CN201886916U - Safety switch system for grass cutter - Google Patents

Abstract

The utility model relates to a safety switch system for a grass cutter, comprising a trigger switch controlling the on-off of a circuit of the grass cutter, and a safety switch controlling the close/disconnection of a triggering mechanism, wherein the safety switch system also comprises a triggering lever connected with the trigger switch and the safety switch, the triggering lever is provided with a pivoting point around which the triggering lever can pivot, and the distance from a first contact point between the safety switch and the triggering lever to the pivoting point is larger than the distance from a second contact point between the trigger switch and the triggering lever to the pivoting point. The safety switch system achieves sensitive triggering and labor-saving operation.

Description

The safety switch system of hay mover

Technical field

The utility model relates to a kind of hay mover safety switch system.

Background technology

At present, some gardens are used more general with instrument in daily life.But these instruments often have sharp blade and some other the operator are had the parts of potential hazard, therefore must consider operator's safety problem when these instruments of design, and the possibility that makes faulty operation damage reduces as far as possible.Industry standard also can be stipulated the safety design on some instruments, to guarantee operator's safety.For example as the garden tool of some outdoor uses, guidance panel must protect, to prevent causing damage as bring dangerous of operator's misoperation or to it.

Yet, stand in operator's angle, preferably can design the place that the operator touches easily on instrument on the guidance panel, such as the housing top of the instrument that moves on the ground.Automatic mower is placed in usually on the meadow and mows voluntarily, and the border signalization line in the zone of mowing on the meadow, hay mover move voluntarily in the zone of appointment according to the signal of gathering and mow.Such hay mover can be battery-operated, and can get back to charging station voluntarily and charge when electric weight is not enough; Can also be that regenerative resources such as solar energy, wind energy drive.This hay mover can be worked voluntarily and do not needed the frequent operation of operator, therefore when baby or pet are had a mind to owing to curiosity or by mistake touch hay mover, avoid it to be subjected to the injury of hay mover.

Increase the guard shield of slip on the guidance panel of hay mover in the market.When the operator needs the manipulation operation panel, open guard shield and can touch guidance panel; When not needing to control, the guard shield that closes makes guidance panel be in the protection of guard shield.Guard shield is opened or closed by Connection Element control by safety switch usually, and safety switch and Connection Element often are exposed in the external environment condition, wind, Exposure to Sunlight or easy down the wearing out that drench with rain, cause reduce useful life.Perhaps cause damage because of children or the frequent touching of pet.

The utility model content

In view of this, the purpose of this utility model is to provide a kind of hay mover safety switch system of raising in useful life.

The technical scheme that the prior art problem that solves the utility model is adopted is: a kind of hay mover safety switch system, the trigger switch that comprises the connecting and disconnecting of the circuit of controlling hay mover, the safety switch that contacts with triggering office, wherein, the safety switch system also comprises respectively the triggering lever that contacts with safety switch with trigger switch, trigger lever and have pivotal point and can pivot around pivotal point, safety switch and the first make contact that triggers lever to the distance of pivotal point greater than second contact point of trigger switch and triggering lever distance to pivotal point.

Preferably, pivotal point is positioned at an end that triggers lever, and first make contact is positioned at the other end that triggers lever, and second contact point is between the two ends of triggering lever.

Preferably, pivotal point is provided with elastic component, provides restoring force for triggering lever.

Preferably, trigger the contact site that lever has arch, have first make contact on the contact site.

Preferably, trigger switch has the triggering button, when the triggering lever is in the primary importance of extruding triggering button, triggers the circuit turn-on that button is in normal condition and hay mover.

Preferably, when the triggering lever is in the second place of not pushing the triggering button, trigger the circuitry cuts that button is in excited state and hay mover.

Preferably, the triggering lever is subjected to the driving of safety switch and switches between the primary importance and the second place pivotally around pivotal point.

Preferably, the safety switch system also has control panel, can be used for hiding the cover plate of control panel, and cover plate is connected with safety switch, and when safety switch control cover plate hid control panel, safety switch drove the triggering lever and is positioned at primary importance.

Preferably, when safety switch control cover plate did not hide the instruction input unit, safety switch drove the triggering lever and is positioned at the second place.

Preferably, trigger switch is fixed on the housing of hay mover by press strip.

Compared with prior art, the beneficial effects of the utility model are: safety switch triggers contact-making switch by triggering lever, and the first make contact that safety switch contacts with the triggering lever to the distance that triggers the lever pivot turning point greater than the distance that triggers second contact point that lever contacts with trigger switch, therefore the triggering button of trigger switch itself does not need bigger triggering stroke, makes to trigger button raising in useful life.

Description of drawings

Above-described the purpose of this utility model, technical scheme and beneficial effect can be described and clearly acquisition simultaneously in conjunction with the accompanying drawings by the following detailed description that can realize specific embodiment of the utility model.

Identical label in accompanying drawing and the specification is used to represent element identical or that be equal to symbol.

Fig. 1 is the schematic diagram of the hay mover of an embodiment of the present utility model.

Fig. 2 is the schematic diagram of the safety switch system of hay mover shown in Figure 1.

Fig. 3 is the exploded perspective view of the safety switch system of hay mover shown in Figure 1.

Fig. 4 is the exploded perspective view of another angle of the safety switch system of hay mover shown in Figure 1.

Fig. 5 is the schematic diagram that the safety switch of hay mover shown in Figure 1 is in first state.

Fig. 6 is the schematic diagram that the safety switch of hay mover shown in Figure 1 is in second state.

Fig. 7 is the enlarged diagram of the trigger switch of safety switch shown in Figure 5.

Fig. 8 is the enlarged diagram of the trigger switch of safety switch shown in Figure 6.

1, hay mover 2, housing 3, charging inlet

4, wheel 5, end cap 6, guard shield

7, safety switch 8, trigger switch 21, front end

22, rear end 23, outer surface 24, inner surface

25, depressed part 26, lead 27, stage clip

28, rail groove 29, support 61, slide rail

62, projection 63, handle 71, dividing plate

72, briquetting 73, moving block 74, wind spring

75, locating part 76, stopper slot 77, draw-in groove

79, first fixture 81, triggering button 82, triggering lever

83, switch enclosure 84, press strip 85, pivotal point

86, second contact point 87, first make contact 88, contact site

89, elastic component 241, second fixture 242, the 3rd fixture

721, first support column 731, second support column 732, the 3rd support column

733, inboard 734, the outside

Embodiment

As shown in Figure 1, in an embodiment of the present utility model, automatic mower 1 can be in the working region that is limited be in advance walked voluntarily and is carried out mowing work along a route.Hay mover 1 is battery-driven, and when the sensing unit (not shown) detected the battery electric quantity deficiency, hay mover 1 can be got back to charging station voluntarily and charge.Hay mover 1 comprises the housing 2 that covers on the pedestal (not shown), and housing 2 is divided into front end 21 and rear end 22 along the direction of advance of hay mover 1.Has charging inlet 3 at front end 21.Thereby charging inlet 3 can electrically connect with the charging station (not shown) and charge.22 have wheel 4 in the rear end, and the motor (not shown) that wheel 4 is positioned in the housing 2 drives and the mobile and moving direction of control mowing.The trundle (not shown) that has also had support and guide effect in place near front end 21.Hay mover 1 also comprises safety switch system (not shown), has concrete introduction in describing after a while.

The roughly curved structure of housing 2, it has towards the outer surface 23 of external environment with towards the inner surface 24 of pedestal.Have end cap 5 on the outer surface 23 of housing 2, end cap 5 can cover the opening on the housing 2.End cap 5 is operationally opened on housing 2, thereby opening is exposed.In the present embodiment, end cap 5 is near the front end 21 of outer surface 23.End cap 5 can be opened rotationally around pivotal axis, and pivotal axis is for flatly being provided with.By opening end cap 5, the operator can carry out dismounting or adjust its cutting-height the cutting blade (not shown).

The safety switch system is included in the guard shield 6 of the place setting of close end cap 5 on the outer surface 23.Guard shield 6 is used to protect the guidance panel (not shown).Guidance panel is positioned at the inside of hay mover 1, and it is used for the operator and gives hay mover 1 input instruction.The handle 63 of the person's that has the handled easily on the guard shield 6 hand grip.Guard shield 6 can be opened or be closed, and when guard shield 6 was opened, guidance panel promptly contacted with external environment, and the operator can directly touch guidance panel easily; When guard shield 6 closures; guidance panel is arranged in the confined space of housing 2 and guard shield 6 formation; this moment, the operator can't touch guidance panel, so can not operate this panel and the protection guidance panel is not subjected to the influence that the external world exposes to the weather and causes aging malfunctioning when hay mover 1 operate as normal.

As shown in Figures 2 and 3, the edge of guard shield 6 is provided with the slide rail 61 that extends along forward end 21 directions.Slide rail 61 is connected with guard shield 6 one.Slide rail 61 can slide along the rail groove 28 of setting on the inner surface 24 and make guard shield 6 move to the front end 21 or the rear end 22 of housing 2.In the present embodiment, guard shield 6 has two slide rails that are parallel to each other 61.Guard shield 6 can be by switch triggering along front end 21 or rear end 22 direction slippages, thereby switch between open mode and closure state.In addition, guard shield 6 is made by transparent material, and when guard shield 6 was in closure state, the operator still can see through guard shield 6 see guidance panel like this.It should be noted that also to be provided with the projection 62 that is used for screens on the slide rail 61 that this can further disclose in the description of back.

The switch that is used to trigger guard shield 6 is a safety switch 7, and the effect of safety switch 7 is to keep the operating state of the switching of guard shield 6 and hay mover 1 synchronous.As shown in Figures 1 to 4, in the present embodiment, between end cap 5 and guard shield 6, has depressed part 25 on the housing 2 to lower recess.Safety switch 7 is positioned at the depressed part 25 of the outer surface 23 of housing 2.The bottom of depressed part 25 is a dividing plate 71.Among the embodiment of the present utility model, dividing plate 71 is the part of housing 2, and it has towards the outside of external environment with towards the inboard of hay mover 1 inside.Safety switch 7 promptly is positioned at the outside of dividing plate 71.In addition, safety switch 7 is plate shaped button, and the shape of safety switch 7 can be square or circle etc., and there is evident difference in the color of the color of safety switch 7 and housing 2.In the present embodiment, safety switch 7 is red, and housing 2 is a black.Safety switch 7 extends a pair of pivoted arm 711 towards a side of guard shield 6, has the axial projection 714 of extending along a rotating shaft 713 directions on each pivoted arm 711 respectively.The direction approximate horizontal of rotating shaft 713, and perpendicular to the front end 21 of housing 2, the line direction of rear end 22.Axial projection 714 is located on the support 29 of housing 2, makes whole safety switch 7 to rotate around axis 713.Be provided with the lead 26 between button and housing 2 in the depressed part 25 of housing 2, be with compressible elastic component 27 on the lead 26, an end of elastic component 27 abuts on the depressed part 25, and the other end abuts on the safety switch 7.27 pairs of safety switches 7 of elastic component play the elastic reset effect.During operation, the operator presses safety switch 7, and safety switch 7 is subjected to overcoming rotating shaft 713 rotations that form around axial projection 714 after the downward extruding, and elastic component 27 is further compressed with the storage elasticity restoring force.After safety switch 7 lifted restrictions, elastic component 27 supported safety switch 7 to get back to original position.In the present embodiment, elastic component 27 is a stage clip.

To shown in Figure 5, the safety switch system also has the positioning unit of attachment security switch 7 and guard shield 6, mainly comprises briquetting 72, rotating part 73, first support column 721, second support column 731, the 3rd support column 732 etc. as Fig. 3.Positioning unit is positioned at the inboard of dividing plate 71, and first support column 721 is provided with perpendicular to dividing plate 71, and first support column 721 is towards vertical direction extension and parallel with lead 26.In the present embodiment, an end of first support column 721 is shaped in 79 li of first fixtures of safety switch 7, and the fixedly connected pressure of the other end of first support column 721 determines 72.Common fixed forms such as fixed form can be one-body molded or screw thread is fixing.Simultaneously, also be provided with second support column 731 and three support column 732 parallel at safety switch 7 towards a side of pedestal with first support column 721.Similar with first support column 721, second support column, 731 1 ends are fixedlyed connected with second fixture 241 on the dividing plate 71, the fixedly connected rotating part 73 of the other end of second support column 731.Similarly, the 3rd support column 732 1 ends are fixedlyed connected with the 3rd fixture 242 on the dividing plate 71, fixedly connected another rotating part 73 of the other end.After the operator pressed button, button 713 rotated a very little angle around the shaft.Because angle is very little, so safety switch 7 can be regarded as along the bearing of trend of first support column 721 and moves down a segment distance.Also be arranged with elastic component on second support column 731 and the 3rd support column 732, as shown in this embodiment, elastic component is a wind spring 74, and wind spring 74 provides the elastic force that rotating part 73 is rotated around separately support column.

To shown in Figure 6,72 pairs of two rotating parts 73 of briquetting have position-limiting action as Fig. 3.In the present embodiment, briquetting 72 is arranged on first support column 721, and briquetting 72 is disc-shaped structure, the direction that extend perpendicular to first support column 721 on the plane at its disk place.Briquetting 72 is fixedlyed connected with first support column 721 and first fixture 79.Be provided with the locating part 75 of two symmetries simultaneously at briquetting 72 its circumferential edges, each locating part 75 is corresponding with rotating part 73 respectively, and promptly briquetting 72 is between two rotating parts 73.Certainly, briquetting 72 also can be other shapes.Locating part 75 is for radially protruding from the protrusion of circumferential edges.Rotating part 73 is roughly a rectangle, and perpendicular to first support column 721.One of them rotating part 73 has perforation can be for after second support column 731 pass, and can pivot around this second support column 731, and another rotating part 73 has after perforation can pass for the 3rd support column 732, and can pivot around the 3rd support column 732.Each rotating part 73 has the outside 734 towards the inboard 733 of briquetting 72 and inboard dorsad 733.On inboard 733, be provided with respectively the stopper slot 76 corresponding with the locating part 75 of briquetting 72.In the present embodiment, stopper slot 76 is the groove of step.Locating part 75 can be sticked in the stopper slot 76.When locating part 75 was sticked in the stopper slot 76, because the position-limiting action of locating part 75 and stopper slot 76, briquetting 72 kept stable relative static conditions with rotating part 73.When locating part 75 broke away from stopper slot 76, the restoring force that wind spring 74 provides made rotating part 73 rotate around second support column 731 or the 3rd support column 732.

As shown in Figure 5 and Figure 6, be provided with draw-in groove 77 in the outside 734 of rotating part 73.Draw-in groove 77 can cooperate clamping with the projection 62 on the slide rail 61.In the present embodiment, draw-in groove 77 is the 734 step breach that cave inward and form along the outside, and projection 62 is for being formed at the projection on the pivoted arm 711.Projection 62 selectively is contained in the breach to produce position-limiting action or to spin off in breach.Pressing the button the locating part 75 that makes briquetting 72 moves downward, when locating part 75 produces displacement and breaks away from stopper slot 76, under the effect of wind spring 74 in two rotating parts 73 one rotates around second support column 731, another rotates around the 3rd support column 732, and rotatory force promotes projection 62 and breaks away from the spacing of draw-in groove 77.In the present embodiment, a rotating part 73 rotates counterclockwise around second support column 731, and another rotating part 73 rotates counterclockwise around the 3rd support column 732.So under the effect of rotatory force, guard shield 6 and slide rail 61 thereof be along rail groove 28 slippages, thereby make guard shield 6 be transformed into open mode from closure state.The operator can operate guidance panel.Because the design of positioning units such as rotating part 73, briquetting 72 is in the inside of housing 2, the safety switch 7 that in the vertical direction is positioned on the housing 2 can cover in the positioning unit that is positioned at housing 2, be to be provided with dividing plate 71 between positioning unit and the safety switch that is exposed to external environment 7, thereby avoid positioning unit directly to contact, thereby the useful life of the positioning unit that prolongs with external environment.

To shown in Figure 8, also be provided with trigger switch 8 near the place of guard shields 6 as Fig. 5 at the inner surface 24 of housing 2.Trigger switch 8 is connected in the way circuit of hay mover 1 and the may command circuit disconnects or connect.Trigger switch 8 comprises triggering button 81 and switch enclosure 83.Switch enclosure 83 is pressed on the inner surface 24 by press strip 84.Have electric wire and circuit etc. in the switch enclosure 83, be provided with on the switch enclosure 83 and trigger lever 82.In the present embodiment, triggering button 81 and triggering lever 82 all between switch enclosure 83 and rotating part 73, trigger button 81 and electrically connect with switch enclosure 83.An end that triggers lever 82 contacts and forms pivotal point 85 with switch enclosure 83, and triggering lever 82 can turn an angle and has different positions around this pivotal point 85.Further, elastic component 89 is set on pivotal point 85, elastic component 89 provides restoring force to make the change in location that triggers lever 82.In the present embodiment, elastic component 89 is for having the elastic steel sheet of certain sag, and the one end is connected to the surface of switch enclosure 83, and the other end is connected with triggering lever 82.Certainly in other embodiments, elastic component 89 also can be arranged to disc spring.

The other end that triggers lever 82 is then with the contacts side surfaces of rotating part 73 and form first make contact 87.When rotating part 73 rotated, the side of rotating part 73 promoted to trigger lever 82 and rotates accordingly around pivotal point 85.In the present embodiment, trigger the contact site 88 that a end that lever 82 has first make contact 87 comprises arch, the side of rotating part 73 contact with the arch summit of contact site 88, keeps rotating part 73 and the triggering lever 82 better effects that contact like this.Simultaneously, trigger button 81 also with the two ends of triggering lever 82 between the zone, stage casing contact and form second contact point 86.Keep in touch with triggering button 81 at second contact point 86 owing to trigger lever 82, triggering lever 82 in pivotal point 85 rotating process, trigger lever 82 and can produce squeezing pressure triggering button 81.Therefore as shown in Figure 7 and Figure 8, first make contact 87 arrives the distance of pivotal point 85 greater than second contact point 86 to the distance of pivotal point 85, so first make contact 87 triggers the stroke of stroke greater than second trigger point 86 in trigger process, do not need too big triggering stroke so trigger button 81 settings own, to trigger button 81 not easy to wear in using thereby make, and improve useful life.The working condition of trigger switch 8 is as follows, when the projection 62 of guard shield 6 is engaged to the draw-in groove 77 of rotating part 73, thereby the sidewall of rotating part 73 rotates by 87 pairs of triggerings of first make contact lever, 82 generation pressure and makes triggering lever 82 around pivotal point 85 corresponding sports, in rotation process, trigger lever 82 and trigger button 81 by 86 extruding of second contact point.As shown in Figure 7, this moment, trigger switch 8 was in primary importance, made entire circuit be in conducting state, hay mover 1 operate as normal.When projection 62 breaks away from draw-in grooves 77, thereby producing to pivot, removes rotating part 73 triggering the pressure of lever 82, make and trigger lever 82 and lift and be not expressed to and trigger button 81.As shown in Figure 8, this moment, trigger switch 8 was in the second place, made entire circuit be in off-state, and hay mover 1 quits work and waits for and to restart.

The working condition of whole safety switch system is as follows, when safety switch 7 is in first state of not depressing, briquetting 72 engages with moving block 73, moving block 73 one side make guard shield 6 cover in guidance panel with projection 62 engagement connections of guard shield 6, moving block 73 extruding trigger switches 8 make circuit turn-on hay mover 1 be in the state of operate as normal on the other hand.When depressing safety switch 7 and make safety switch 7 be in second state, briquetting 72 engages with moving block 73 disengagings, moving block 73 rotates to break away from the projection 62 of guard shield 6 on the one hand and engages, guard shield 6 moves and does not cover in guidance panel, trigger switch 8 was upspring after moving block 73 rotated on the other hand, made circuit disconnect hay mover 1 and quit work.

Claims (10)

1. hay mover safety switch system, the trigger switch that comprises the connecting and disconnecting of the circuit of controlling hay mover, control the safety switch of described trigger switch closure/disconnection, it is characterized in that: described safety switch system also comprises respectively the triggering lever that contacts with described safety switch with described trigger switch, described triggering lever has pivotal point and can pivot around described pivotal point, and the first make contact of described safety switch and described triggering lever arrives the distance of described pivotal point greater than second contact point of described trigger switch and described triggering lever to the distance of described pivotal point.

2. hay mover safety switch according to claim 1 system, it is characterized in that: described pivotal point is positioned at an end of described triggering lever, described first make contact is positioned at the other end of described triggering lever, and described second contact point is between the two ends of described triggering lever.

3. hay mover safety switch according to claim 1 system, it is characterized in that: described pivotal point is provided with elastic component, for described triggering lever provides restoring force.

4. hay mover safety switch according to claim 1 system, it is characterized in that: described triggering lever has the contact site of arch, has described first make contact on the described contact site.

5. hay mover safety switch according to claim 1 system, it is characterized in that: described trigger switch has the triggering button, when described triggering lever was in the primary importance of the described triggering button of extruding, described triggering button was in the circuit turn-on of normal condition and described hay mover.

6. hay mover safety switch according to claim 5 system, it is characterized in that: when described triggering lever was in the second place of not pushing described triggering button, described triggering button was in the circuitry cuts of excited state and described hay mover.

7. hay mover safety switch according to claim 6 system, it is characterized in that: described triggering lever is subjected to the driving of described safety switch and switches between the described primary importance and the second place pivotally around described pivotal point.

8. hay mover safety switch according to claim 7 system, it is characterized in that: described safety switch system also has control panel, can be used for hiding the cover plate of described control panel, described cover plate is connected with described safety switch, when described safety switch was controlled described cover plate and hidden described control panel, described safety switch drove described triggering lever and is positioned at described primary importance.

9. hay mover safety switch according to claim 8 system is characterized in that: when described safety switch was controlled described cover plate and do not hidden described control panel, described safety switch drove described triggering lever and is positioned at the described second place.

10. hay mover safety switch according to claim 1 system, it is characterized in that: described trigger switch is fixed on the housing of hay mover by press strip.

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