CN201181421Y - Press device of limit switch - Google Patents

Abstract

The utility model discloses a pressing device for a limit switch, particularly to a pressing device capable of adjusting the pressing manner of the limit switch. A press key capable of triggering the operation of the limit switch is arranged at the bottom of the limit switch, a plurality of through-positioning holes are formed on the surface of the limit switch, the limit switch can be sheathed on a plurality of positioning levers of a positioning base via the positioning holes, a stopping lever and a pivot lever that are opposite are arranged below each positioning lever, a shaft of a press body is movably and pivotally arranged via the pivot lever, a stopper is arranged on one side the shaft and pushed against the stopping lever on the lateral side of the pivot lever, and a touching plane and an arc-shaped pushing element are arranged on the other side of the shaft, i.e. using the touching plane to touch the press key of the limit switch. The directions of the limit switch and the press body can be changed on the positioning base in order to achieve the purpose that the limit switch is suitable for use at the starting point and the terminal point of a straight-line movement with different position changes.

Description

The press device of limit switch

Technical field

The present invention relates to a kind of press device of limit switch, You Zhike adjusts the press device of the mode of pushing of limit switch, belong to mechanical manufacturing field, belong to the rectilinear motion stroke specifically, as hydraulic cylinder, pneumatic cylinder stretch, contract that stroke is controlled, the rectilinear path displacement of the rotation rectilinear path displacement of screw rod, slide rail type or use caging system in rectilinear lifting rectilinear path displacement etc.

Background technology

In many mechanisms of doing the rectilinear motion stroke, Origin And Destination position in the rectilinear motion stroke, must the limit of utilization switch as the journey of going of rectilinear path, the control of backhaul, and in the rectilinear path of mechanism control stroke conversion person, the most normal user is a limit switch, the limit of utilization switch is installed in the starting point and the sink node position of mechanism's rectilinear path respectively, when mechanism's rectilinear path starting point to go the Cheng Hangjin displacement, and arrive when touching the limit switch in final position, the terminal point limit switch then rectilinear path of real-time switching mechanism changes the backhaul displacement into, when then the rectilinear path of mechanism is got back to the limit switch that touches starting point with the backhaul displacement, the limit switch of starting point again the rectilinear path of switching mechanism for removing Cheng Weiyi, so orthoscopic travel displacement operation, and straight-line displacement stroke system often uses at hydraulic cylinder, stretching of pneumatic cylinder, the stroke that contracts is controlled, the rotation rectilinear path displacement of screw rod, the rectilinear path displacement of slide rail type or use are in rectilinear lifting rectilinear path displacement, can see through the control of limit switch, reach the journey of going of rectilinear path displacement, backhaul is switched and is changed.

And in order to the limit switch of conversion stroke, then as No. 290576 " position limiting structure of convertible stroke " patent cases of the several M of certificate number, the Taiwan patent was filed an application on November 18th, 2005, application case number No. 94219988, and the neck card is announced in the patent gazette on May 11st, 2006, see also shown in Figure 7, for commonly using the three-dimensional exploded view of position limiting structure, it includes fixed strip A, the first limit switch A1, the second limit switch A2, that offers on this fixed strip A that majority is parallel to each other wears groove A3, these wear groove A3 can supply the first limit switch A1 respectively, the second limit switch A2 optionally build-in links, the first limit switch A1, the second limit switch A2 is and is connected in series, and fixed strip A is embedded in the interior caulking groove B11 of the outer casing B1 inside of the motor lead screw B of mechanism, then driving lead screw B21 via motor B2 rotates, and by lead screw B21 drive sensing ring piece B22 work liter back and forth, displacement is fallen, and sensing ring piece B22 is rising, fall in the stroke promptly can be respectively with the conflict touch-control button A11 of the first limit switch A1 of touch control part B221, the touch-control button A21 of the second limit switch A2, but the stroke limit structure of commonly using is when reality is used, still there are many disappearances and inconvenience, as:

The touch-control button A11 of (1) first limit switch A1, the touch-control button A21 of the second limit switch A2 all protrude the outer sub-fraction of housing, the volume of being conflicted is quite little, then easily cause the touch control part B221 of sensing ring piece B22 to compress touch-control button A11, A21 not really or the situation of not conflicting, and can't touch the first limit switch A1, second limit switch A2 action.

(2) this first limit switch A1, the second limit switch A2, though can be on fixed strip A wear the upper and lower position that groove A3 place changes build-in, but can not change touch-control button A11, the left and right direction of A21 of the first limit switch A1, the second limit switch A2, cause the use of the first limit switch A1, the second limit switch A2 to be restricted.

So, how to solve and commonly use limit switch produces change direction, position in assembling, when using problem, for the relevant manufacturer that is engaged in the industry desires most ardently the direction place person that research improves.

Summary of the invention

Fundamental purpose of the present invention is to provide a kind of press device of limit switch to make pressing body can utilize the button of shake-up face conflict limit switch; And limit switch and pressing body can be changed direction on positioning seat, to reach the diverse location variation use that limit switch is applicable to straight-line starting point, terminal point, to solve prior art smallest limit switch is produced problems such as change direction, position in assembling, when using deficiency.

For the technical solution adopted in the present invention that achieves the above object as described below:

A kind of press device of limit switch, but refer to fitting limit switch installation position especially and adjust the press device that difference is pushed mode, comprise that at least limit switch, positioning seat and pressing body form, wherein:

This limit switch is the pilot hole that is provided with plural penetration type, and the bottom is to be provided with the button that can trigger its running;

This positioning seat can be for limit switch assembling location, and the one side surface is to be provided with the plural backstay that can supply limit switch plural number pilot hole to wear, and is respectively equipped with gear-stopping bar, the pivoting lever that is relative formula in plural backstay below;

The movable articulated section that is arranged at positioning seat of this pressing body, it has the axial region that is hubbed at a side pivoting lever, and extend the backstop that is held in pivoting lever side gear-stopping bar in axial region one side, side then extends the shake-up face of the button that contacts limit switch in addition, and other side of shake-up face then extends the pusher shoe of curved arc shape again.

The backstop leverage of this relative formula is positioned at the pivoting lever outside.

The bar footpath of the gear-stopping bar of this relative formula is the bar footpath less than pivoting lever.

The axial region of this pressing body is for being provided with the movable axis hole that is hubbed at pivoting lever.

The present invention has following advantage:

(1) the limit switch button set in the bottom, lie in pivoting lever (or pivoting lever) inside of positioning seat, can be by pressing body to touch towards last pushing tow, the large tracts of land of the shake-up face of utilization, can push this button really, really change the operating mode of limit switch, can not produce off normal and push not really or the situation of not pushing.

(2) limit switch can the front or reverse side be installed on the positioning seat, and utilize the positioning seat pivoting lever, fitting limit switch bottom key position, and at the movable pressing body that articulates of other side pivoting lever, then can change pressing body changes installing on positioning seat position, can be installed in the pivoting lever in left side or the pivoting lever on right side for pressing body, make things convenient for limit switch to be installed in different positions and use, and be not subjected to the restriction of left and right position.

(3) pusher shoe of this pressing body system is the design of curved arc shape, then surpass pusher shoe and pass to the outside at pushing tow body stroke, can be when backhaul because of the design of pusher shoe curved arc shape, for the pushing tow body with the pusher shoe pushing tow that makes progress, hold button with pushing tow shake-up face, and trigger the limit switch running.

Description of drawings

Fig. 1 is a stereo appearance figure of the present invention.

Fig. 2 is a three-dimensional exploded view of the present invention.

Fig. 3 is the three-dimensional exploded view of preferred embodiment of the present invention.

Fig. 4 is the side view of preferred embodiment of the present invention.

Fig. 5 pushes preceding enlarged drawing for press device of the present invention.

Fig. 6 is the enlarged drawing of press device of the present invention after pushing.

Fig. 7 commonly uses the three-dimensional exploded view of position limiting structure.

The main element symbol description

1, limit switch

11, pilot hole 13, electrode pin

12, button

2, positioning seat

21, backstay 24, pivoting lever

22, gear-stopping bar 25, gear-stopping bar

23, pivoting lever

3, pressing body

31, axial region 32, shake-up face

310, axis hole 33, pusher shoe

311, backstop

4, gearshift

41, starting point 431, moving member

42, terminal point 432, pushing tow body

43, drive screw

A, fixed strip

A1, the first limit switch A2, second limit switch

A11, touch-control button A21, touch-control button

A3, wear groove

B, motor lead screw mechanism

B1, outer casing B21, lead screw

B11, interior caulking groove B22, sensing ring piece

B2, motor B221, touch control part

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present invention is illustrated that in detail its feature and function are as follows.

See also Fig. 1, Fig. 2, shown in Figure 3, three-dimensional exploded view for stereo appearance figure of the present invention, three-dimensional exploded view, preferred embodiment, find out that by knowing shown in the figure press device of the present invention is by comprising that limit switch 1, positioning seat 2 and pressing body 3 are formed, wherein:

This limit switch 1 is for to be provided with plural pilot hole 11 in the surface, and the bottom promptly is provided with the button 12 that can trigger its running, and the top then is provided with electrode pin 13.

This positioning seat 2 ties up to a side surface and is provided with plural backstay 21, and is respectively equipped with gear-stopping bar 22,25 and pivoting lever 23,24 below each backstay 21.

These pressing body 3 cordings have axial region 31, for to be provided with the axis hole 310 that runs through, and have extended backstop 311 at axial region 31 1 side-lines in the axial region 31, and in other side of axial region 31, are the pusher shoe 33 of shake-up face that extends respectively 32 and curved arc shape.

Above-mentioned each member is when assembling, but this each penetration type pilot hole 11 of limit switch 1 mat, each backstay 21 for positioning seat 2 penetrates respectively, and the button 12 of limit switch 1 bottom, then be positioned at a side pivoting lever 23 inboards, again in other side pivoting lever 24 places, axial region 31 for pressing body 3 wears with axis hole 310, and backstop 311 by axial region 31 other sides, be resisted against the gear-stopping bar 25 of pivoting lever 24 sides, avoid pressing body 3 tenesmus, can be subjected to the external force pushing tow in pressing body 3 bottoms, make the shake-up face 32 of pressing body 3 upwards press the button 12 of limit switch 1, reach the press device that limit switch 1 of the present invention is finished in assembling.

And aforementioned positioning seat 2 is to be positioned at pivoting lever 23,24 outer side edges in the set respectively gear-stopping bar 22,25 in plural backstay 21 belows; And the bar of gear- stopping bar 22,25 directly is the bar footpath less than pivoting lever 23,24.

See also Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, three-dimensional exploded view for preferred embodiment of the present invention, the side view of preferred embodiment, enlarged drawing before press device is pushed, enlarged drawing after press device is pushed, find out by knowing among the figure, the limit switch 1 of press device of the present invention, for can front or reverse side mode, utilize plural pilot hole 11, be sheathed on respectively on each backstay 21 of positioning seat 2, then can change button 12 positions of limit switch 1 bottom, for button 12 a close side pivoting lever 23 inside, and on the pivoting lever 24 of other side of button 12 positions, the axial region 31 of sheathed pressing body 3, for pressing body 3 at limit switch 1, the activity displacement is done in positioning seat 2 bottoms.

Then can utilize the device of press device collocation use at the orthoscopic stroke, limit switch 1 is cooperated the gearshift 4 of orthoscopic displacement, and can utilize electrode pin 13 to be electrically connected at starting point 41 positions of rectilinear path respectively, terminal point 42 positions, install in the mode of front or reverse side for limit switch 1, then when gearshift 4 starts running, the moving member 431 that utilizes drive screw 43 interlock spiral shells to establish is made the displacement stroke of orthoscopic, when starting point 41 places of moving member 431 at gearshift 4, can utilize the pushing tow body 432 that is convexly equipped with on the moving member 431 to touch pressing body 3, pressing body 3 is upwards passed, hold the button 12 of limit switch 1 with the shake-up face 32 of mat pressing body 3, reach the start of pushing really, untrue situation is pushed in unlikely generation, and start bit moving device 4 runnings smoothly, carry out the orthoscopic displacement, and when moving member 431 forward shift on drive screw 43, when moving member 431 catatrepsis during to other side terminal point 42 positions, the pushing tow body 432 on the moving member 431 then, the i.e. ejection curved arc shape pusher shoe 33 of side pressing body 3 in addition up, to utilize curved arc shape pusher shoe 33 upwards to produce the extruding force and the shake-up face of passing 32 of elastic deformation, the shake-up face of making 32 is held the button 12 of another limit switch 1, also can reach the effect of pushing really, can not push not really or the situation of not pushing, and see through limit switch 1 and change the straight-line displacement stroke that gearshift 4 is done reverse running, make drive screw 43 be reverse running, and drive moving member 431 upstream shifts and be returned to starting point 41 directions, orthoscopic displacement stroke that can completion bit moving device 4 back and forth operates; And because of the pusher shoe 33 of pressing body 3 be the design that is the curved arc shape, the effect that when being subjected to pushing tow body 432 and holding, can upwards produce elastic deformation, then surpass pusher shoe 33 and pass extremely outside at pushing tow body 432 strokes, when backhaul still because of the design of pusher shoe 33 curved arc shapes, for pushing tow body 432 with pusher shoe 33 pushing tow upwards, touch face 32 with mat pusher shoe 33 pushing tows and support button 12, and see through 1 running of button 12 triggering limit switches.

And limit switch 1 of the present invention, utilize set plural penetration type pilot hole 11, and all can be embedded at positioning seat 2 for limit switch 1 front or reverse side, promptly see through each backstay 21 that each pilot hole 11 is embedded at positioning seat 2 respectively, and limit switch 1 front is installed on the positioning seat 2,12 of the buttons of its bottom are positioned at a side pivoting lever 23 inside, and in other side pivoting lever 24 places the axial region 31 for pressing body 3 wears with axis hole 310, for pressing body 3 mat pivoting levers 24 is the axle center, at limit switch 1, fan-shaped swing displacement is done in left side, positioning seat 2 belows, and backstop 311 is supported at gear-stopping bar 25 places; If limit switch 1 is installed on the positioning seat 2 with reverse side, 12 of the buttons of its bottom are positioned at other side pivoting lever 24 inside, and on away from the pivoting lever 23 of button 12, supply the axial region 31 of pressing body 3 to wear with axis hole 310, for pressing body 3 mat pivoting levers 23 is the axle center, fan-shaped swing displacement is done on the right side below limit switch 1, positioning seat 2, and backstop 311 is supported at gear-stopping bar 22 places; Promptly reach pressing body 3 and can select to be installed in positioning seat 2 left sides or right side pivoting lever 23,24.

Be with, the above only is preferred embodiment of the present invention, non-so limit to claim of the present invention, limit switch 1 of the present invention can the front or being installed on the positioning seat 2 of reverse side, and utilize the pivoting lever 23 (or pivoting lever 24) of positioning seat 2 bottoms to be pivoted for pressing body 3 activities, and the switch 1 that reaches capacity can be arranged in pairs or groups the gearshift 4 of installing with the installation of different directions, make things convenient for drive screw 43 to drive the purpose of moving member 431 pushing tow pressing bodies 3, and utilize pressing body 3 to hold the button 12 of limit switch 1 bottom, and then changeable limit switch 1 oppositely operates, in order to do reaching the back and forth purpose of running of conversion orthoscopic stroke, so can reach the structure of aforementioned effect such as, device is contained by the present invention all should, simple and easy modification of this kind and equivalent structure change, and all should in like manner be contained in the claim of the present invention, close and give Chen Ming.

The press device of the invention described above limit switch when reality is used, for can having following advantage, as:

(1) limit switch 1 button 12 set in the bottom, lie in pivoting lever 23 (or pivoting lever 24) inside of positioning seat 2, can be by pressing body 3 with shake-up face 32 pushing tow upwards, the large tracts of land of the shake-up face of utilization 32, can push this button 12 really, really change the operating mode of limit switch 1, can not produce off normal and push not really or the situation of not pushing.

(2) limit switch 1 can the front or reverse side be installed on the positioning seat 2, and utilize positioning seat 2 pivoting levers 23, fitting limit switch 1 bottom button 12 positions, and at other the side pivoting lever 24 movable pressing bodies 3 that articulate, then can change pressing body 3 changes installing on positioning seat 2 position, can be installed in the pivoting lever 23 in left side or the pivoting lever 24 on right side for pressing body 3, make things convenient for limit switch 1 to be installed in different positions and use, and be not subjected to the restriction of left and right position.

(3) pusher shoe 33 of this pressing body 3 is the design that is the curved arc shape, then surpass pusher shoe 33 and pass extremely outside at pushing tow body 432 strokes, can be when backhaul because of the design of pusher shoe 33 curved arc shapes, for pushing tow body 432 with pusher shoe 33 pushing tow upwards, touch face 32 with pushing tow and hold button 12, and trigger limit switch 1 running.

The present invention is installed on the positioning seat for being primarily aimed at limit switch; and limit switch can be done the installing of front or reverse side; and in positioning seat bottom with the pivoting lever activity pressing body that is pivoted; and the button that supplies pressing body can push the limit switch bottom really is main key protection point; be only to make limit switch be assembled in the orthoscopic gearshift with different directions; and has a starting point that can cooperate gearshift; the advantage of final position installing different directions limit switch; the above only is preferred embodiment of the present invention; non-so promptly limit to claim of the present invention; so the simple and easy modification and the equivalent structure that use instructions of the present invention and graphic content to do such as change; all should in like manner be contained in the claim of the present invention, close and give Chen Ming.

Claims (4)

1, a kind of press device of limit switch, but refer to fitting limit switch installation position especially and adjust the press device that difference is pushed mode, comprise that at least limit switch, positioning seat and pressing body form, it is characterized in that:

This limit switch is the pilot hole that is provided with plural penetration type, and the bottom is to be provided with the button that can trigger its running;

This positioning seat can be for limit switch assembling location, and the one side surface is to be provided with the plural backstay that can supply limit switch plural number pilot hole to wear, and is respectively equipped with gear-stopping bar, the pivoting lever that is relative formula in plural backstay below;

The movable articulated section that is arranged at positioning seat of this pressing body, it has the axial region that is hubbed at a side pivoting lever, and extend the backstop that is held in pivoting lever side gear-stopping bar in axial region one side, side then extends the shake-up face of the button that contacts limit switch in addition, and other side of shake-up face then extends the pusher shoe of curved arc shape again.

2, the press device of limit switch according to claim 1 is characterized in that the backstop leverage of this relative formula is positioned at the pivoting lever outside.

3, the press device of limit switch according to claim 1 is characterized in that the bar footpath of the gear-stopping bar of this relative formula being the bar footpath less than pivoting lever.

4, the press device of limit switch according to claim 1 is characterized in that the axial region of this pressing body, for being provided with the movable axis hole that is hubbed at pivoting lever.

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