CN201122533Y

CN201122533Y - Travel switch

Info

Publication number: CN201122533Y
Application number: CNU2007200450403U
Authority: CN
Inventors: 朱建新
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-04
Filing date: 2007-11-04
Publication date: 2008-09-24
Anticipated expiration: 2017-11-04

Abstract

The utility model discloses a travel switch, which comprises a casing, a pushing rod on the casing, a dynamic contact component connected with the pushing rod through a spring leaf, a static contact component corresponding to the dynamic contact component which is fixed in the casing, a restoring spring connected with the pushing rod and a connecting terminal connected with the static contact component, wherein a jack catch is formed by the two side faces of the travel switch which face the pushing rod, extending outwards along the direction parallel to the pushing rod. When the jack catch structure is installed, a clamping groove on the jack catch is only required to be mutually clamped and buckled with a protuberance on the installing component, without rotating and twisting the bolt by a screwdriver again, thus the operation is convenient, the structure is reasonable, the volume is small, the weight is light, simultaneously, the compulsive disconnecting ability is strong, and the travel switch has a self-purification function of the band contact and a permanent magnetic arc extinguishing function.

Description

Travel switch

Technical field

The utility model relates to a kind of travel switch.

Background technology

The moving contact parts that existing travel switch generally comprises the push rod that is installed in the housing, be connected with push rod by reed, the back-moving spring that is fixed on parts such as fixed contact on the housing and is fixed on enclosure interior, on installation form, common travel switch adopts screw to install more.In addition, it is big that common travel switch also exists electric arc mostly, and contact easy-sintering, contact oxidation and cause the defective of loose contact have influenced the dependability of product.

Summary of the invention

The utility model purpose provides a kind of travel switch, it has claw structure, during installation need only with the draw-in groove on the claw be mounted parts on projection mutually buckle get final product, need not re-use screwdriver screws screw and installs, easy to use, rational in infrastructure, volume is little, in light weight, simultaneously its force that rupture capacity is strong, band contact self-purification function and permanent magnetism arc extinguishing function.

The technical solution of the utility model is: a kind of travel switch, the moving contact parts that comprise push rod on housing, the housing, are connected with push rod by a reed, be fixed in the housing and the fixed contact parts of moving contact parts relative set, the back-moving spring that links to each other with push rod and the binding post that links to each other with the fixed contact parts, described travel switch two sides towards an end of push rod along the direction parallel formation claw that stretches out with push rod.

The further technical scheme of the utility model is: a kind of travel switch, the moving contact parts that comprise push rod on housing, the housing, are connected with push rod by a reed, be fixed in the housing and the fixed contact parts of moving contact parts relative set, the back-moving spring that links to each other with push rod and the binding post that links to each other with the fixed contact parts, described travel switch two sides towards an end of push rod along the direction parallel formation claw that stretches out with push rod; Described moving contact parts comprise guide rod post and last moving contact and the following moving contact fixed with the guide rod post, described upper and lower moving contact can contact with the upper and lower fixed contact of fixed contact parts respectively, also be fixed with seesaw on the described guide rod post, described seesaw can connect with the inner end of push rod towards a side outer end of push rod, seesaw dorsad a middle side part of push rod and fulcrum that housing is provided with to supporting; Described claw is provided with draw-in groove, draw-in groove can fix with the complementary protuberance that parts were provided with that travel switch is connected on; Also be provided with magnetic sheet with the corresponding outside of dynamic and static contact position on the described housing.

The utility model advantage is:

1. the utlity model has claw structure, during installation need only with the draw-in groove on the claw be mounted parts on projection mutually buckle get final product, need not re-use screwdriver and screw screw and install, easy to use, rational in infrastructure, volume is little, in light weight.

2. the utlity model has the seesaw structure, force rupture capacity strong, can prevent effectively that dynamic and static contact from galvanic corrosion taking place and bond together, safe and reliable.

3. the utility model moving contact is when leaving fixed contact, earlier with the contact-making surface of fixed contact on a bit of distance of translation leave again, can remove the impurity on the contact-making surface, have the contact self-purification function; Housing is provided with magnet, has permanent magnetism arc extinguishing function.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model end view;

Fig. 3 is an Application Example one of the present utility model;

Fig. 4 is an Application Example two of the present utility model.

Wherein: 1 housing; 2 push rods; 3 fixed contact parts; Fixed contact on 31; 32 times fixed contacts; 4 moving contact parts; 41 guide rod posts; Moving contact on 42; 43 times moving contacts; 44 seesaws; 5 reeds; 6 back-moving springs; 7 claws; 71 draw-in grooves; 8 magnetic sheets; 9 projections; 10 fulcrums; 110,000 turn-ofves close; 12 auxiliary relays; 13 binding posts.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: as shown in Figure 1 and Figure 4, a kind of travel switch, comprise housing 1, push rod 2 on the housing 1, the moving contact parts 4 that are connected with push rod 2 by a reed 5, be fixed in the housing 1 and the fixed contact parts 3 of moving contact parts 4 relative set, back-moving spring 6 that links to each other with push rod 2 and the binding post 13 that links to each other with fixed contact parts 3, described travel switch two sides stretch out along the direction parallel with push rod 2 towards an end of push rod and form claw 7, described claw 7 is provided with draw-in groove 71, draw-in groove 71 can fix with the complementary protuberance that parts were provided with 9 that travel switch is connected on.

Described moving contact parts 4 comprise guide rod post 41 and last moving contact 42 and the following moving contact 43 fixed with guide rod post 41, described upper and lower moving contact 42,43 can contact with the upper and lower fixed contact 31,32 of fixed contact parts 3 respectively, also be fixed with seesaw 44 on the described guide rod post 41, described seesaw 44 can connect with the inner end of push rod 2 towards a side outer end of push rod 2, seesaw 44 dorsad a middle side part of push rod 2 and fulcrum 10 that housing 1 is provided with to supporting.When the contact galvanic corrosion takes place and when bonding together, push rod presses down, its inner end compresses mutually with the seesaw outer end, under the effect of fulcrum, can and then make the contact disconnection of bonding so that the guide rod post is forced to appear on the stage.

Also be provided with magnetic sheet 8 with the corresponding outside of dynamic and static contact position on the described housing 1, have permanent magnetism arc extinguishing function.

Application Example one: as shown in Figure 3, for the utility model is applied in embodiment on the auxiliary relay 12, auxiliary relay 12 is provided with the draw-in groove 71 corresponding projections 9 on several and the travel switch claw 7, and travel switch is installed on the auxiliary relay 12 by draw-in groove 71 and projection 9 buckles.

Application Example two: as shown in Figure 4, for being applied in ten thousand turn-ofves, the utility model closes embodiment on 11, ten thousand turn-ofves close 11 be provided with several with travel switch claw 7 on draw-in groove 71 corresponding projections 9, travel switch is installed on the ten thousand turn-ofves pass 11 by draw-in groove 71 and projection 9 buckles.

The utlity model has claw structure, during installation need only with the draw-in groove on the claw be mounted parts on projection mutually buckle get final product, need not re-use screwdriver and screw screw and install, easy to use, rational in infrastructure, volume is little, in light weight; The utlity model has the seesaw structure, force rupture capacity strong, can prevent effectively that dynamic and static contact from galvanic corrosion taking place and bond together, safe and reliable; The utility model moving contact when leaving fixed contact, earlier with the contact-making surface of fixed contact on a bit of distance of translation leave again, can remove the impurity on the contact-making surface, have the contact self-purification function.

Claims

1. travel switch, the moving contact parts (4) that comprise push rod (2) on housing (1), the housing (1), are connected with push rod (2) by a reed (5), be fixed in the housing (1) and the fixed contact parts (3) of moving contact parts (4) relative set, the back-moving spring (6) that links to each other with push rod (2) and the binding post (13) that links to each other with fixed contact parts (3), it is characterized in that: described travel switch two sides are towards the end edge of the push rod direction parallel with push rod (2) the formation claw (7) that stretches out.

2. travel switch according to claim 1, it is characterized in that: described moving contact parts (4) comprise guide rod post (41) and last moving contact (42) and the following moving contact (43) fixed with guide rod post (41), on described, following moving contact (42,43) respectively can with fixed contact parts (3) on, following fixed contact (31,32) contact, also be fixed with seesaw (44) on the described guide rod post (41), described seesaw (44) can connect with the inner end of push rod (2) towards a side outer end of push rod (2), seesaw (44) dorsad a middle side part of push rod (2) and fulcrum (10) that housing (1) is provided with to supporting.

3. travel switch according to claim 1 is characterized in that: described claw (7) is provided with draw-in groove (71), and draw-in groove (71) can fix on the complementary protuberance that parts were provided with (9) that is connected with travel switch.

4. travel switch according to claim 1 is characterized in that: described housing (1) is gone up with the corresponding outside of dynamic and static contact position and also is provided with magnetic sheet (8).