CN2215765Y - Double-function stroke switch - Google Patents

Abstract

The utility model relates to a double-function stroke switch, which is composed of a casing, movable contacts, stationary contacts, an axle, a pendulum rod, a suspension arm, a standing sheet, a clamping sheet, a spring, etc. Two sets of linkage mechanisms are used for controlling the two sets of movable contacts and stationary contacts. One set of mechanism works on one set of movable contacts and stationary contacts when the utility model is in normal work. During malfunction, the pendulum rod is contacted, the axle further rotates an angle, the other set of mechanism is caused to work on the movable contacts and the stationary contacts, the state of closing is changed into opening, and a power supply is cut off, so the safety of equipment is ensured. The utility model has the advantages of simple structure, small size, large power, low cost and high safety, which is applied to stroke equipment.

Description

Double-function stroke switch

The utility model belongs to the travel switch technical field, is a kind of difunctional travel switch.

At present, the travel switch of selling on the market generally is used for the spacing of mechanical movement, uses in mechanical movement, in case break down, mechanical movement is uncontrollable, generally speaking, also needs to install separately two position-sensing switches, break down and make equipment out of service with position-sensing switch, to prevent device damage, so both increased installation fee, increase cost again.

The purpose of this utility model provides that a kind of volume is little, power is big, cost is low, the normal difunctional travel switch that can both control of operation and chance failure.

The purpose of this utility model is achieved in that difunctional travel switch is by housing, axle, fork, upright sheet, card, spacer, spring, cantilever, big column, post, moving contact, the first-class parts of stationary contact are formed, housing is divided into upper left groove, upper right groove, in the upper right groove inside casing is arranged, chamber, left contact is arranged under the groove, chamber, right contact, upper right groove and upper left groove one side installation shaft, one end of housing outer shaft is by the fixing fork of axle sleeve, the axle other end is fixed on the upper left groove inside casing, the projection that is stuck in the card is arranged on the upper right fluted shaft, axle is the fixing card of useful spacer up and down, the axle upper protruding block is stuck in the card slot, the card other end passes spacer, spring and fixing is equipped with in the card termination, the groove that passes upright sheet is arranged in the card between spacer, the post of upright sheet lower end and interior dress stage clip is fixed, post places chamber, right contact, fixing moving contact on the stage clip post up and down, between the upper left groove inside casing cantilever that is contained on the axle is arranged, upper left groove opposite side is equipped with the fixedly spacer of inserted sheet, inserted sheet inserts and is equipped with in the big column of stage clip perpendicular to inserted sheet, be connected with spring between another termination of inserted sheet and the cantilever, big column places left contact indoor, be fixed with moving contact on the stage clip big column up and down, chamber, contact, the left and right sides is fixed eight fixed contacts up and down, and the fixed contact brace passes outside the housing.

The utility model compared with prior art has the advantages that volume is little, power is big, cost is low, safe and reliable, except that carrying out normal travel control, when breaking down, behind the shake-up fork, stops the machine operation, guarantees machine safety.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is a left view of the present utility model.

Fig. 4 is the A-A cutaway view of the utility model Fig. 3.

Fig. 5 is the B-B cutaway view of the utility model Fig. 3.

Fig. 6 is the C-C cutaway view of the utility model Fig. 3.

Number in the figure is described as follows: 1 spring, 2 spacers, 3 cards, 4 upright sheets, 5 axle sleeves, 6 forks, 7,8 spacers, 9 cantilevers, 10 inside casings, 11 big columns, 12 inserted sheets, 13 spacers, 14 upper left grooves, 15 upper right grooves, 16 springs, 17 fixed contacts, 18 moving contacts, 19 stage clips, 20 moving contacts, 21 fixed contacts, 22 projections, 23 braces, 24 engaging lugs, 25 stage clips, 26 housings, 27 posts, chamber, 28 left contact, chamber, 29 right contact, fixed contact chambers 30, fixed contact chambers 31,32 moving contacts, 33 moving contacts, 34 braces, 35 braces, 36 braces, 37 braces, 38 braces, 39 braces, 40 braces, 42 fixed contacts, 43 fixed contacts, 44 fixed contacts, 45 fixed contacts, 46 moving contacts, 47 moving contacts, 48 moving contacts, 49 moving contacts, 50 buttons, 51 screws.

As shown in the figure, difunctional travel switch is by housing 26, axle 7, fork 6, upright sheet 4, card 3, spacer 2,3, spring 1,16, cantilever 9, big column 11, post 27, moving contact 18,20, fixed contact 17,21 parts such as grade are formed, housing 26 is divided into upper left groove 14, upper right groove 15, in the upper right groove 15 inside casing 10 is arranged, chamber, left contact 28 is arranged under the groove, chamber, right contact 29, upper right groove 15 and upper left groove 14 1 side installation shaft 7, housing 26 outer ends pass through fixedly fork 6 of axle sleeve 5, end is fixed on the inside casing 10 of upper left groove 14 in addition, the projection 22 that is stuck in the card 3 is arranged on 15 axles of upper right groove, axle useful spacer 2 about in the of 7,8 fixing cards 3, card 3 other ends pass spacer 2, it is fixing that spring 1 is equipped with in card 3 terminations, at spacer 2, the groove that passes upright sheet 4 is arranged in the card 3 between 8, the post 27 of upright sheet 4 lower ends and interior dress stage clip 25 is fixing, post 27 places in the chamber, right contact 29, fixing moving contact 32 on the column 27 of stage clip about in the of 25,33,48,49, upper left groove 14 inside casings 10, between have and be contained in the cantilever 9 of axle on 7, upper left groove 14 opposite sides are equipped with the fixedly spacer 13 of inserted sheet 12, inserted sheet 12 inserts perpendicular to inserted sheet 12, be equipped with in the big column 11 of stage clip 19, be connected with spring 16 between inserted sheet 12 another terminations and the cantilever 9, big column 11 places in the chamber, left contact 28, be fixed with moving contact 18 on the big column 11 of stage clip about in the of 19,20,46,47, chamber, contact, the left and right sides 28,29, fix eight fixed contacts 17 up and down, 21,30,31,42,43,44,45, eight braces 23 of fixed contact, 34,35,36,37,38,39,40 pass outside the housing 26.Cantilever on projection on the axle and the axle differs certain angle, and during operate as normal, cantilevered swing impels the contact of sound contact, opens, when breaking down, run into fork, make fork move an angle again, projection on the axle and card opening break away from, and under the effect of post spring, open the sound contact.

When in grinding machine, using, fork teeter under the effect of mechanism, drive axle and come back rotation, cantilever swings up and down, and drives the inserted sheet swing by spring, and inserted sheet drives big column and moves up and down, when big column moves down, stage clip is pressed to down fixed contact to the lower moving contact that is fixed on the big column, and when big column moved up, stage clip was pressed to fixed contact to the last moving contact that is fixed on the big column.When the grinding machine circuit broke down, grinding machine moved along a direction, when running into fork, fork continues swing forward, and driving axle changes an angle, and the projection actuating card on the axle is moved, groove and card on the upright sheet are broken away from, and at this moment the post inner spring is upspring, and moving contact and fixed contact are broken away from.

When on crane, using, switch keeps on-state during normal the use, when electric fault takes place when, crane moves along a direction, runs on the fork, and axle is rotated, projection actuating card on the axle is moved, groove and card on the upright sheet are broken away from, and the post inner spring is upspring, and moving contact and fixed contact are broken away from.

Claims (1)

1, a kind of difunctional travel switch, it is by housing, axle, fork, upright sheet, card, spacer, spring, cantilever, big column, post, moving contact, the first-class parts of stationary contact are formed, it is characterized in that housing is divided into upper left groove, upper right groove, in the upper right groove inside casing is arranged, chamber, left contact is arranged under the groove, chamber, right contact, upper right groove and upper left groove upside installation shaft, one end of housing outer shaft is by the fixing fork of axle sleeve, the axle other end is fixed on the upper left groove inside casing, the projection that is stuck in the card is arranged on the upper right fluted shaft, axle is the fixing card of useful spacer up and down, the axle upper protruding block is stuck in the card slot, the card other end passes spacer, spring and fixing is equipped with in the card termination, the groove that passes upright sheet is arranged in the card between spacer, the post of upright sheet lower end and interior dress stage clip is fixed, post places chamber, right contact, fixing moving contact on the stage clip post up and down, between the upper left groove inside casing cantilever that is contained on the axle is arranged, upper left groove opposite side is equipped with the fixedly spacer of inserted sheet, inserted sheet inserts perpendicular to inserted sheet, be equipped with in the big column of stage clip, be connected with spring between the inserted sheet other end and the cantilever, big column places left contact indoor, be fixed with moving contact on the stage clip big column up and down, chamber, contact, the left and right sides is fixed eight fixed contacts up and down, and the fixed contact brace passes outside the housing.

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