Novel electric scissors
Technical Field
The utility model relates to an electric scissors technical field especially relates to a novel electric scissors.
Background
The electric pruning scissors are small and exquisite in shape and convenient to carry as a garden tool, and are a common tool in gardening pruning. The existing electric scissors are driven in a way that a motor changes torque through a gearbox of a planetary reduction gearbox, and the rotation of high rotating speed and small torque is converted into the power of low rotating speed and large torque through a large bevel gear and a plane bearing to drive a gear shaft core to do anticlockwise circular motion; the transmission in the mode needs to be converted through a plane bearing, and the transmission efficiency is low. Meanwhile, the fixed blade of the existing electric scissors is fixedly arranged on the machine shell, and the movable blade is rotatably connected with the fixed blade. At present, when the movable blade of the electric pruning scissors in the market is replaced, most of the electric pruning scissors need to disassemble the machine shell, the replacement work is very troublesome, and although the machine shell does not need to be disassembled, a few electric pruning scissors need to disassemble bolts for connecting the movable blade and the fixed blade, and the blade replacement step is still complex.
Accordingly, it is highly desirable to design an electric shears that improves output transmission efficiency and allows for easier, more convenient, and faster movement of the movable blade, preferably without requiring the removal of any part to change the blade.
SUMMERY OF THE UTILITY MODEL
Not enough to the above that prior art exists, the utility model discloses an aim at solves current electric scissors transmission inefficiency, and movable blade dismantles to be changed inconveniently, uses inconvenient problem, provides a novel electric scissors, and the structure is simpler, can further improve transmission efficiency to need not dismantle any part, just can dismantle and change movable blade, thereby make movable blade's dismouting, change simple, convenient, swift more.
In order to solve the technical problem, the utility model discloses a technical scheme is like this: a novel electric scissors comprises a shell, a storage battery, a driving motor, a planetary speed reducing mechanism, an output bevel gear and a scissors main body, wherein the storage battery, the driving motor and the planetary speed reducing mechanism are all arranged in the shell; the driving motor is connected with the output bevel gear after passing through the planetary reduction mechanism, and the scissors main body is connected with an outer gear ring of the planetary reduction mechanism; the method is characterized in that:
the scissors main body comprises a mounting seat, a fixed blade, a movable blade, a swinging tooth and a connecting shaft; the rear end of the mounting seat is connected with an outer gear ring of the planetary reduction mechanism, one side of the mounting seat is formed into a mounting plane, the rear end of the mounting seat is provided with a containing groove, and one side of the front part of the containing groove, which is close to the mounting plane, is formed into an opening; the output bevel gear is positioned in the accommodating groove, and one side of the output bevel gear extends out of the opening and protrudes out of the mounting plane; the front part of the mounting plane is provided with a mounting hole, the mounting hole penetrates through two sides of the mounting seat, and the axial lead of the mounting hole is vertical to the mounting plane; the fixed blade, the movable blade and the swing teeth are sequentially overlapped on the mounting plane, and hinge holes are formed in the corresponding positions of the fixed blade, the movable blade and the swing teeth; the connecting shaft comprises a hinge section and a positioning section, wherein the diameter of the hinge section is consistent with that of the hinge hole, and the diameter of the positioning section is smaller than that of the hinge section; the end part of the hinged section is provided with a positioning cap, the end part of the positioning section sequentially penetrates through hinged holes in the swing tooth, the movable blade and the fixed blade and the mounting hole and then is connected with the mounting seat through a locking mechanism, and the hinged holes of the swing tooth and the movable blade are matched and hinged with the hinged section of the connecting shaft;
the fixed blade is fixedly connected with the mounting plane, and the rear end of the swing tooth is meshed with the output bevel gear; the rear end of the movable blade is provided with a guide groove, the guide groove extends forwards to be communicated with the hinge hole, and the opening degree of the guide groove is consistent with the diameter of the positioning section of the connecting shaft; a transmission block is arranged at the lower side of the swing tooth and corresponds to the guide groove, and the transmission block extends into the guide groove and is clamped with the guide groove, so that the swing tooth can drive the movable blade to rotate through the transmission block.
Furthermore, an elastic gasket is arranged between the positioning cap and the swing tooth.
Furthermore, a flat cushion is arranged between the elastic gasket and the swing tooth.
Furthermore, the locking mechanism is a locking nut, threads are arranged at the end part of the positioning section, and the locking nut is connected with the threads at the end part of the positioning section in a matched mode.
Furthermore, the locking mechanism is a cam, the cam is connected with the end part of the positioning end of the connecting shaft through a pin shaft, the cam is rotated to drive the connecting shaft to move, and the position of the connecting shaft can be locked.
Furthermore, a first guide plane protruding out of the side wall of the mounting hole is arranged on one side or two sides of the mounting hole, a second guide plane is formed on the positioning section of the connecting shaft corresponding to the first guide plane, and the second guide plane penetrates through the end part of the positioning section; the connecting shaft and the mounting hole are matched together through the second guide plane and the first guide plane.
Furthermore, a positioning convex ring is arranged on the outer side of the mounting hole on the mounting plane of the mounting seat, and the outer diameter of the positioning convex ring is consistent with the aperture of the hinge hole of the fixed blade; the fixed blade is sleeved on the positioning convex ring, and the rear end of the fixed blade is fixedly connected with the mounting seat through a bolt.
Furthermore, a Hall plate is arranged on the mounting plane of the mounting seat and located between the rear end of the fixed blade and the opening, a baffle is arranged between the Hall plate and the opening, and two ends of the baffle extend to two sides of the mounting plane so as to separate the Hall plate from the opening.
Furthermore, an oil groove is formed in one side, close to the movable blade, of the fixed blade, and lubricating grease is filled in the oil groove.
Compared with the prior art, the utility model has the advantages of as follows: the structure is simple, and the assembly is convenient; the driving motor is directly connected with the output bevel gear after passing through the planetary reduction mechanism, the output bevel gear drives the swing teeth, and the swing teeth directly drive the movable blade, so that the transmission efficiency can be further improved; simultaneously, this scheme of adoption need not dismantle any part, only needs not become flexible locking mechanism, makes movable blade can remove the location section of connecting axle and can carry out movable blade dismouting to can dismantle fast and change movable blade, thereby make movable blade's dismouting, change simple, convenient, swift more.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
Fig. 2 is an exploded view of the scissors body of fig. 1.
Fig. 3 is a schematic structural diagram of embodiment 2.
Fig. 4 is an exploded view of the scissors body of fig. 3.
In the figure: 1-driving motor, 2-planetary reduction mechanism, 3-output bevel gear, 4-mounting seat, 5-fixed blade, 6-movable blade, 7-swing tooth, 8-connecting shaft, 81-hinged section, 82-positioning section, 9-positioning cap, 10-guide groove, 11-elastic gasket, 12-flat pad, 13-locking nut, 14-cam, 15-convex ring, 16-Hall plate and 17-baffle.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: referring to fig. 1 and 2, the novel electric scissors comprise a housing (not shown in the figure), a storage battery (not shown in the figure), a driving motor 1, a planetary reduction gear 2, an output bevel gear 3 and a scissors main body, wherein the storage battery, the driving motor 1 and the planetary reduction gear 2 are all installed in the housing. The driving motor 1 is connected with the output bevel gear 3 after passing through the planetary speed reducing mechanism 2, and the scissors main body is connected with an outer gear ring of the planetary speed reducing mechanism 2. In this way, the driving motor 1 is directly connected with the output bevel gear 3 after passing through the planetary reduction mechanism 2, the output bevel gear 3 drives the swing teeth 7, and the swing teeth 7 directly drive the movable blade 6, so that the transmission efficiency can be further improved.
The scissors main body comprises a mounting seat 4, a fixed blade 5, a movable blade 6, a swinging tooth 7 and a connecting shaft 8. The rear end of the mounting seat 4 is connected with an outer gear ring of the planetary reduction mechanism 2, and is in threaded connection or clamping connection during actual assembly; one side of the mounting seat 4 is formed into a mounting plane, the rear end of the mounting seat 4 is provided with a containing groove, and one side of the front part of the containing groove, which is close to the mounting plane, is formed into an opening; in specific implementation, the mounting seat 4 is connected with the shell through thread matching. The output bevel gear 3 is positioned in the accommodating groove, and one side of the output bevel gear extends out of the opening and protrudes out of the mounting plane. The front part of the mounting plane is provided with a mounting hole which penetrates through two sides of the mounting seat 4, and the axis line of the mounting hole is vertical to the mounting plane. The fixed blade 5, the movable blade 6 and the swing teeth 7 are sequentially overlapped and arranged on the installation plane, and hinge holes are formed in the corresponding positions of the fixed blade 5, the movable blade 6 and the swing teeth 7. An oil groove is formed in one side of the fixed blade 5 close to the movable blade 6, and lubricating grease is filled in the oil groove. In specific implementation, the two oil grooves are distributed on two sides of the hinge hole on the fixed blade 5. Thus, the fixed blade 5 and the movable blade 6 can be lubricated more favorably, and friction between the fixed blade 5 and the movable blade 6 can be reduced.
The connecting shaft 8 comprises a hinge section 81 and a positioning section 82, wherein the diameter of the hinge section 81 is consistent with that of the hinge hole, and the diameter of the positioning section 82 is smaller than that of the hinge section 81. The end part of the hinged section 81 is provided with a positioning cap 9, the end part of the positioning section 82 sequentially penetrates through the hinged holes on the swing tooth 7, the movable blade 6 and the fixed blade 5 and the mounting hole and then is connected with the mounting seat 4 through a locking mechanism, the swing tooth 7 is pressed tightly through the positioning cap 9, and the hinged holes of the swing tooth 7 and the movable blade 6 are matched and hinged with the hinged section 81 of the connecting shaft 8. In specific implementation, the positioning cap 9 and the connecting shaft 8 are integrally formed, the locking mechanism is a locking nut 13, a thread is arranged at the end part of the positioning section 82, and the locking nut 13 is connected with the end part of the positioning section 82 in a thread fit manner; thus, locking is carried out through the locking nut 13, the locking effect can be guaranteed, and looseness is avoided. An elastic gasket 11 is also arranged between the positioning cap 9 and the swing tooth 7; like this, behind not hard up locking mechanism, under the effect of elastic gasket 11, move to deviating from locking mechanism direction after connecting to be convenient for dismouting movable blade 6. A flat cushion 12 is also arranged between the elastic gasket 11 and the swing tooth 7; therefore, friction between the elastic gasket 11 and the swing tooth 7 can be reduced, and the situation that the locking mechanism cannot be locked after the swing tooth 7 is deformed due to long-time friction is avoided.
The fixed blade 5 is fixedly connected with the mounting plane, and the rear end of the swing tooth 7 is meshed with the output bevel gear 3; when the installation structure is implemented, a positioning convex ring 15 is arranged on the outer side of an installation hole on an installation plane of the installation seat 4, and the outer diameter of the positioning convex ring 15 is consistent with the aperture of a hinge hole of the fixed blade 5; the fixed blade 5 is sleeved on the positioning convex ring 15, and the rear end of the fixed blade is fixedly connected with the mounting seat 4 through a bolt; in this way, the mounting of the fixed blade 5 can be completed quickly, and the stability of the fixed blade 5 is made better. A guide groove 10 is arranged at the rear end of the movable blade 6, the guide groove 10 extends forwards to be communicated with the hinge hole, and the opening degree of the guide groove 10 is consistent with the diameter of the positioning section 82 of the connecting shaft 8; thus, when the locking mechanism is in a loose state, the interactive blade is sleeved into the positioning section 82 through the guide groove 10, and the positioning section 82 is positioned in the hinge hole; then locking is carried out, in the locking process, the connecting shaft 8 moves towards the locking mechanism, so that the hinged section 81 enters the hinged hole, and the movable blade 6 is installed; when disassembling, the reverse operation is carried out. A transmission block is arranged at the lower side of the swing tooth 7 corresponding to the position of the guide groove 10, extends into the guide groove 10 and is clamped with the guide groove 10, so that the swing tooth 7 can drive the movable blade 6 to rotate through the transmission block; thereby being capable of stably driving the movable blade 6 to rotate.
A first guide plane protruding out of the side wall of the mounting hole is arranged on one side or two sides of the mounting hole, a second guide plane is formed on the positioning section 82 of the connecting shaft 8 corresponding to the first guide plane, and the second guide plane penetrates through the end part of the positioning section 82; the connecting shaft 8 is fitted with the mounting hole through the second guide plane and the first guide plane. Therefore, the connecting shaft 8 can be prevented from rotating, and the working stability of the scissors is better.
A hall plate 16 is further arranged on the mounting plane of the mounting seat 4, and the hall plate 16 is located between the rear end of the fixed blade 5 and the opening and is connected with the mounting seat 4 through a bolt. A baffle plate 17 is further arranged between the Hall plate 16 and the opening, and two ends of the baffle plate 17 extend to two sides of the mounting plane, so that the Hall plate 16 is separated from the opening. The partition plate 17 is used for partitioning, the structure is simpler, lubricating grease for the output bevel gear 3 can be effectively prevented from being directly transmitted to the Hall plate 16, and therefore the service life of the Hall plate 16 can be prolonged.
In specific implementation, the device further comprises a trigger assembly, wherein the trigger assembly is arranged on one side of the mounting seat 4 and is related to the position of the Hall plate 16; a control board is also provided in the housing, to which control board the hall plate 16 is connected by means of a wire. The storage battery supplies power to each electrical element.
Example 2: referring to fig. 3 and 4, different from embodiment 1, the locking mechanism is a cam 14, the cam 14 is connected to an end of the positioning end of the connecting shaft 8 through a pin, and the cam 14 is rotated to drive the connecting shaft 8 to move and lock the position of the connecting shaft 8. Like this, can realize locking mechanism's locking and lax fast to improve operating efficiency. Wherein, the positioning cap 9 is also connected with the connecting shaft 8 through thread matching.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.