CN209207564U - A kind of electric shear - Google Patents

Abstract

The utility model discloses a kind of electric shears, belong to electric shearing tool, its structure includes handle, rocker arm, the blade assembly of handle front, and the control circuit board in handle, microswitch, motor and rod assembly etc., blade assembly rear end thereof is mainly mounted on handle front, also rod assembly is made of the reciprocating lever and pull rod being mutually rotatablely connected, when then blade assembly opposite handle is freely rotated, the pull rod can also be freely rotated with respect to reciprocating lever, namely rod assembly is while guaranteeing axial reciprocating movement and the movable blades of blade assembly and fixed blade formation folding shearing is driven to cooperate, the rotation of blade assembly can equally be followed and rotated, to realize the purpose that flexible modulation is capable of in the edge of a knife direction of electric shear；Improved structure can be suitably used for the scissors of the big edge of a knife or the small edge of a knife, and have the use advantages such as easy to operate, shearing is laborsaving, can be rotated by the flexible modulation of the edge of a knife even if some special occasions convenient to use.

Description

A kind of electric shear

Technical field

The utility model relates to the scissor constructions, in particular to a kind of electric shear in a kind of cutting implement.

Background technique

Currently, the big edge of a knife scissors sold in the market all uses manually, i.e., a pair of of blade intersection holding manually in X-type The scissors of shearing cooperation is held and opens and closes, this scissors is very laborious when shearing harder material, can also make after long-time use Ache very much at the tiger's jaw of palm.Also there is a kind of structure of electric shear, include mainly handle, the rocker arm on handle, before handle The blade assembly in portion and in handle and make the control circuit board, microswitch and motor of circuit connection, the motor of the motor Axis is equipped with reduction gear box；Wherein, blade assembly has fixed blade and a movable blades, reduction gear box and movable blades it Between be equipped with rod assembly, it is mobile by reduction gear box driving rod assembly to make axial reciprocating when use, and then drives movable blades Folding shearing cooperation is formed with fixed blade, therefore some harder paper and shrub branch can be sheared easily.Although this electricity Dynamic scissors can preferably solve the use defect of Manual knife, but the electric shear is generally applicable to small edge of a knife scissors, and Due to the connecting structure of rod assembly, so that the blade assembly opposite handle of front can not all carry out angular turn and use, Namely above-mentioned electric shear all can not arbitrarily adjust edge of a knife direction, so that the use to some special occasions is made troubles.

Summary of the invention

A kind of blade assembly is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies Opposite handle can flexible rotating, that is, realize a kind of electric shear of edge of a knife direction flexible modulation.

The technical issues of the utility model, is achieved through the following technical solutions:

A kind of electric shear, blade assembly including rocker arm, handle front on handle, handle and in handle and makees The motor shaft of control circuit board, microswitch and the motor of circuit connection, the motor is equipped with reduction gear box；The blade Component has fixed blade and movable blades；It is equipped with rod assembly between the reduction gear box and movable blades, and slows down It is mobile that gear-box driving rod assembly makees axial reciprocating, and then drives movable blades to form folding shearing with the fixed blade and match It closes, the blade assembly rear end thereof is mounted on handle front；The rod assembly includes reciprocating lever and pull rod, this is reciprocal Rod rear end and reduction gear box constitute power transmission cooperation, which is rotatably installed in reciprocating lever front end, and pull rod front end connects It connects on movable blades；The blade assembly opposite handle is freely rotated, which is also freely rotated with respect to reciprocating lever.

The power transmission fit structure of the reciprocal rod rear end and reduction gear box is the output shaft in reduction gear box It is equipped with turntable, which is equipped with the idler wheel of eccentric shaft and turning set on eccentric shaft, is accordingly equipped in reciprocal rod rear end Cross-drilled hole, the idler wheel setting move back and forth in cross-drilled hole in cross-drilled hole, and by the eccentric rotary of reduction gear box, in turn Drive the axial reciprocating of the reciprocating lever mobile.

The reciprocal rod rear end is equipped with transverse slat, and the cross-drilled hole is arranged on transverse slat, and the axial line of cross-drilled hole and reciprocal The axial line of bar is vertical.

The transverse slat two sides are respectively equipped with sliding slot, and transverse slat guiding sliding is mounted between two sliding slots.

The idler wheel lower end is equipped with magnetic patch, and Hall circuit board, the Hall circuit board and control line are equipped with below magnetic patch Road plate makees signal connection.

The rotational installation structure of the back end of tie rod and reciprocating lever front end is to be equipped with side opening, the side opening in reciprocating lever front end It is interior to be equipped with the fixed nut of plug dress, it accordingly is equipped with thread spindle in back end of tie rod, which passes through reciprocating lever front end and the spiral shell Mother constitutes screw thread rotation connection.

The pull rod front end is equipped with connecting column, and the movable blades rear end is equipped with the connection for being equipped with the connecting column Hole.

The blade assembly include lower cover, rear end be fixedly mounted on lower lid fixed blade, be arranged in fixed blade On movable blades and lid close be connected on lower lid and be all closed the rear end of fixed blade and movable blades including it is upper Lid is equipped with blade spring and the blade positioning plate by blade spring push, the blade positioning plate between upper cover and movable blades It is equipped with positioning column, and positioning column is fitted in the mounting hole of movable blades rear end by blade spring push.

The upper cover back-end is equipped with the hollow rotating shaft to extend back, before which is rotatably installed in handle front In hole, the pull rod front end passes through hollow rotating shaft and is connected on movable blades.

Locking push button and locking microswitch are equipped in the handle；The locking push button front is equipped with snap-gauge, phase The card slot of multiple circumference uniform distributions should be equipped on the outer circumference surface of hollow rotating shaft；The locking microswitch and control route Plate, microswitch, motor make circuit connection；The locking push button moves forward and controlling locking microswitch keeps circuit logical Electricity, the snap-gauge are fastened in card slot and limit rotation or locking push button of the hollow rotating shaft in preceding hole and move backward and control locking Microswitch makes down circuitry, which is detached from card slot, and hollow rotating shaft rotates in preceding hole.

The handle top surface is equipped with the safety lock push button of opening and closing microswitch, and handle side is equipped with control rocker arm pressing Self-locking push button.

Compared with prior art, blade assembly rear end thereof is mainly mounted on handle front by the utility model, will also Rod assembly is made of the reciprocating lever and pull rod being mutually rotatablely connected, then when blade assembly opposite handle is freely rotated, the pull rod Also it can be freely rotated with respect to reciprocating lever, that is, rod assembly is guaranteeing that axial reciprocating is mobile and drives movable blades and fixing cutter While piece forms folding shearing cooperation, it can equally follow the rotation of blade assembly and rotate, to realize electric shear Edge of a knife direction be capable of the purpose of flexible modulation；Therefore, improved structure can fit on the scissors of the big edge of a knife or the small edge of a knife With, and there are the use advantages such as easy to operate, shearing is laborsaving, the flexible tune of the edge of a knife can be passed through even if some special occasions Section is rotated and is easy to use.

Detailed description of the invention

Fig. 1 is the stereochemical structure exploded view of the utility model.

Fig. 2 is the fit structure schematic cross-sectional view of reduction gear box, rod assembly and blade assembly.

Specific embodiment

It will elaborate again by above-mentioned attached drawing to the utility model embodiment below.

As shown in Figure 1 and Figure 2, A. blade assembly, 1. lower covers, 2. fixed blades, 3. movable blades, 31. mounting holes, 32. connect Connect hole, 4. blade positioning plates, 41. positioning columns, 5. blade springs, 6. upper covers, 61. hollow rotating shafts, 611. card slots, B. pull rod group Part, 7. pull rods, 71. connecting columns, 72. thread spindles, 8. nuts, 9. reciprocating levers, 91. side openings, 92. cross-drilled holes, 10. oiliness bearings, 11. Sliding slot, 12. Hall circuit boards, 13. magnetic patch, 14. idler wheels, 15. eccentric shafts, 16. turntables, 17. reduction gear boxes, 18. motors, 19. handle, 191. preceding holes, 20. safety lock push buttons, 21. microswitches, 22. self-locking push buttons, 23. self-locking springs, 24. rocker arm bullets Spring, 25. batteries, 26. control circuit boards, 27. rocker arms, 28. locating covers, 29. locking springs, 30. locking push buttons, 301. driving levers, 302. snap-gauges, 303. limited blocks, 33. locking microswitches.

A kind of electric shear is widely portable to branch, grass or paper as shown in Figure 1, belonging to a kind of big edge of a knife electric shear The shearing opened, the utility model is according to the rear portion on the left of the view of Fig. 1 as electric shear, and view right side is as electric shear Front is described, and structure is mainly the blade assembly A and handle by rocker arm 27, handle front on handle 19, handle Control circuit board 26, battery 25 in 19, motor 18, Hall circuit board 12, slow down at the microswitch 21 on control circuit board 26 Gear-box 17 and rod assembly B etc. are constituted, and blade assembly A has fixed blade 2 and movable blades 3.

The handle 19 be made of being mutually interlocked as left housing and right shell and being interconnected and fixed by more screws in Empty component, shape are in 7 fonts of traverse, and for the long handle of 7 font as the lever held for hand, top surface is equipped with anti-skid chequer to mention It rises and holds non-skid property.

The rocker arm 27 is arranged in lever bottom surface, and one end hingedly rotates, the other end passes through built-in priming lever spring 24 Elastic pushing tow and form the lug boss popped up outward；When the lug boss for holding lever and clutch finger compressing rocker arm 27 is inwardly indented When, it can touch and open the microswitch 21 on the control circuit board 26 in handle 19, and electric shear is made to enter work, instead 24 pushing tow rocker arm 27 of then priming lever spring lug boss reset and be detached from and close the microswitch 21 on control circuit board 26.

The lever side is equipped with self-locking push button 22, which is horizontal push-and-pull move component, can be used for controlling The pressing operation of rocker arm 27, that is, pressing inward against self-locking push button 22 will limit the pressing operation of rocker arm 27, protruding self-locking push button 22 can release the pressing operation of rocker arm 27, and the operation of self-locking push button 22 is also made elastic pushing tow by self-locking spring 23 and resetted.

The lever top surface is equipped with safety lock push button 20, can be used for opening and closing microswitch 21, and safety lock push button 20 is right In the opening and closing of microswitch 21, be microswitch 21 is carried out it is normally opened or normally closed, that is, control motor 18 power down function and Powering-on function, i.e., when the forward and backward promotion of safety lock push button 20 can contact or be detached from microswitch 21, then the pressing of rocker arm 27 can just open Dynamic microswitch 21, or microswitch 21 can not be started rocker arm 27 presses, therefore safety lock push button 20 also plays one The effect of a security insurance.

Control circuit board 26, battery 25, microswitch 21 and the motor 18 makees circuit connection by inner conductors, with Form a complete control circuit；Wherein, the vertically-mounted mode downward using motor shaft of motor 18, is equipped on motor shaft Reduction gear box 17, which is used as power to export, to slow down, and the output shaft of reduction gear box 17 is equipped with a circular turntable 16, in turntable Outer side bottom surface is equipped with the idler wheel 14 of eccentric shaft 15 and turning set on eccentric shaft, and the lower end of the idler wheel, which is equipped with, embeds fixed magnetic Block 13, and it is arranged in below magnetic patch and constitutes with magnetic patch 13 Hall circuit board 12 of control cooperation, the Hall circuit board and control Wiring board 26 processed makees signal connection, and specific structure is: when magnetic patch 13 follows idler wheel 14 to move, can be formed and be felt with Hall circuit board 12 It answers, forms reciprocal induction, and then the control connected by signal usually between two induction points on Hall circuit board 12 Wiring board 26 controls the intermittent positive and negative rotation of motor 18.

The rod assembly B is arranged between reduction gear box 17 and movable blades 3 comprising reciprocating lever 9 and pull rod 7,9 rear end of reciprocating lever and reduction gear box 17 constitute power transmission cooperation, specific structure are as follows: 9 rear end of reciprocating lever is equipped with one Horizontal positioned transverse slat, the transverse slat are equipped with a cross-drilled hole 92 penetrated through above and below, are also possible to a translot, the axis of cross-drilled hole 92 Heart line is vertical with the axial line of reciprocating lever 9；The idler wheel 14 is arranged in cross-drilled hole 92, further respectively has sliding in transverse slat two sides Equipped sliding slot 11；Therefore, motor 18 is subtracted the driving turntable 16 of gear-box 17 and is rotated, and can drive the idler wheel 14 on eccentric shaft 15 Make eccentric rotary, since idler wheel 14 is built in cross-drilled hole 92, and transverse slat two sides are that sliding and position limitation is carried out by two sliding slots 11, Then the eccentric rotary of idler wheel 14 is converted into the reciprocating movement in cross-drilled hole 92, then forms transverse slat along two sliding slots 11 and lead The axial reciprocating movement of reciprocating lever 9 is converted into sliding, that is, eccentric rotary.Oil-containing axis is equipped in the middle part of the reciprocating lever 9 10 bearings are held, the reliability moved back and forth with service hoisting.

7 rear end thereof of pull rod is mounted on 9 front end of reciprocating lever, specific structure are as follows: 9 front end of reciprocating lever is equipped with side opening 91, the side opening is interior to be equipped with the fixed nut 8 of plug dress, and accordingly in 7 rear end of pull rod equipped with thread spindle 72, which passes through reciprocating lever Behind 9 front ends, screw thread rotation is constituted with nut 8 and is connect, therefore reciprocating lever 9 can drive pull rod 7 to make axial reciprocating movement, pull rod 7 It can be rotated relative to reciprocating lever 9.Certainly, rotational installation structure also there are many kinds of, as 7 rear end of pull rod and 9 front end of reciprocating lever can also lead to It crosses the connecting shaft being rotatably assorted and connecting hole realizes rotation connection, and this structure is equally also able to achieve mobile and relatively rotates； 7 front end of pull rod is equipped with connecting column 71, and is connected by connecting column with 3 rear end of movable blades.

The blade assembly A is by lower cover 1, fixed blade 2,3 and of movable blades respectively according to sequence from bottom to top The composition such as upper cover 6, the rear end of the fixed blade 2 are fixedly mounted on lower cover 1, and movable blades 3 are arranged in fixed blade 2, on Lid 6 then cover conjunction be connected on lower cover 1 and be all closed the rear end of fixed blade 2 and movable blades 3 including；Meanwhile upper cover 6 with Blade spring 5 and the blade positioning plate 4 by blade spring push contact movable blades 3 are equipped between movable blades 3, the blade is fixed Position plate is equipped with positioning column 41, then 5 ejection blade positioning plate 4 of blade spring can drive positioning column 41 to be fitted in movable blades 3 In the mounting hole 31 of rear end, cooperation is sheared in the folding so as to form the relatively fixed blade 2 of movable blades 3.

In addition, 6 rear end of upper cover is equipped with the hollow rotating shaft 61 to extend back, which is rotatably installed in 19 front of handle Preceding hole 191 in, i.e., so that the entire rear end blade assembly A can be rotatably installed in 19 front of handle, in the outer of hollow rotating shaft 61 Periphery is equipped with the card slot 611 of multiple circumference uniform distributions, and 7 front end of pull rod can be directly through hollow rotating shaft 61, and passes through connection Column 71 is connected in the connecting hole 32 of 3 rear end of movable blades, so that the movement for movable blades 3 provides power transmitting.

Locating cover 28, locking spring 29, locking push button 30 and locking microswitch 33 are additionally provided in the handle 19, it should Locking microswitch 33 and control circuit board 26, microswitch 21, motor 18 make circuit connection, and become integral control circuit One of electronic component.

Locking 30 front of push button is equipped with the snap-gauge 302 of disjunctor, and top is equipped with the driving lever 301 upwardly extended, positioning The setting of lid 28 in the locking rear side of push button 30, the setting of locking spring 29 between locating cover 28 and locking push button 30, therefore under normality by 29 pushing tow of locking spring to lock the trend that push button 30 consistently forms forward movement, then the locking under the configuration state pushes away The driving lever 301 under the trend effect of forward movement of button 30 can discharge locking microswitch 33, i.e. normally closed switch makes power on circuitry, and And snap-gauge 302 has also been pushed to be fastened in card slot 611, to limit rotation of the hollow rotating shaft 61 in preceding hole 191；When to pusher When dynamic locking push button 30 overcomes the elastic force of locking spring 29 and moves backward, which will open locking microswitch 33 Make down circuitry, snap-gauge 302 is also detached from out of card slot 611 simultaneously at this time, then hollow rotating shaft 61 can freely turn in preceding hole 191 It is dynamic.

Also, the side for locking push button 30 is additionally provided with limited block 303, and effect is limitation locking push button 30 in operational process In rotation, that is, be always ensured that locking push button 30 forward and backward sliding motion.

Be arranged above-mentioned this structure purpose be in order to guarantee blade assembly A can opposite handle 19 make 360 degree freely turn When dynamic, entire control circuit is in off-position, and when entire control circuit is in energized state, blade assembly A just can not phase Make 360 degree to handle 19 to be freely rotated；That is, control circuit power-off then blade assembly A can flexible rotating, control circuit Be powered then blade assembly A can not flexible rotating, thus guarantee when the edge of a knife direction of electric shear remakes flexible modulation use peace Quan Xing prevents the generation of sudden hurt accident.

The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality The equivalent structure design of example is applied, should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of electric shear, blade assembly (A) including rocker arm (27), handle front on handle (19), handle and it is located at Handle (19) is interior and makees the control circuit board (26), microswitch (21) and motor (18) of circuit connection, the motor shaft of the motor It is equipped with reduction gear box (17)；The blade assembly (A) has fixed blade (2) and movable blades (3)；The deceleration It is equipped with rod assembly (B) between gear-box (17) and movable blades (3), and reduction gear box (17) driving rod assembly (B) is made Axial reciprocating is mobile, and then movable blades (3) and the fixed blade (2) is driven to form folding shearing cooperation, it is characterised in that Described blade assembly (A) rear end thereof is mounted on handle (19) front；The rod assembly (B) include reciprocating lever (9) and Pull rod (7), reciprocating lever (9) rear end and reduction gear box (17) constitute power transmission cooperation, pull rod (7) rear end thereof installation In reciprocating lever (9) front end, pull rod (7) front end is connected on movable blades (3)；Described blade assembly (A) opposite handle (19) It is freely rotated, which is also freely rotated with respect to reciprocating lever (9).

2. a kind of electric shear according to claim 1, it is characterised in that reciprocating lever (9) rear end and reduction gearing The power transmission fit structure of case (17) is to be equipped with turntable (16) on the output shaft of reduction gear box (17), which is equipped with The idler wheel (14) of eccentric shaft (15) and turning set on eccentric shaft is accordingly equipped with cross-drilled hole (92) in reciprocating lever (9) rear end, described Idler wheel (14) setting in the cross-drilled hole (92), and make reciprocal move by the eccentric rotary of reduction gear box (17) and in cross-drilled hole (92) It is dynamic, and then drive the axial reciprocating of the reciprocating lever (9) mobile.

3. a kind of electric shear according to claim 2, it is characterised in that reciprocating lever (9) rear end is equipped with transverse slat, The cross-drilled hole (92) is arranged on transverse slat, and the axial line of cross-drilled hole (92) is vertical with the axial line of reciprocating lever (9)；The cross Plate two sides are respectively equipped with sliding slot (11), and transverse slat guiding sliding is mounted between two sliding slots (11).

4. a kind of electric shear according to claim 2, it is characterised in that idler wheel (14) lower end is equipped with magnetic patch (13), Hall circuit board (12) are equipped with below magnetic patch, signal connection is made in the Hall circuit board and control circuit board (26).

5. a kind of electric shear according to claim 1, it is characterised in that pull rod (7) rear end and reciprocating lever (9) The rotational installation structure of front end is to be equipped with side opening (91) in reciprocating lever (9) front end, and the fixed nut of plug dress is equipped in the side opening (8), thread spindle (72) accordingly are equipped in pull rod (7) rear end, which passes through reciprocating lever (9) front end and the nut (8) structure It is connected at screw thread rotation.

6. a kind of electric shear according to claim 1, it is characterised in that pull rod (7) front end is equipped with connecting column (71), the movable blades (3) rear end is equipped with the connecting hole (32) for being equipped with the connecting column (71).

7. a kind of electric shear according to claim 1, it is characterised in that the blade assembly (A) include lower cover (1), Fixed blade (2) that rear end is fixedly mounted on lower lid, the movable blades (3) being arranged in fixed blade and lid close connection Upper cover (6) including being all closed on lower cover (1) and by the rear end of fixed blade (2) and movable blades (3), in upper cover and activity Blade spring (5) are equipped between blade (3) and the blade positioning plate (4) by blade spring push, the blade positioning plate are equipped with Positioning column (41), and positioning column is fitted in the mounting hole (31) of movable blades (3) rear end by blade spring (5) pushing tow.

8. a kind of electric shear according to claim 7, it is characterised in that upper cover (6) rear end is equipped with and extends back Hollow rotating shaft (61), which is rotatably installed in the preceding hole (191) of handle (19) front, before the pull rod (7) End is connected on movable blades (3) across hollow rotating shaft (61).

9. a kind of electric shear according to claim 8, it is characterised in that be equipped with locking push button in the handle (19) (30) and microswitch (33) are locked；Locking push button (30) front is equipped with snap-gauge (302), accordingly in hollow rotating shaft (61) Outer circumference surface be equipped with multiple circumference uniform distributions card slot (611)；The locking microswitch (33) and control circuit board (26), microswitch (21), motor (18) make circuit connection；The locking push button (30) moves forward and controls locking fine motion Switch (33) makes power on circuitry, which is fastened in card slot (611) and limits hollow rotating shaft (61) in preceding hole (191) Interior rotation or locking push button (30), which moves backward and control locking microswitch (33), makes down circuitry, and the snap-gauge (302) is de- From in card slot (611), hollow rotating shaft (61) rotates in preceding hole (191).

10. a kind of electric shear according to claim 1, it is characterised in that it is micro- that handle (19) top surface is equipped with opening and closing The safety lock push button (20) of dynamic switch (21), handle (19) side are equipped with the self-locking push button (22) of control rocker arm (27) pressing.