is equipped with limiting slot, and the limit film is arranged between the shell and the first partition, and the limit Bit slice is fastened in the limiting slot, for limiting the axial movement of the linkage portion；

The cam is arranged between the first partition and the second partition；

Shell shell bottom end is equipped with through-hole, passes through for the actuating bar for trigger switch.

7. trigger device according to claim 6, which is characterized in that be equipped with around the through-hole of the shell bottom end hollow Column, for the switch main body for the external trigger switch of the shell.

8. trigger device according to claim 7, which is characterized in that it is recessed to be equipped with engaging around the through-hole of the shell bottom end Slot is adapted to engaging for the boss with switch main body.

9. a kind of trigger switch characterized by comprising touching described in any one of switch main body and claim 1 to 8 Transmitting apparatus；

The switching circuit assemblies are located in the main body cover；

The actuating bar protrudes the main body cover, and the actuating bar is for triggering the switching circuit group when being pressed down Part.

10. trigger switch according to claim 9, which is characterized in that the trigger switch further include: buzzer；

The buzzer and the switching circuit assemblies are electrically connected, and the buzzer in the switching circuit assemblies for being touched Ring is issued when hair.