CN201119317Y

CN201119317Y - Double-push button control gear of mechanical brake pruner

Info

Publication number: CN201119317Y
Application number: CNU2007201925378U
Authority: CN
Inventors: 叶晓波
Original assignee: 叶晓波
Current assignee: Ningbo Daye Garden Equipment Co Ltd
Priority date: 2007-11-23
Filing date: 2007-11-23
Publication date: 2008-09-24
Anticipated expiration: 2017-11-23

Abstract

A double button control mechanism of a mechanical brake pruning machine aims at avoiding injuries caused by accidentally touching a cutting blade in high velocity. The mechanism comprises a housing case, a front button and a rear button, a motor component, a braking block and a top rod, wherein the top rod is in steel cable connection with the rear button via a liked action of a top rod supporting board, a positioning board, a top rod return spring and a supporting board return spring, simultaneously the top rod is connected with the front button via the liked action of the front button, a bridge plate, a steel wire and a bridge plate return spring, when both the front button and the rear button are released, or the front button is released while the rear button is pushed, or the front button is pushed while the rear button is released, the switch can not be touched even moving the top rod upward, and then the motor can not start, only when both the front button and the rear button are pushed, the motor is turned on to lead the cutting blade moves, and at that time two hands are unlikely to touch the moving cutting blade, thereby physical security is guaranteed. Further the top rod moves downward to touch the braking block at the lower end for braking, and the blade stops moving in one second. The double button control mechanism of a mechanical brake pruning machine has simple structure, reliability and stability, low producing cost, safe and labor-saving operation.

Description

Machinery Brake Prune Machine Dual-Button Controlling Organization

Technical field

The utility model relates to the double-button controlling organization of mechanical brake in a kind of pruner, especially pruner that is used for place pollards such as garden, park.

Background technology

Pruner is widely used in place pollards such as garden, park, for people build a clean and tidy green living environment, but the blade that the personnel that must prevent to handle shrub and hedge trimmer touch high-speed motion because of accident causes contingency, therefore, the controlling organization of shrub and hedge trimmer must be stable and reliable for performance, guarantees personal safety.The pruner of prior art adopts double-button control equally, and adopts two flexible axles controls or the mode by the multi-grade lever principle to realize, all exists complex structure, unstable properties, cost height, handles the defective of effort.

Summary of the invention

Technical problem to be solved in the utility model is intended to overcome the defective of prior art and a kind of Machinery Brake Prune Machine Dual-Button Controlling Organization of simple in structure, stable and reliable for performance, rapid operation safety is provided.

Technical problem of the present utility model solves by following technical scheme:

A kind of Machinery Brake Prune Machine Dual-Button Controlling Organization, it comprises casing, be provided with the electric machine assembly that drives blade movement in the casing, the starter motor assembly be switch trigger on the switch, it is touched by the push rod cap on the push rod that is located on fixed mount and the center bearing bracket opens, described push rod lower end is provided with the brake block of brake blade motion, push rod by first link gear through wirerope connect be located at shank after button; Button before connecting by second link gear again, it is characterized in that described first link gear comprises and the fixing push rod supporting plate of push rod, this push rod supporting plate has a supporting plate groove, the supporting plate groove is enclosed within on the location-plate, the push rod supporting plate along location-plate be free to slide and drive with its fixing push rod corresponding on, move down, reset by the push rod back-moving spring that is located between fixed mount and the push rod supporting plate, the wirerope two ends that are connected with push rod snap onto respectively on back button and the push rod supporting plate by the wirerope pull head, be located at the supporting plate back-moving spring between fixed mount and the push rod supporting plate, back button rotates around back button fulcrum; Described second link gear comprises bridge plate and the steel wire that is connected one with preceding button, and steel wire one end of crank-like connects bridge plate, and the other end is located under the push rod supporting plate, and the two ends of bridge plate back-moving spring connect casing and bridge plate respectively, and bridge plate rotates around the bridge plate fulcrum.

Described wirerope is fixed by the flexible axle pressing plate, and wirerope is with the wirerope sleeve pipe outward.

Compared with prior art, the utility model will adopt first link gear and second link gear of two architecture advances between the push rod of touch switch and the forward and backward button, the intermediate link that realizes function is simplified, so structure is simple relatively, and have advantages such as reliable in structure is stable, low cost of manufacture, rapid operation safety.

Description of drawings

Front view when Fig. 1 all discharges with the back button for button before the utility model.

Stereogram when Fig. 2 all discharges with the back button for button before the utility model.

Fig. 3 is button release before the utility model, the stereogram when the back button is closed.

Fig. 4 is button closure before the utility model, the stereogram when the back button discharges.

Fig. 5 is the stereogram when button is with the equal closure of back button before the utility model.

Fig. 6 is the annexation figure of the utility model push rod and bridge plate, steel wire.

Embodiment

To elaborate again by the embodiment of above-mentioned accompanying drawing below to the utility model.

As Fig. 1～shown in Figure 6, button fulcrum behind the 1-, button behind the 2-, 3-flexible axle pressing plate, 4-wirerope pull head, the 5-wirerope, 6-fixed mount, 7-steel wire, 8-electric machine assembly, 9-bridge plate back-moving spring, button before the 10-, 11-carriage, 12-bridge plate, 13-bridge plate fulcrum, 14-brake block, the 15-push rod, 16-center bearing bracket, 17-wirerope sleeve pipe, 18-casing, 19-supporting plate groove, 20-switch trigger, 21-switch, 22-push rod cap, 23-supporting plate back-moving spring, 24-location-plate, 25-push rod supporting plate, 26-push rod back-moving spring.

Machinery Brake Prune Machine Dual-Button Controlling Organization, comprise by the involutory casing of forming 18 that is fastenedly connected with screw of two halves housing, the indoor electric machine assembly 8 that drives blade movement that is provided with of chassis chamber, this electric machine assembly is touched by the switch trigger 20 on the switch 21 and is opened, the touch switch trigger is opened is provided in a side of push rod cap 22 on the push rod 15 on fixed mount 6 and the center bearing bracket 16, and push rod connects the back button 2 that is located at shank by first link gear.First link gear that connects push rod and back button includes a top board supporting plate 25, this top board supporting plate has an opening-like supporting plate groove 19, the supporting plate groove is enclosed within on the location-plate 24 with the casing disjunctor and on location-plate, under be free to slide, and drive and push rod supporting plate 25 fixing push rods 15 do corresponding on, move down, the push rod back-moving spring 26 that push rod is resetted is located between fixed mount 6 and the push rod supporting plate 25, be located between fixed mount and the push rod supporting plate supporting plate back-moving spring 23 is arranged, the push rod top connects wirerope 5, wirerope is with wirerope sleeve pipe 17 outward, fixing by flexible axle pressing plate 3, the one end snaps onto on the push rod supporting plate 25 by wirerope pull head 4, its other end snaps onto the free end of back button 2 by wirerope pull head 4, if back button 2 closures, tension wirerope 5, wirerope then drives push rod supporting plate 25 and moves up, the push rod supporting plate drives push rod 15 again and moves up, this moment, push rod cap 22 was near switch triggers 20, but do not touch, back button when closure or released movement after button fulcrum 1 be center of rotation.The lower end of push rod 15 is provided with the brake block 14 of brake blade motion, so push rod 15 if move down, then makes switch 21 disconnect, the lower end was touched brake block 14 and started braking mechanism when push rod moved down simultaneously, made blade stop motion in 1 second.When discharging back button 2, the elastic force of supporting plate back-moving spring 23 makes push rod supporting plate 25 reset, and the push rod supporting plate drives wirerope 5 and moves down simultaneously, and wirerope then hauls back button 2 and resets and discharge.

Button 10 before push rod 15 connects by second link gear again simultaneously, second link gear that connects push rod and preceding button comprises bridge plate 12 and the steel wire 7 that is connected one with preceding button 10, steel wire one end connects bridge plate, the other end is located at the push rod supporting plate 25 times, the preceding button that connects one, bridge plate and steel wire can rotate around bridge plate fulcrum 13, button and bridge plate before the two ends of bridge plate back-moving spring 9 connect respectively, the invar silk is crank-like, so the steel wire rotation also can drive the push rod supporting plate and slide along location-plate, at the same time before the operation, when back button was closed, ability touch switch trigger made the machine startup operation, preceding button 10 is the shade shape, along carriage 11 push action.

Further understand concrete structure of the present utility model by the description of dynamic structure more below:

As shown in Figure 2, when current button 10 and back button 2 all were in release conditions, push rod cap 22 was away from switch trigger 20, and this moment, machine did not start; Current button discharges, when back button 2 is closed, as shown in Figure 3, back button 2 pull-up wireropes 5, wirerope 5 pull-ups push rod supporting plate 25, this moment, the supporting plate back-moving spring 23 was compressed, push rod cap 22 is near switch trigger 20, but do not touch, machine does not start at this moment; Current button closure, back button 2 are when being in release conditions, as shown in Figure 4, bridge plate back-moving spring 9 is compressed at this moment, steel wire 7 is along with bridge plate 12 rotates around bridge plate fulcrum 13, steel wire lifts push rod supporting plate 25, and push rod supporting plate 25 drives on the push rod 15 and moves, and push rod cap 22 is near switch trigger 20, but do not touch, this moment, machine did not start yet; When current button 10 and back button 2 are all closed, as shown in Figure 5, they drive push rod supporting plate 25 and move on the whole, and at this moment, push rod back-moving spring 26 and supporting plate back-moving spring 23 all are compressed, move on the push rod 15, push rod cap 22 has touched switch trigger 20, the machine entry into service, and operating personnel's both hands all ride on the button of front and back at this moment, can not touch the blade of high-speed motion, thereby guarantee personal safety.

When wanting to convert to when shutting down from open state (as Fig. 5), can discharge back button 2 (as Fig. 4), at this moment, supporting plate back-moving spring 23 opens, driving push rod supporting plate 25 moves down, push rod back-moving spring 26 opens simultaneously, drives push rod 15 and moves down, and push rod cap 22 has just broken away from switch trigger 20 like this, machine has stopped running, brake block 14 has been touched in push rod 15 lower ends simultaneously, the blade of motion was stopped in 1 second, thereby guaranteed personal safety; If button 10 (as Fig. 3) before discharging again, under the elastic force effect of bridge plate back-moving spring 9, steel wire 7 is along with bridge plate 12 rotates around bridge plate fulcrum 13, under the elastic force effect of push rod back-moving spring 26, push rod supporting plate 25 and push rod 15 are along with moving down, and push rod cap 22 just breaks away from switch trigger 20, and machine shuts down, brake block 14 is touched in push rod 15 lower ends simultaneously, and blade is checked very soon; If preceding button 10 and back button 2 discharge (as Fig. 2) simultaneously, then push rod supporting plate 25 two ends lose support force simultaneously, under the elastic force effect of push rod back-moving spring 26 and supporting plate back-moving spring 23, push rod supporting plate 25 moves down, push rod 15 is along with moving down, thereby machine is shut down, and blade is checked very soon.More than several situations all satisfied and discharged any one button, all can make the requirement that machine shuts down, blade is checked, thereby guarantee personal safety.

Claims

1, a kind of Machinery Brake Prune Machine Dual-Button Controlling Organization, it comprises casing (18), be provided with the electric machine assembly (8) that drives blade movement in the casing, the starter motor assembly be switch trigger (20) on the switch (21), it is touched by the push rod cap (22) on the push rod (15) that is located on fixed mount (6) and the center bearing bracket (16) opens, described push rod (15) lower end is provided with the brake block (14) of brake blade motion, push rod by first link gear through wirerope (5) connection be located at shank after button (2); Button (10) before connecting by second link gear again, it is characterized in that described first link gear comprises and the fixing push rod supporting plate (25) of push rod (15), this push rod supporting plate has a supporting plate groove (19), the supporting plate groove is enclosed within on the location-plate (24), the push rod supporting plate along location-plate be free to slide and drive with its fixing push rod (15) corresponding on, move down, reset by the push rod back-moving spring (26) that is located between fixed mount and the push rod supporting plate, the wirerope that is connected with push rod (5) two ends snap onto respectively on back button (2) and the push rod supporting plate (25) by wirerope pull head (4), be located at the supporting plate back-moving spring (23) between fixed mount and the push rod supporting plate, back button rotates around back button fulcrum (1); Described second link gear comprises bridge plate (12) and the steel wire (7) that is connected one with preceding button (10), steel wire (7) one ends of crank-like connect bridge plate (12), the other end is located under the push rod supporting plate (25), the two ends of bridge plate back-moving spring (9) connect casing (18) and bridge plate (12) respectively, and bridge plate rotates around bridge plate fulcrum (13).

2, Machinery Brake Prune Machine Dual-Button Controlling Organization according to claim 1 is characterized in that described wirerope (5) is fixing by flexible axle pressing plate (3), and wirerope is with wirerope sleeve pipe (17) outward.