CN201576577U - Switching mechanism of branch crusher - Google Patents

Abstract

Disclosed is a switching mechanism of a branch crusher. The branch crusher comprises a main body (1) consisting of an intermediate cover (11) and an upper cover (16) detachably arranged on the intermediate cover. The switching mechanism comprises an electromagnetic switch (20) disposed in the intermediate cover, an actuating part (22) fixedly connected to the upper cover and a trigger component (24), wherein the trigger component is connected between the actuating part and the electromagnetic switch. When the upper cover is installed on the intermediate cover, the actuating part is connected with the trigger component fittingly so as to lead the electromagnetic switch to be in a triggering state; and when the upper cover is separated from the intermediate, the actuating part is disconnected with the trigger component so as to lead the electromagnetic switch to be in a trigger disabling stage. Therefore, the branch crusher switch can be disconnected forcedly by aid of the trigger component arranged between the electromagnetic switch and the actuating part, and the switching mechanism is low in cost and reliable and safe in performance.

Description

The switching mechanism of chipper

Affiliated technical field

The utility model relates to a kind of switching mechanism of chipper.

Background technology

Chipper in the garden instrument is generally used for the gardens branch, and branch etc. shred.Such chipper comprises main part, is provided with top board at the top of main part, offers charging aperture for treating that the inside that broken branch, branch enter into main part shreds on top board.Wherein, the housing of main part can by loam cake, lower cover and be connected loam cake and lower cover between middle cover form, and motor, transmission component and cutting tool are installed in the middle cover, so, loam cake is generally by buckle and bolt etc., cover in being removably mounted on, like this, therefrom cover and pull down loam cake and promptly can expose cutting tool, transmission component and motor etc. so that to its maintenance or replacing.Therefore, bring personal injury for the button that prevents the mains switch of unexpected triggering machine when carrying out machine maintenance, the switching mechanism of existing chipper is a pressure disengaging of series connection switch in the circuit of power main switch (being generally electromagnetic switch) usually, the inserted sheet of this pressure disengaging switch is fixed on and covers, like this when loam cake disassembles, inserted sheet will be extracted in force switch, thereby cut off electromagnetic switch by force, make power main switch be in the operating state of disconnection all the time, guaranteed user's personal safety.Yet, because the cost that force to break away from switch than higher, makes the manufacturing cost of entire machine than higher.

Summary of the invention

In order to overcome the switching mechanism deficiency of existing chipper, the utility model provides a kind of switching mechanism of improved chipper, and it is with low cost, and structural behaviour is reliable.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of switching mechanism of chipper, described chipper comprises main part, described main part comprises middle cover and is removably mounted on the loam cake that covers in described, described switching mechanism comprises the actuating member that is installed in the electromagnetic switch in the described middle cover and is fixedly connected on described loam cake, it is characterized in that: described switching mechanism also comprises the triggering assembly, described triggering assembly is connected between described actuating member and the described electromagnetic switch, when described loam cake is mounted to when covering in described, described actuating member and the matched so that described electromagnetic switch of described triggering assembly are in the state that can trigger; When described loam cake and described middle cover were separated, described actuating member and described triggering assembly broke away from mutually so that described electromagnetic switch is in the state that can not trigger.

The beneficial effects of the utility model are, the switching mechanism of chipper triggers assembly and realized that the pressure of existing chipper breaks away from the function of switch by being provided with between electromagnetic switch and actuating member, and cost is cheaper, and such mechanism performance is reliable, safety.

Description of drawings

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

Fig. 1 is the stereogram corresponding to chipper of the present utility model.

Fig. 2 is the part stereogram of the main part of chipper among Fig. 1.

Fig. 3 is the three-dimensional exploded view of the switching mechanism of chipper among Fig. 1.

Fig. 4 is the partial view of the initial position that covers during the switching knob of the switching mechanism of Fig. 3 is in, and actuating member wherein is in rigging position.

Fig. 5 is the plan view in another orientation of Fig. 4.

Fig. 6 is the cutaway view of A-A line in Fig. 5.

Fig. 7 is the cutaway view of B-B line in Fig. 5.

Fig. 8 is the partial view of the start position that covers during the switching knob of the switching mechanism of Fig. 3 is in, and actuating member wherein is in rigging position.

Fig. 9 is the cutaway view corresponding to Fig. 8.

Figure 10 is the partial view of the stop position that covers during the switching knob of the switching mechanism of Fig. 8 is in, and actuating member wherein is in rigging position.

Figure 11 is the cutaway view corresponding to Figure 10.

Figure 12 is the partial view of the start position that covers during the switching knob of the switching mechanism of Fig. 3 is in, and actuating member wherein is in removed position.

Figure 13 is the plan view in another orientation of Figure 12.

Figure 14 is the cutaway view of C-C line in Figure 13.

Figure 15 is the cutaway view of D-D line in Figure 13.

Figure 16 is the cutaway view of E-E line in Figure 13.

Embodiment

With reference to Fig. 1, be a kind of quick chipper corresponding to most preferred embodiment of the present invention, be generally used for the gardens branch, branches etc. shred.Such chipper comprises main part 1, is provided with top board 12 at the top of main part 1, offers charging aperture 14 for treating that the inside that broken branch, branch enter into main part 1 shreds on top board 12.Main part 1 by loam cake 16, lower cover 18 and be connected loam cake 16 and lower cover 18 between middle cover 11 form, wherein loam cake 16 removably is fixed on the middle cover 11 by a pair of buckle 15 and bolt 17, and motor, transmission component and cutting tool all are arranged on the inboard (figure does not show) of this main part 1.Frame 13 that has a roller is installed in the below of main part 1 so that pushing away chipper and move ahead on the ground.

With reference to Fig. 2 and Fig. 3, above-mentioned chipper also is provided with switching mechanism 2, the triggering assembly 24 that this switching mechanism 2 comprises electromagnetic switch 20, connects the actuating member 22 on loam cake 16 and can trigger electromagnetic switch 20.

Above-mentioned electromagnetic switch 20 fixes in the draw-in groove 111 of middle cover 11 in the mode of general fixing, and it has two contacts, is respectively closing contact 21 and break contact 23.This electromagnetic switch 20 has two operating states, and one is to trigger operating state, and closing contact 21 can be triggered (depressing) and connect electromagnetic switch 20 at this moment; Another is to trigger operating state, and closing contact 21 can not be triggered (depressing) and disconnect electromagnetic switch 20 at this moment.

Above-mentioned actuating member 22 comprises the outward extending inserted sheet 224 of side of main part 222 and autonomous body 222.On main part 222, be provided with a pair of through hole 226, then with bolt 19 pass this to through hole 226 and with on the respective screws hole (figure do not show) that covers be meshed, thereby actuating member 22 is fixed on the loam cake 16.On inserted sheet 224, be provided with jack 228.

With further reference to Fig. 4 to Fig. 7, above-mentioned triggering assembly 24 comprise switching knob 26, with the matched connecting rod 28 of switching knob 26, driving lever 30 and the spill spin block 32 matched with connecting rod 28.Switching knob 26 can be rotatably set on the middle cover 11, and it has three positions with respect to middle cover 11, i.e. initial position " N ", start position " ON " and shutdown position " OFF ".This switching knob 26 has the projection 25 of downward extension, and middle cover 11 is provided with cannelure 27, is hollow posts 29 at the center of cannelure 27, and this projection 25 rotatably is housed in this hollow posts 29.In addition, a flexible member 31 is connected between projection 25 and the hollow posts 29, makes switching knob 26 can automatically revert to initial position N after rotation.Above-mentioned connecting rod 28 is roughly column, has the top 282 of hollow and the 282 bar portions 284 of extending downwards from the top, near forming a plurality of first tooth-like parts 286 on the outer ring at top 282, this first tooth-like part 286 has the field of conjugate action 287 of diagonally extending along the longitudinal in bar portion 284.The projection 25 of aforementioned knob 26 is passed the hollow posts 29 on the middle cover 11 and is fixedly connected with the top 282 of the connecting rod 28 that is positioned at middle cover 11 belows, can tighten by screw (figure does not show) usually.Above-mentioned driving lever 30 has main part 302 column and hollow, at second tooth-like part 304 of the upper end of main part 302 formation corresponding to the shape of first tooth-like part 286, this second tooth-like part 304 also has the face that is engaged 307 of diagonally extending along the longitudinal, and this is engaged face 307 can be matched with the field of conjugate action 287 of first tooth-like part 286.The place that is being close to second tooth-like part 304 on main part 302 forms outstanding annular shoulder 305 outside, and a pair of jacking block 306 that stretches out in the lower end of main part 302, this can contact with the closing contact 21 and the break contact 23 of above-mentioned electromagnetic switch 20 respectively to jacking block 306.The bar portion 284 of above-mentioned connecting rod 28 can pass the main part 302 of driving lever 30 and pass in the location hole 112 that is arranged on the middle cover 11 to position.Above-mentioned spill spin block 32 is rotatably installed in the middle cover 11 by bearing pin 36, it is irregularly shaped, has clamping part 35, first ejection part 37 and second ejection part 39, wherein form certain interval between first ejection part 37 and the clamping part 35, like this, when loam cake 16 is fixedly installed on the middle cover 11, the actuating member 22 that is connected on the loam cake 16 can pass the perforate 113 on the middle cover 11 and enter middle cover 11, and the clamping part 35 of above-mentioned spill spin block 32 inserts in the jack 228 of actuating member 22, and above-mentioned first ejection part 37 of front end 224 ejections of inserted sheet 22, make spill spin block 32 around bearing pin 36 and along arrow a to being rotated, like this, thereby second ejection part 39 of spill spin block 32 just can make driving lever 30 and connecting rod 28 closely cooperate along with the shoulder 305 of the above-mentioned driving lever 30 of rotation ejection.

Thus, when switching knob 26 was in initial position N, this moment, a pair of jacking block 306 of driving lever 30 separated with break contact 23 mutually with the closing contact 21 of electromagnetic switch 20, so electromagnetic switch 20 can not be triggered, and power supply is in the state of disconnection.With further reference to Fig. 8 to Fig. 9, when needs startup chipper carries out work, switching knob 26 is pushed start position " ON ", at this moment, along with the rotation of switching knob 26, fixedly connected with it connecting rod 28 and all can be along with rotation with connecting rod 28 close-fitting driving levers 30 makes one of them jacking block 306 on the driving lever 30 depress the closing contact 21 of electromagnetic switch 20, thereby connect electromagnetic switch 20, open machine; When trip switch knob 26, under the restoring force effect of flexible member 31, switching knob 26 can be got back to initial position N, the jacking block 306 of driving lever 30 can be separated with the closing contact 21 of electromagnetic switch 20, but because the self-characteristic of electromagnetic switch 20, electromagnetic switch 20 can kept the operating state of connecting, and machine continues operation; With further reference to Figure 10 to Figure 11, when needs are shut down, reverse rotation switch 26 knobs 26 are to shutdown position OFF, under the drive of rotary switch 26, another jacking block 306 of driving lever 30 can be depressed the break contact 23 of (triggering) electromagnetic switch 20, make electromagnetic switch 20 be in off-state, machine quits work; Equally, switching knob 26 can be under the restoring force effect of flexible member 31 and get back to initial position N, but electromagnetic switch 20 can continue keeping the operating state that disconnects.

With further reference to Figure 12 to Figure 16, need benly be, the switching mechanism of the utility model chipper, when loam cake 16 when middle cover 11 disassembles, the actuating member 22 that is fixedly connected on the loam cake 16 can be extracted in middle cover 11, the jack 228 interior spill spin blocks 32 that are buckled in actuating member 22 this moment can be along with extracting of actuating member 22 along the direction rotation opposite with above-mentioned arrow a, promptly rotate along arrow b, make second ejection part 39 on it break away from the shoulder 305 of driving levers 30, the end face 392 of second ejection part 39 directly presses against the break contact 23 of electromagnetic switch 20 simultaneously, thereby forces electromagnetic switch 20 outages.In this state, when unexpected toggle switch knob 26, connecting rod 28 is rotation thereupon, interaction because of the inclination between the field of conjugate action 287 of the face that is engaged 307 of driving lever 30 and connecting rod 28, connecting rod 28 can give 30 1 of driving levers along its axially and mutually away from component, like this, driving lever 30 can be with rotation together by connecting rod 28, thereby the jacking block 306 of driving lever 30 can not trigger the closing contact 21 of (depressing) electromagnetic switch 20 and make electromagnetic switch 20 be in the operating state that can not be triggered, can't realize the energising of electromagnetic switch 20, guarantee user's personal safety.So, switching mechanism of the present utility model, trigger the function that assembly 24 can be realized the pressure disengaging switch that existing chipper is set by being provided with between electromagnetic switch 20 and actuating member 22, cost is cheaper, and such switching mechanism dependable performance, safety.

Claims (10)

1. the switching mechanism of a chipper, described chipper comprises main part (1), described main part comprises middle cover (11) and is removably mounted on the loam cake (16) that covers in described, described switching mechanism comprises the actuating member (22) that is installed in the electromagnetic switch (20) in the described middle cover and is fixedly connected on described loam cake, it is characterized in that: described switching mechanism also comprises triggering assembly (24), described triggering assembly is connected between described actuating member (22) and the described electromagnetic switch (20), when described loam cake is mounted to when covering in described, described actuating member and the matched so that described electromagnetic switch of described triggering assembly are in the state that can trigger; When described loam cake and described middle cover were separated, described actuating member and described triggering assembly broke away from mutually so that described electromagnetic switch is in the state that can not trigger.

2. the switching mechanism of chipper according to claim 1 is characterized in that: described triggering assembly comprises the spill spin block (32) that is rotatably installed in the described middle cover, and described spill spin block can be matched with described actuating member.

3. the switching mechanism of chipper according to claim 2, it is characterized in that: described spill spin block comprises clamping part (35), and described actuating member is provided with jack (228), and described clamping part can be buckled in the described jack.

4. the switching mechanism of chipper according to claim 2, it is characterized in that: described spill spin block comprises first ejection part (37), but this first ejection part of described actuating member ejection.

5. the switching mechanism of chipper according to claim 2, it is characterized in that: described triggering assembly also comprises switching knob (26), but being arranged on of this switching knob knob covers in described.

6. the switching mechanism of chipper according to claim 5, it is characterized in that: a flexible member (31) is connected between described switching knob and the described middle cover.

7. the switching mechanism of chipper according to claim 5, it is characterized in that: described triggering assembly also comprises the connecting rod (28) that is fixedly connected with described switching knob, described connecting rod is provided with first tooth-like part (286), and this first tooth-like part has the field of conjugate action (287) that extends along the axioversion of described connecting rod.

8. the switching mechanism of chipper according to claim 7, it is characterized in that: described triggering assembly further comprises driving lever (30), this driving lever is set on the described connecting rod, and have second tooth-like part (304), this second tooth-like part have corresponding to and be coupled to the face that is engaged (307) of first tooth-like part.

9. the switching mechanism of chipper according to claim 8, it is characterized in that: described driving lever (30) also comprises a pair of jacking block (306), this can trigger the closing contact (21) and the break contact (23) of described electromagnetic switch (20) respectively to jacking block.

10. the switching mechanism of chipper according to claim 8 is characterized in that: described driving lever also is provided with outstanding shoulder (305) outside, and described spill spin block also is provided with second ejection part (39), but the described shoulder of the described second ejection part ejection.

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