CN105432238B - mower and safety device thereof - Google Patents

Abstract

The invention discloses a mower and a safety device thereof, wherein the safety device comprises: the safety key comprises a switch box, a locking assembly, an operating piece, a circuit switch and a safety key, wherein at least part of the safety key can be inserted into the slot and rotates relative to the switch box; the switch box is provided with a slot; the locking assembly comprises an engagement piece which can be controlled by the operating piece to trigger the circuit switch when the locking assembly is in a trigger position; the security key comprises: a pressing portion capable of pressing the link member to the trigger position after rotating a predetermined angle with respect to the switch case; the invention has the advantages that: the safety device is provided with a safety key which is not easy to replace and has better safety, and the mower with the safety device is provided; only certain security keys enable the user to operate the mower efficiently.

Description

Hay mover and its safety device

Technical field

The present invention relates to a kind of garden instrument, and in particular to a kind of hay mover and its safety device.

Background technology

Hay mover is also known as weeder, grass mower, lawn mower etc..Hay mover be it is a kind of for cutting the grass on a lawn, vegetation etc. Machine tool, it is made up of cutterhead, engine, road wheel, walking mechanism, blade, handrail, control section.Cutterhead is mounted in On road wheel, engine is housed on cutterhead, blade is housed on the output shaft of engine, blade is rotated in using the high speed of engine Speed aspect improves a lot, saves the activity duration of weeding workman, reduces substantial amounts of human resources.

Existing hay mover major part is the power-operated mower using electro-motor as power source.

Because hay mover is a kind of high-power instrument, so the requirement to its security is very high, it is however generally that, according to existing Some safety standards, hay mover is additionally provided with a safety device and realizes double guarantor except a main operation trigger for user's operation Danger, the safety device safety device is traditionally arranged to be key and corresponding keyhole, when key is to be inserted into keyhole, main behaviour Making trigger can not make hay mover work so as to ensure that using safe.

But in existing safety device, object of the key easily by others similar to its shape replaces, so safety Property performance cannot be guaranteed；Cost is increased if by increasing extra safeties while operating user becomes numerous It is trivial.

The content of the invention

Be to solve the deficiencies in the prior art, have it is an object of the invention to provide one kind be not easy to be substituted, security The safety device and the hay mover with the safety device safety device of preferable safety key.

In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：

A kind of safety device suitable for hay mover, including：Switch module and safety key,

Switch module includes：Switch enclosure, is arranged on the locked component in switch enclosure, an operation that can be user-operably Part, one at least has disconnection and the contactor for connecting two states；Safety key includes：One panel a, energy is relative The swingle of panel rotation；Switch enclosure is provided with the key slot inserted in the first direction for the swingle of safety key, swingle The shaft parallel of its relative panel rotation is in first direction during insertion key slot；Key slot is provided with one can make swingle exist Insertion phase counter plate rotates the guide part of predetermined angle in the first direction；Swingle is provided with an oppression department；Locked component bag Include：One can move along the first direction also can be with the convergence piece of the axis of rotation parallel to first direction；Convergence piece includes：One Can the portion's of being oppressed contact so that convergence piece is moved to the pressure-bearing portion of the first position on first direction, linking one is in convergence piece The operating parts is set to control the trigger unit of the contactor during first position in first direction；Operating parts at least can phase Switch enclosure is rotated by axle of the axis perpendicular to first direction, contactor includes a shift knob；Only at convergence piece When the first position of first direction, operating parts can be by contacting convergence piece so as to indirect control shift knob.

Further, safety key also includes：One locating dowel, switch enclosure is additionally provided with a positioning for locating dowel insertion Groove.

Further, being provided between swingle and panel makes swingle rotate the first biased element for resetting.

Further, locked component also includes：Can make that convergence piece resets away from its first position in the first direction Two biased elements.

Further, guide part includes a guide rail, and the oppression department of swingle includes that one at least partially embedded is led To the briquetting in track.

A kind of safety device suitable for hay mover, including：Switch module, switch module includes：Switch enclosure, is arranged on out Locked component in the box of pass, an operating parts that can be user-operably, one at least has disconnection and the electricity for connecting two states Way switch；Switch enclosure is provided with a slot；Locked component include one can be controlled by operating parts when in trigger position and then The convergence piece of triggers circuit switch；Safety device safety device also includes：One can at least partly insert slot and relative switch The safety key that box is rotated；Safety key includes：One can be oppressed after relative switch enclosure turns over predetermined angle convergence piece to touch Send out the oppression department of position.

Further, safety key includes：One panel, swingle of the energy with respect to panel rotation；Oppression department is set In swingle.

Or, safety key includes：One swingle, swingle is provided with oppression department.

Or, safety key includes：One panel and a swingle fixed thereto, oppression department are arranged at swingle.

A kind of hay mover, including：Main frame, operating handle；Main frame includes：Motor and power supply, its hay mover also include：Such as Preceding described safety device, switch enclosure is at least partially arranged at operating handle, and whether contactor control power supply is motor power supplying.

The present invention is advantageous in that：There is provided it is a kind of with being not easy to be substituted, the preferable safety key of security Safety device and the hay mover with the safety device safety device；Only particular safety key could make user to hay mover Operated effectively.

Brief description of the drawings

Fig. 1 is a preferred embodiment of hay mover of the present invention；

Fig. 2 is schematic diagram of the safety device when safety key is just inserted in hay mover shown in Fig. 1；

Fig. 3 is the schematic diagram of safety device shown in Fig. 2 when safety key is inserted into half；

Fig. 4 is the schematic diagram of safety device shown in Fig. 3 when safety key makes convergence piece be in trigger position；

Fig. 5 is the schematic diagram of safety key in embodiment illustrated in fig. 1；

Fig. 6 is the schematic diagram of another angle of safety key shown in Fig. 5；

Fig. 7 is the schematic cross-sectional view of safety key shown in Fig. 5；

Fig. 8 is the schematic diagram at embodiment illustrated in fig. 1 breaker in middle box slot；

Fig. 9 is contactor, convergence piece, the schematic diagram of operating parts in embodiment illustrated in fig. 1；

Figure 10 is the inside structure schematic diagram of embodiment illustrated in fig. 1 breaker in middle box upper box cover；

Figure 11 is the inside structure schematic diagram of embodiment illustrated in fig. 1 breaker in middle box lower casing；

Figure 12 is the structural representation of convergence piece in embodiment illustrated in fig. 1；

Figure 13 is to remove the structural representation after upper box cover in embodiment illustrated in fig. 1 at cross handle.

Specific embodiment

Make specific introduction to the present invention below in conjunction with the drawings and specific embodiments.

It is of the invention to include suitable for hay mover 100 referring to figs. 1 to shown in 9：Main frame 10, operating handle 20 and safety Device 30.

Wherein, main frame 10 includes：Motor（Not shown in figure）, power supply（Not shown in figure）And cutting tool（In figure It is not shown）.

Wherein, power supply makes its output shaft rotation for motor power supplying, and the output shaft of motor passes through corresponding transmission mechanism（In figure It is not shown）Cutting tool motion is driven to realize weeding operation.

Can control whether motor works by controlling the break-make of circuit between power supply and motor.

Operating handle 20 includes：The connecting rod 22 being connected with main frame 10 for the cross handle 21 being user-operably and by it.

Safety device 30, including：Switch module 31 and safety key 32.

Wherein, switch module 31 includes：Switch enclosure 33, locked component 34, operating parts 35, contactor 36.

Switch enclosure 33 can be grasped including one at least provided with a slot 331, locked component 34 when in trigger position Workpiece 35 control so that triggers circuit switch 36 convergence piece 341.

Safety key 32 can at least partly be inserted into slot 331, and this part inserted rotates relative to switch enclosure 33.

Safety key 32 is provided with an oppression department 321 in the part that can be rotated, and the oppression department 321 can be in relative switch enclosure 33 Convergence piece 341 to trigger position can be oppressed after turning over certain angle.

Major design design of the invention is not to be inserted directly into unblock using safety key 32, but makes safety key 32 act on convergence piece 341, and then convergence piece 341 is in the state for making the triggers circuit of operating parts 35 switch 36, so that real Now unlock.

And oppression department 321 in safety key 32 is made by the design to safety key 32 and the slot 331 of switch enclosure 33 This part can just act on convergence piece 341 after turning an angle, and other keys of non-invention design then can not possibly be real Now unlock.

Used as specific embodiment, shown in reference picture 5 to Fig. 7, safety key 32 includes：One panel 37, an energy Relative to the swingle 38 that panel 37 is rotated.

Preferably, swingle 38 is constituted to rotate with panel 37 and is connected by a screw 322, packing ring 323, in rotation The first biased element 324 for enabling swingle 38 to rotate reset is provided between bull stick 38 and panel 37, specifically first is inclined Pressure element 324 is a torque spring, and it orders about swingle 38 and a position for initial setting is reset in free state.

Switch enclosure 33 is provided with the slot 331 that A is inserted in the first direction of swingle 38 for safety key 32.

Make its A extension generally in a first direction, when swingle 38 is inserted slot 331, swingle when designing the slot 331 38 relative to panel 37 rotate shaft axis B parallel to first direction A.More specifically, swingle 38 inserts the portion of slot 331 It is divided into cylinder, swingle 38 is the axis of rotation of the cylinder relative to the axis B that panel 37 is rotated.Slot 331 is while structure It is a part for adaptable Column groove or Column groove to make, and so, slot 331 is inserted in swingle 38 When, the pivot center B of swingle 38 can be parallel to first direction A.

Slot 331 is provided with one can make swingle 38 rotate predetermined angle in the insertion phases of A in the first direction counter plate 37 Guide part 332.The effect of guide part 332 is to make swingle 38 be oriented to swingle 38 in insertion to rotate.

Preferably, guide part 332 includes a guide rail 333, the guide rail 333 is one section of track of hollow out.

Swingle 38 is provided with an oppression department 321；The oppression department 321 includes：One briquetting 321a, briquetting 321a is formed Radial direction in the end of the cylinder of swingle 38 and approximately along the cylinder protrudes from swingle 38.

When safety key 32 is inserted, briquetting 321a is embedded in guide rail 333, and guide rail 333 is one section of spiral Track, now with the insertion of swingle 38, guide rail 333 acts on briquetting 321a makes swingle 38 occur with respect to panel 37 Rotate, so that briquetting 321a goes to the position that can act on convergence piece 341.

Used as further preferred scheme, shown in reference picture 2 to Fig. 4 and Figure 10 to Figure 11, switch enclosure 33 includes：Upper box cover 301 and lower casing 302, they cover constitute the switch enclosure 33 with certain inner space up and down.Wherein, upper box cover 301 is provided with First structure portion 334, lower casing 302 is provided with the second structural portion 335, and they have corresponding curved wall and inclined side Edge, so that they surround a slot for relative closure 331 and constitute guide rail 333, the first knot by moving towards identical edge The structural portion 335 of structure portion 334 and second can be integrally formed by upper box cover 301 or lower casing 302, it is also possible to independent part structure Into the structural portion 335 of first structure portion 334 and second is respectively provided with an inwall for circular arc to constitute slot 331, first structure portion 334 and second being separated by a distance between structural portion 335 and they respectively constitute the two of guide rail 333 in edge in this place Side.

The effect of locked component 34 is to be unlocked when safety key 32 is inserted, and operating parts 35 is controlled contactor 36, when safety key 32 is extracted, operating parts 35 is controlled from being constituted to contactor 36, so that at lock-in circuit switch 36 In the state of setting.

Specifically, locked component 34 includes：One can in the first direction A movement also can be with parallel to first direction A's The convergence piece 341 of axis of rotation.

Convergence piece 341 can move the direction movement that can be also inserted along safety key 32 relative to switch enclosure 33 also can be with parallel The axis of the direction of insertion of safety key 32 is rotated for axle.

Specifically, convergence piece 341 includes：One can be oppressed portion 321 and contact so that convergence piece 341 is moved to first The pressure-bearing portion 341a of the first position on the A of direction, operation is made during a first position that first direction A is in convergence piece 341 Part 35 can control the trigger unit 341b of contactor 36.

More specifically, shown in reference picture 12, convergence piece 341 also includes：Cannula portion 341c and connecting portion 341d.Connecting portion 341d be located between cannula portion 341c and trigger unit 341b, make they constitute connection, cannula portion 341c be located at connecting portion 341d with Between pressure-bearing portion 341a, connecting portion 341d constitutes " C " character form structure, and this is easier to ensure its longevity while its is elastic in performance Life, while trigger unit 341b is also divided into two separate parts, so design can make its more preferable triggers circuit switch 36.Set Pipe portion 341c is a set of tubular construction, and a stopper slot 341e is formed with its sleeve pipe, itself and jack-post（Figure 12 is not shown）One it is convex Muscle coordinates the rotation amplitude that can limit convergence piece 341, certainly when the elasticity of connecting portion 341d is enough, it is also possible to make convergence piece 341 do not rotate completely.

Shown in reference picture 9 and Figure 13, operating parts 35 at least can be with respect to switch enclosure 33 with perpendicular to the axis B of first direction A For axle is rotated.User holds cross handle 21 and operating parts 35 during operation rotates operating parts 35.Contactor 36 is opened including one Close button 361；Only when convergence piece 341 is in the first position of first direction A, operating parts 35 can be by contacting convergence piece 341 So as to indirect control shift knob 361.

When safety key 32 is inserted, convergence piece 341 can just make its trigger unit 341b in a first direction on A in can be grasped Workpiece 35 and the position of the contact of contactor 36, operation ability starter motor is now carried out to operating parts 35 makes hay mover work, Otherwise（I.e. when safety key 32 is not inserted into）Convergence piece 341 is not on the first position of energy triggers circuit switch 36, this Even if when operation operating parts 35 also cannot starter motor, realize safety guarantee.

Preferably, locked component 34 also includes：Can make convergence piece 341 in the first direction A away from its first position And the second biased element 39 for resetting.When oppression department 321 no longer oppresses convergence piece 341, convergence piece 341 is in the second biased element Can be resetted in the presence of 39.

Preferably, when safety key 32 is inserted, because the rotation meeting counter plate 37 of swingle 38 produces torque, It is that panel 37 is rotated, in order to overcome the rotation of panel 37, safety key 32 also includes：One locating dowel 325, switch enclosure 33 also sets There is a locating slot 336 for the insertion of locating dowel 325, the locating dowel 325 is fixedly connected with panel 37, when it is inserted into switch enclosure When in 33 in locating slot 336, panel 37 can be made not rotate.

Can be using following several schemes for safety key of the invention（It is not shown in figures, refer to show The embodiment for going out）：

Safety key only includes swingle as described in previous embodiments, so in insertion, it is necessary to user coordinates The rotation of swingle.

Safety key includes：Panel and swingle, but swingle be to be fixedly connected with panel.When being thus inserted into Panel and swingle synchronous axial system, during to compressing convergence piece to first position, panel just turns to specified location.

In addition, guide rail could be arranged to make swingle first move along the first direction certain distance, user is then needed The orbital segment that another section of guiding guide post continues to move along the first direction in alignment guide track after certain angle is actively turned over, from And the effect to convergence piece is realized again.

The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent or equivalent transformation Technical scheme, all falls within protection scope of the present invention.

Claims (9)

1. a kind of safety device suitable for hay mover, including：Switch module and safety key, it is characterised in that the switch Component includes：

Switch enclosure,

The locked component in the switch enclosure is arranged on,

One operating parts that can be user-operably,

One at least has disconnection and the contactor for connecting two states；

The safety key includes：

One panel,

One can relatively described panel rotation swingle；

The switch enclosure is provided with the slot inserted in the first direction for the swingle of the safety key, and the swingle inserts institute The shaft parallel of its relatively described panel rotation is in the first direction when stating slot；The slot is provided with one can make the rotation The guide part of bull stick relatively described panel rotation predetermined angle when being inserted along the first direction；

The swingle is provided with an oppression department；

The locked component includes：One can be moved along the first direction and can be turned with the rotating shaft parallel to the first direction Dynamic convergence piece；

The convergence piece includes：

One can be contacted by the oppression department so that the convergence piece first position that is moved on the first direction is held Splenium,

The operating parts is set to control the triggering of the contactor during one first position that first direction is in convergence piece Portion；

The operating parts can at least be rotated relative to the switch enclosure by axle of the axis perpendicular to the first direction, the circuit Switch includes a shift knob；

Only when the convergence piece is in the first position of the first direction, the operating parts can be by contacting the convergence piece So as to shift knob described in indirect control.

2. the safety device suitable for hay mover according to claim 1, it is characterised in that the safety key is also wrapped Include：One locating dowel, the switch enclosure is additionally provided with a locating slot for the confession locating dowel insertion.

3. the safety device suitable for hay mover according to claim 1, it is characterised in that the swingle and the face Being provided between plate makes the swingle rotate the first biased element for resetting.

4. the safety device suitable for hay mover according to claim 1, it is characterised in that the locked component is also wrapped Include：The second biased element that the convergence piece can be made to be resetted away from first position its described along the first direction.

5. the safety device suitable for hay mover according to claim 1, it is characterised in that the guide part includes Guide rail, the oppression department of the swingle includes the briquetting in an at least partially embedded guide rail.

6. a kind of safety device suitable for hay mover, including：Switch module, it is characterised in that the switch module includes：

Switch enclosure,

The locked component in the switch enclosure is arranged on,

One operating parts that can be user-operably,

One at least has disconnection and the contactor for connecting two states；

The switch enclosure is provided with a slot；

The locked component includes that one by the operating parts can be controlled and then be triggered the circuit to open when in trigger position The convergence piece of pass；

The safety device also includes：One can at least partly insert the slot and the security key rotated relative to the switch enclosure Spoon；

The safety key includes：One can oppress the convergence piece to described after relatively described switch enclosure turns over predetermined angle The oppression department of trigger position;

The safety key includes：One swingle, the swingle is provided with the oppression department；

The swingle of the safety key inserts the slot, the pressure when swingle inserts the slot in the first direction The shaft parallel that urgent portion is rotated relative to the switch enclosure is in the first direction；The slot is provided with one can make the swingle Make the oppression department that the guide part of predetermined angle is rotated relative to the switch enclosure when being inserted along the first direction.

7. the safety device suitable for hay mover according to claim 6, it is characterised in that the safety key includes：

One panel and one can relatively described panel rotation the swingle.

8. the safety device suitable for hay mover according to claim 6, it is characterised in that the safety key includes： One panel and a swingle fixed thereto.

9. a kind of hay mover, including：Main frame, operating handle；The main frame includes：Motor and power supply, it is characterised in that described to cut Careless machine also includes：Safety device as described in claim 1 to claim 8 any one, the switch enclosure at least partly sets The operating handle is placed in, the contactor controls whether the power supply is the motor power supplying.