CN201286243Y

CN201286243Y - Garden instrument

Info

Publication number: CN201286243Y
Application number: CNU2008201865244U
Authority: CN
Inventors: 张天才
Original assignee: SUZHOU LEVAC ELECTRIC APPLIANCE CO Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2008-10-23
Filing date: 2008-10-23
Publication date: 2009-08-12
Anticipated expiration: 2018-10-23

Abstract

The utility model relates to a garden instrument which comprises a casing (1), a working part (5) arranged below the casing (1), a locking part (7) used for fixedly connecting the working part (5) on the casing (1), and a power switch (312); the garden implement is characterized in that the garden instrument is further provided with a safety switch (4) and a triggering device (9) of the safety switch (4); the safety switch (4) is arranged in the casing (1) and connected in series with the power switch (312); the triggering device (9) is matched and connected with the locking part (7); when the working part (5) is fixedly connected with the casing (1), the triggering device (9) triggers the safety switch (4) and causes the safety switch to be in a conductive state; and when the working part and the casing (1) are loosened or detached, the triggering device (9) is separated from the safety switch (4) and causes the safety switch to be in a disconnect state.

Description

Garden instrument

Affiliated technical field

The utility model relates to a kind of garden instrument.

Background technology

At present, various garden instruments have appearred on the market, as mower, grass rake mechine and a kind ofly not only can harrow grass but also can carry out ploughing-raking machine that the earth pine ploughs etc.During this class tool work, normally utilize the rotation of workpiece, carry out operation, and this class instrument has been equipped with a kind of workpiece usually incessantly because of need of work, like this, the user is sometimes according to using needs to change workpiece.When the user changes workpiece, may occur situation not in place being installed because of workpiece; Perhaps along with the use of instrument, workpiece assembles loosening situation, so easy initiation security incident.

In existing garden instrument, the locking caution of a kind of workpiece assembling mechanism is arranged, be the colored indicating arm of an extended casing, the top of indicating arm is one section red part, the lower end of red part is a green portion.During the installment work parts, because the action of gravity indicating arm can fall into casing, and when workpiece had been installed, indicating arm can be by jack-up.If it is not in place that workpiece is installed, indicating arm has only red part to stretch out casing, has only when workpiece to be in place, and the green portion of indicating arm just can be stretched out casing.The weak point of this class mechanism is: when user's installment work parts, if the state of indicating arm not to be noted, perhaps the indicating arm color comes off, indicating arm covered by foreign matter, then can occur making to produce potential safety hazard in use because of can't correctly checking the installation situation of workpiece.

Summary of the invention

In order to overcome above-mentioned deficiency, the utility model provides a kind of garden instrument with switch safety flip flop equipment.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of garden instrument comprises: casing; Workpiece, it is arranged on the below of described casing; Locking member is in order to be fixedly attached to described workpiece on the described casing; And power switch, it is characterized in that:

This garden instrument also is provided with the flip flop equipment of safety switch and described safety switch,

Described safety switch is arranged in the described casing and with described power switch and is connected in series mutually, and described safety switch has first duty and second duty;

Described flip flop equipment and described locking member are matched, and when described workpiece and described casing were fixedly connected, described flip flop equipment triggers described safety switch made described safety switch be in first duty; Loosening mutually or when breaking away from, described flip flop equipment and described safety switch are separated from each other and make described safety switch be in second duty when described workpiece and described casing.

The beneficial effects of the utility model are, garden instrument is by being provided with the security performance that a safety switch and flip flop equipment thereof can satisfy existing garden instrument, and it is simple in structure, and is with low cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the stereogram corresponding to the garden instrument of first embodiment of the present utility model.

Fig. 2 is the vertical view that garden instrument is partly analysed and observe shown in Fig. 1.

Fig. 3 is the electrical schematic of garden instrument shown in Fig. 1.

Fig. 4 is the cutaway view of garden instrument shown in Fig. 2 along A-A line.

Fig. 5 is the cutaway view of garden instrument shown in Fig. 2 along B-B line.

Fig. 6 is the stereogram of safety switch shown in Fig. 5.

Fig. 7 is the assembling schematic diagram of base portion shown in Fig. 4 and fixture

Fig. 8 is the stereogram of ejector shown in Fig. 4.

Fig. 9 is the stereogram of locking member shown in Fig. 4.

Figure 10 is the stereogram of fixture shown in Fig. 4

Figure 11 is the partial enlarged drawing that the safety switch of garden instrument shown in Fig. 4 triggers.

Figure 12 is the partial enlarged drawing that the safety switch of garden instrument shown in Fig. 4 does not trigger.

Among the figure: 1. 72. fixtures, 721. first installing holes, 722. second installing holes, 723. bridge openings, 712. ejections surface, casing 11. motors, 12. transmission mechanism 121. square openings, 13. locating dowel 131. newels, 2. cap 3. handspikes, 31. switch enclosure 311. grooves, 312. power switch 4. safety switches, 41. trigger button 5. workpieces, 51. line shaft 511. drive ends, 512. driven end 513. bearings, 52. rake 63. half slots, 64. nuts, 7. locking members, 71. locking members, 710. knobs, 711. threaded portions, pin 6. base portions, 61. accepting holes, 62. bridge joint holes, 724. grass guards, 8. bearing pins, 9. flip flop equipments, 91. ejectors, 910. main parts, 911. action face 912. trigger surperficial 913. butting sections 93. flexible members

Embodiment

See figures.1.and.2 the vertical view of analysing and observe corresponding to the stereogram and the part of the garden instrument of first embodiment of the present utility model.This garden instrument is a kind of grass rake mechine in the present embodiment.This grass rake mechine comprises: casing 1, be formed on cavity on the casing 1 (figure does not show), cover cap 2 on the cavity, be installed in the workpiece 5 in the casing 1 and be fixedly installed on handspike 3 on the casing 1.The safety switch 4 that in the cavity that casing 1 top forms, is provided with motor 11 and electrically connects mutually with this motor 11.Handspike 3 is provided with switch enclosure 31, is fastened in this groove 311 and exposes on the switch enclosure 31 forming power switch 312 that 311, one of grooves have common shape on the switch enclosure 31.Power switch 312 serial connections are gone in the control circuit of this garden instrument.With reference to Fig. 3, safety switch 4 series connection are gone in the electric power loop of power switch 312 and motor 11 formation, and when safety switch 4 disconnected, this electric power loop also disconnected.With reference to Fig. 6, safety switch 4 has outstanding trigger button 41 outside, and has first duty and second duty.When power switch 312 was in conducting state, safety switch 4 was under first duty, and its trigger button 41 is pressed, the electric power loop conducting, and motor 11 promptly is activated and drives workpiece 5 and is rotated operation; And under second duty, when its trigger button 41 returned to reset condition, the power supply of motor 11 was disconnected and makes workpiece 5 be in the state of quitting work.

With reference to Fig. 4 and Fig. 5, accommodated workpiece 5 in the unlimited shell chamber that casing 1 bottom forms, Yi Bian and be provided with transmission mechanism 12 in that the shell chamber of casing 1 is inboard, another side is provided with base portion 6.Transmission mechanism 12 is connected (figure does not show) by driving-belt with motor 11 power.Casing 1 inboard is stretched out the reference column 13 and the newel 131 of annular downwards, and the two is positioned at the top of base portion 6, and newel 131 is shorter than reference column 13 in the inside of reference column 13.Workpiece 5 comprises a line shaft 51 and several rake pins 52, and this line shaft 51 has drive end 511 and driven end 512 two ends.Drive end 511 is a square axle, and it can insert in the square opening 121 on the transmission mechanism 12.When workpiece 5 was installed in the casing 1, it can drive running work by motor 11 by transmission mechanism 12.Driven end 512 has been installed a bearing 513.

With further reference to Fig. 7, base portion 6 is arranged on the inside below of casing 1, with respect to the opposite side of transmission mechanism 12, with the cavity that holds described safety switch 4 on the described casing 1 can be one.Base portion 6 is provided with accepting hole 61, this accepting hole 61 be positioned at reference column 13 under; Side-lower at base portion 6 also is provided with two bridge joint holes 62; Between accepting hole 61 and bridge joint hole 62, the bottom of base portion 6, be provided with the half slot 63 that upwards arches upward; Nut 64 is fixedly installed in the accepting hole 61.

With further reference to Fig. 8, this grass rake mechine also is provided with the flip flop equipment 9 of locking member 7 and safety switch 4.

Flip flop equipment 9 is housed in the accepting hole 61 of base portion 6, comprises ejector 91 and flexible member 93.

The main part 910 of described ejector 91 is roughly cylindrical, and can stretch in the reference column 13 of casing 1, action face 911 is arranged at the bottom of this main part 910, and side has the triggering surface 912 of extending towards the direction of safety switch 4 settings, and its upper end also is provided with butting section 913.Triggering surface 912 is a plane, may extend to the below of safety switch 4, contacts with the trigger button 41 of described safety switch 4.Butting section 913 is cylindrical, and is thinner than main part 910, can stretch in the newel 131 of casing 1.Flexible member 93 is a compression spring, is arranged in the reference column 13, is enclosed within newel 131 outsides.Insert in the newel 131 butting section 913 of ejector 91, and the two ends that make flexible member 93 are respectively against the main part 910 of casing 1 with ejector 91.Because assembly relation, described flexible member 93 is in the elastic recovery state all the time.

Locking member 7 comprises locking member 71 and fixture 72, and it cooperates with base portion 6, the driven end 512 of workpiece 5 can be fixedly installed in the casing 1.

With reference to Fig. 9 and Figure 10, locking member 71 is made up of knob 710 and threaded portion 711.It is "T"-shaped that knob 710 roughly is, and so conveniently locking member 71 is rotated.Threaded portion 711 is a double-screw bolt, and its top has ejection surface 712, and this ejection surface 712 can lean with the action face 911 of ejector 91.It is one arch-shaped that fixture 72 is substantially, and the one end is provided with first installing hole 721, and the other end is provided with second installing hole 722, and the two is vertical mutually.Form semicircular bridge opening 723 between first installing hole 721 and second installing hole 722, the opening in this bridge opening 723 is consistent with the openings of sizes of the half slot 63 of base portion 6.Bearing pin 8 passes the bridge joint hole 62 of base portion 6, first installing hole 721 of fixture 72, makes fixture 72 and base portion 6 pivotally connected.Second installing hole 722 of fixture 72 can be passed in the threaded portion 711 of locking member 71, is meshed with nut 64 in the accepting hole 61 that is fixedly installed on base portion 6, and fixture 72 is connected to base portion 6.At this moment, half slot 63 forms a circular port with bridge opening 723, and the bearing 513 on the driven end 512 can be installed in the above-mentioned circular port.

Fixture 72 also is provided with grass guard 724 on bridge opening 723, the circular port that this grass guard 724 and half slot 63 and bridge opening 723 form is wedging mutually.When workpiece 5 is reliably installed, when grass rake mechine was started working, this grass guard 724 can prevent that broken grass from flying into or be involved in the bearing 513.

With reference to Figure 11 and Figure 12, when locking member 71 screws in nuts 64 up to leaning with ejector 91, when ejector 91 triggered safety switches 4, these safety switch 4 conductings were in first duty; When locking member 71 and ejector 91 are separated, when pushing away a part 91 and being pushed away safety switch 4 by flexible member 93, this safety switch 4 disconnects, and is in second duty.

In case locking member 71 became flexible with the cooperating mutually of nut 64 that is embedded in base portion 6, perhaps locking member 92 unloads and the fixture 72 that will be connected on the casing 1 is outwarded winding from nut 64, so that when workpiece 5 is changed, even because carelessness, press button 312 is in the duty of conducting all the time, because the ejection of locking member 71 surface 712 is separated from each other with the action face 911 of ejector 91, make ejector 91 be pushed away safety switch 4 by flexible member 93, at this moment, the trigger button 41 of safety switch 4 also returns back to reset condition, safety switch 4 is in second duty, and motor 11 shuts down, and makes workpiece 5 be in the state of quitting work.Therefore, in this way, only the base portion 6 at casing 1 is intact with fixture 7 installations, under the situation that locking member 71 and ejector 91 lean, safety switch 4 just has the possibility that is triggered, thereby has avoided being triggered the potential safety hazard of bringing by accident because of safety switch 4.

Claims

1. garden instrument comprises:

Casing (1);

Workpiece (5), it is arranged on the below of described casing (1);

Locking member (7) is in order to be fixedly attached to described workpiece (5) on the described casing (1); And

Power switch (312),

It is characterized in that:

This garden instrument also is provided with the flip flop equipment (9) of safety switch (4) and described safety switch (4),

Described safety switch (4) is arranged in the described casing (1) and with described power switch (312) and is connected in series mutually, and described safety switch (4) has first duty and second duty;

Described flip flop equipment (9) and described locking member (7) are matched, and when described workpiece (5) and described casing (1) when being fixedly connected, described flip flop equipment (9) triggers described safety switch (4) makes described safety switch be in first duty; Loosening mutually or when breaking away from, described flip flop equipment (9) is separated from each other with described safety switch (4) and makes described safety switch be in second duty when described workpiece and described casing (1).

2. garden instrument as claimed in claim 1 is characterized in that: described flip flop equipment (9) comprises ejector (91), and described ejector (91) is provided with between described safety switch (4) and the described locking member (7).

3. garden instrument as claimed in claim 2 is characterized in that: described ejector (91) comprises action face (911), and described locking member (7) comprises locking member (71), described action face (911) and described locking member (71) mutually against.

4. garden instrument as claimed in claim 2 is characterized in that: described ejector (91) comprises triggering surface (912), and described triggering surface (912) is arranged on the below of described safety switch (4), in order to trigger described safety switch (4).

5. garden instrument as claimed in claim 2, it is characterized in that: described flip flop equipment (9) comprises flexible member (93), described casing (1) has the reference column (13) that stretches out downwards, this flexible member (93) is contained in the described reference column (13), and its two ends abut against described casing (1) and described ejector (91) respectively.

6. garden instrument as claimed in claim 3, it is characterized in that: described locking member (7) also comprises fixture (72), described casing (1) comprises base portion (6), and described fixture (72) is connected and accommodates jointly the end of the line shaft (51) of described workpiece (5) with described base portion (6) phase pivot.

7. garden instrument as claimed in claim 6 is characterized in that: described locking member (71) is provided with threaded portion (711), described threaded portion (711) and described fixture (72) and described base portion (6) mutually screw-threaded engagement to lock described workpiece (5).