CN219919764U - Small swing arm electric scissors - Google Patents

Abstract

The utility model relates to a small swing arm electric scissors, which is easy to cause the phenomenon of tooth swing and tooth jump of a clamping blade when the existing electric scissors shear hard materials. The utility model relates to a pair of small swing arm electric scissors, which comprises a shell, wherein a pair of hinged blades are arranged at the end part of the shell, a gear assembly, a driving motor, a switch controller and a Hall sensor are arranged in the shell, and the small swing arm electric scissors are characterized in that: the two opposite outsides of a pair of swing teeth of the gear assembly are respectively provided with a retainer, the outside of one retainer is provided with a Hall plate of the Hall sensor, the lower part of one swing tooth close to the Hall plate is provided with a magnet, the pair of retainers are arranged at the end part of the shell to fasten the upper limit and the lower limit of the pair of swing teeth and the blades, and the hinge shafts of the pair of blades penetrate through the two ends of the pair of retainers at the same time and are limited by the axial directions of the retainers. According to the electric scissors, the upper face and the lower face of the swinging teeth are axially limited by arranging the retainer outside the swinging teeth, so that the phenomenon that the swinging teeth jump to influence the folding of the scissors is avoided when the scissors clamp edges.

Description

Small swing arm electric scissors

Technical Field

The utility model belongs to the technical field of agricultural jigs, and relates to electric scissors, in particular to small swing arm electric scissors.

Background

The electric shears for agricultural use are used for pruning branches of flowers, fruits and trees, so that the trees are pruned reasonably and the result is rich. Because the paper strips of fruit trees are numerous, the use efficiency of the traditional electric scissors is influenced due to clumsy use.

The electric shears disclosed in CN 217308385U, which comprises a first casing, a second casing rotatably provided at an end of the first casing for adjusting an angle between the second casing and the first casing; the first movable blade and the second movable blade are hinged on the second shell; the driving assembly is positioned in the second shell and used for driving the first movable blade and the second movable blade to open or close relatively.

The driving assembly comprises a first bevel gear and a motor; the first bevel gear is connected to an output shaft of the motor, a first tooth part is arranged at the end part of the first movable blade in the second shell, the first tooth part is meshed with the first bevel gear, a second tooth part is arranged at the end part of the second movable blade in the second shell, and the second tooth part is meshed with the first bevel gear.

When the electric scissors with the structure are used, when the electric scissors face branches made of harder materials, the blades are easy to clamp, so that the first tooth part and the second tooth part easily generate the tooth jumping phenomenon, and the scissors blades cannot be effectively folded to influence the shearing.

Disclosure of Invention

The utility model aims to solve the problems, and provides a pair of swing arms electric scissors, which are limited up and down by arranging a retainer, so that the problem that the swing teeth jump teeth to influence the folding of blades due to the fact that branches are clamped into the blades is solved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a little swing arm electric shears, includes the shell, the tip of shell is provided with a pair of articulated blade, the inside of shell is provided with and is used for the drive assembly that the blade mutually opened and shut, drive assembly include gear assembly and driving motor, gear assembly include the umbrella tooth and with the opposite both sides of umbrella tooth mesh mutually a pair of pendulum tooth, a pair of pendulum tooth with a pair of blade be connected, the umbrella tooth with driving motor drive connect, driving motor be connected with hall sensor through the switch controller electricity, hall sensor include hall plate and magnet, its characterized in that: the two opposite outsides of a pair of swing teeth are respectively provided with a retainer, wherein the Hall plate is arranged outside one retainer, the lower part of one swing tooth close to the Hall plate is provided with a magnet which is mutually induced with the Hall plate, the pair of retainers are arranged at the end parts of the shell to fasten the upper limit and the lower limit of the pair of swing teeth, and the hinge shafts of the pair of blades penetrate through the upper surfaces and the lower surfaces of the two sides of the pair of retainers simultaneously to be axially limited by the retainers.

Further, a concave surface is arranged at one end of the surface of the retainer, a step for supporting the blade is arranged at the other end of the surface of the retainer, a hinge hole is arranged on the step, and through holes are arranged at two sides of the end part of the retainer, which is positioned outside the concave surface; the hinge shaft of the blade extends out of the hinge hole, a screw is arranged in the through hole, and the pair of retainers are connected and fixed through the hinge shaft and the screw after being buckled relatively.

Further, the pair of retainers are embedded at the end part of the shell after being buckled up and down, one part of the retainers stretches into the shell to be wrapped by the shell, and the pair of swing teeth are respectively arranged in the concave surface.

Further, a speed reducer is arranged at the end part of the driving motor, and the speed reducer drives the bevel gear to rotate; the end parts of the pair of retainers which extend into the shell are mutually nested and connected with the end parts of the speed reducer into a whole.

Further, the pair of oscillating teeth is detachably connected with the pair of blades.

Further, a bump is arranged on the surface of the swing tooth, a groove matched with the bump is arranged at the end part of the blade, and the bump is embedded in the groove to connect the blade with the swing tooth.

Further, a clamping groove is formed in the end portion of the swing tooth, a protrusion matched with the clamping groove is arranged at the end portion of the blade, and the protrusion is embedded in the clamping groove to enable the blade to be connected with the swing tooth.

Further, a wire hole is formed in the swing tooth, a screw hole is formed in the blade, and the swing tooth is connected with the blade through a screw.

By adopting the technical scheme, the utility model has the following advantages and effects:

1. according to the small swing arm electric scissors, the pair of blades and the swing teeth are limited up and down through the pair of retainers, when the blades of the scissors face branches with high shearing hardness, the retainers are buckled up and down to form the shell structure, the pair of swing teeth can be limited up and down and gradually engaged with the umbrella teeth for movement, the blades are gradually folded for shearing the branches, and therefore the phenomenon that the swing teeth are separated up and down mutually to jump teeth due to the fact that the main blades are temporarily clamped by the retainers due to the fact that the retainers are limited up and down can be avoided.

2. According to the small swing arm electric scissors, the pair of retainers are buckled up and down to form the shell, and the swing teeth are arranged in the shell, so that the limit can be realized, and the phenomenon that the swing teeth are influenced by the entering of cut sundries can be prevented; the shell is buckled up and down through the hinge shaft of the blade after the retainer is buckled, so that the swing teeth and the blade are limited up and down to form a whole, the connection is more compact, the shearing function of directly converting the swing tooth cross swing motion into the blade is realized, and the delayed shearing of the blade can not be generated.

Drawings

FIG. 1 is a schematic diagram of an explosive structure according to the present utility model.

Fig. 2 is a schematic cross-sectional structure of fig. 1.

Fig. 3 is a schematic view of an exploded view of the drive assembly and blade assembly portion of the present utility model.

Fig. 4 is a schematic view of an exploded view of the assembly of the drive assembly and the cage of the present utility model.

Fig. 5 is a schematic view of a tooth-oscillating isometric structure of the present utility model.

Fig. 6 is a schematic view of an isometric structure of the retainer of the present utility model.

Fig. 7 is a schematic top view of the cage of the present utility model.

In the figure, 1-housing, 2-blade, 3-gear assembly, 4-drive motor, 5-hall sensor, 6-cage, 021-hinge shaft, 022-groove, 031-bevel gear, 032-bevel gear, 0321-bump, 041-decelerator, 051-hall plate, 052-magnet, 061-concave, 062-step, 063-hinge hole, 064-through hole, 065-notch.

Detailed Description

The following detailed description of the embodiments of the present utility model will be provided with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.

The utility model provides a pair of small swing arm electric scissors, which are characterized in that a pair of retainers are arranged on the periphery of a swing tooth of the existing electric scissors to limit the swing tooth in the vertical axial direction, so that when the scissors cut hard branches, the branches temporarily clamp a main blade to enable the swing tooth to jump up and down to influence the folding of the blade.

As shown in fig. 1-4. The utility model provides small swing arm electric scissors, which comprise a shell 1, wherein a pair of hinged blades 2 are arranged at the end part of the shell 1, a driving assembly for driving the blades 2 to open and close mutually is arranged in the shell 1, the driving assembly comprises a gear assembly 3 and a driving motor 4, the gear assembly 3 comprises a bevel gear 031 and a pair of swing teeth 032 meshed with two opposite sides of the bevel gear 031, the pair of swing teeth 032 are connected with the pair of blades 2, a rotating shaft of the bevel gear 031 is connected with the driving motor 4, a Hall sensor 5 is electrically connected with the driving motor 4 through a switch controller, the Hall sensor 5 comprises a Hall plate 051 and a magnet 052, two opposite outer sides of the pair of swing teeth 032 are respectively provided with a retainer 6, the lower part of one swing tooth close to the Hall plate 051 is provided with the lower part of the corresponding Hall plate 051, the lower part of the pair of swing teeth is provided with the upper end part of the upper side of the corresponding to the axial direction of the corresponding retainer 6, and the lower side of the upper side of the corresponding retainer 6 is buckled with the lower side of the upper side of the corresponding retainer 2, and the upper side of the lower side of the retainer 2 is provided with the lower side of the corresponding retainer 6, and the upper side of the lower side of the retainer 2 is provided with the corresponding magnet 032.

Specifically, the shell 1 is a pistol-type shell 1 with a handle formed by buckling two half shells, a storage battery and a switch controller are arranged in the handle of the shell 1, the storage battery supplies power for the driving motor 4, a Hall plate 051 and a magnet 052 of the Hall sensor 5 detect and control displacement signals of a pair of swing teeth 032 and then transmit the displacement signals to the switch controller, and a switch of the switch controller is arranged on a trigger of the handle. The trigger is manually moved, and the control switch controller drives the driving motor 4 to rotate forwards and reversely to realize the mutual crossed swinging of the pair of swinging teeth 032. The movement shearing of the scissor blade 2 is realized by the cross swinging of the swinging teeth 032. The gear assembly 3 and the drive motor 4 are arranged in the end of the housing 1 on the lateral side.

As shown in fig. 5. The surface of one end of the swing tooth 032 is a tooth surface, and the surface of the other end is provided with a step 062. The pair of swing teeth 032 comprises an upper swing tooth and a lower swing tooth, the upper swing tooth and the lower swing tooth are respectively arranged on the upper side and the lower side of the umbrella tooth 031 and are engaged with the umbrella tooth 031 up and down, and two steps 062 ends of the upper swing tooth and the lower swing tooth are connected with a pair of hinged blades 2.

The pair of retainers 6 are formed by connecting an upper retainer and a lower retainer up and down, the Hall plate 051 is arranged on the bottom surface of the lower end of the lower retainer, and the magnet 052 is arranged at the bottom of the lower swing tooth and is mutually induced with the Hall plate 051 to realize the position detection of the swing tooth 032.

Further, as shown in fig. 6 and 7. A concave surface 061 is arranged at one end of the surface of the retainer 6, a step 062 for supporting the blade 2 is arranged at the other end of the surface of the retainer 6, a hinge hole 063 is arranged on the step 062, and through holes 064 are arranged at two sides of the end part of the retainer 6, which is positioned outside the concave surface 061; the hinge shaft 021 of the blade 2 extends out of the hinge hole 063, a screw is arranged in the through hole 064, and the pair of retainers 6 are fastened relatively and then are connected and fixed through the hinge shaft 021 and the screw.

Specifically, each retainer 6 is a concave shell with a U-shaped structure, the surface of the open end of the U-shaped structure of the retainer 6 is a concave surface 061, the surface of the closed end of the U-shaped structure is a step 062, and the surfaces of the hinged shafts 021 of the pair of blades 2, which extend out of the retainer 6 after passing through the hinged holes 063, are limited in the shearing surface direction of the blades 2 by axial limiting and fixing of nuts. The pair of through holes 064 are arranged outside the open end of the shell, after the upper and lower retainers 6 are buckled, screw nuts are penetrated in the through holes 064 at the rear end of the retainers 6 to be restrained, and nuts are arranged at two ends of the hinge shaft 021 of the hinge hole 063 at the front end of the retainers 6 to be restrained, so that the upper and lower retainers are restrained into a whole, and the upper and lower retainers are buckled with each other to be restrained into a cavity shell. The pair of swing teeth 032 are meshed with the bevel teeth 031 and then are arranged in the cavity shell, and the cavity shell enables the pair of swing teeth 032 inside not to drive the pair of swing teeth 032 to jump up and down under the condition that the blade 2 is temporarily clamped.

Further, the pair of retainers 6 are fastened up and down to form a hollow shell, the fastened retainers are embedded in the end part of the housing 1, one end part of each retainer 6 extends into the housing 1 and is wrapped by the housing 1, and the other end part of each retainer 6 extends out of the housing 1. The pair of swing teeth 032 are arranged in the concave surfaces 061 of the pair of retainers 6.

Specifically, because the end of the blade 2 and the upper and lower surfaces of the swinging teeth 032 are limited in the retainer 6, the shell body buckled by the pair of retainers 6 is fixedly arranged at the end of the shell 1 at the transverse side, one side end of the retainer 6 wrapping the limiting swinging teeth 032 is embedded in the shell 1, the pair of swinging teeth 032 are embedded in the concave surface 061 of the retainer 6, the tooth surfaces of the umbrella teeth 031 are meshed in the middle of the pair of swinging teeth 032, and the upper and lower meshing parts of the tooth surface ends of the pair of swinging teeth 032 and the umbrella teeth 031 and the hinged part of the rear ends of the swinging teeth 032 and the blade 2 are arranged in the retainer 6, so that the retainer 6 wraps and limits the teeth. After the pair of retainers 6 are buckled up and down, clearance fit is formed between the outer surfaces of the swing teeth 032 and the concave surface 061, so that the swing teeth are prevented from being blocked by friction on the surfaces of the retainers in the swing process.

Further, a decelerator 041 is arranged at the end part of the driving motor 4, and the decelerator 041 drives the umbrella teeth 031 to rotate; the end parts of the pair of retainers 6 extending into the casing 1 and the end parts of the speed reducer 041 are mutually nested and connected into a whole.

Specifically, the reducer 041 is a gear reducer, an input end of the reducer 041 is in driving connection with a driving motor 4, an output end of the reducer 041 is in driving connection with an input shaft of the bevel gear 031, connecting holes are formed in two sides of a reducer shell end of the reducer 041, an outwards extending flange is further arranged at the reducer shell end, and arc grooves are formed in the reducer shell end between the connecting holes. The arc surfaces are matched with the arc grooves between the ends of the through holes 064 of the retainer 6, the arc surfaces of the retainer 6 are provided with the notches 065 which are matched with the flanges on the speed reduction shell, when the ends of the retainer 6 are buckled at the ends of the speed reduction shell, the arc surfaces of the retainer 6 are in fit with the arc grooves of the speed reduction shell, the flanges of the speed reduction shell are simultaneously embedded in the notches 065 of the retainer 6, and the through holes 064 of the retainer 6 are mutually communicated with the connecting holes at the speed reduction shell end of the speed reducer 041 and then are fastened through bolts and nuts. The shell end after the buckling of the pair of retainers 6 is fixedly connected with the end of the reduction gearbox into a whole, so that the retainers 6 can better limit and fix the umbrella teeth 031 and the swing teeth 032 in the pair of retainers 6.

Further, the pair of swing teeth 032 are detachably connected with the pair of blades 2, so that the swing teeth 032 and the blades 2 are convenient to replace, when the shearing effect of the blades 2 is poor, the shell 1 is only required to be opened, the blades 2 are detached to replace the blades 2 again, and the shell 1 is installed, so that other components are not affected.

As a preferable way of detachable connection, a bump 0321 is provided on the surface of the swing tooth 032, a groove 022 matching with the bump 0321 is provided at the end of the blade 2, and the bump is embedded in the groove 022 to make the blade 2 and the swing tooth 032 fit and connect. The detachable connection is realized through matching of the convex blocks 0321 and the grooves 022, and meanwhile, the blade 2 can realize synchronous motion effect without swing delay when the swing teeth 032 swing.

The detachable connection may also be selected from: the end part of the swing tooth 032 is provided with a clamping groove, the end part of the blade 2 is provided with a protrusion matched with the clamping groove, and the protrusion is embedded in the clamping groove to enable the blade 2 to be connected with the end part of the swing tooth 032.

Further, on the basis of the detachable connection: a threaded hole is formed in the swing tooth 032, a screw hole is formed in the blade 2, and the swing tooth 032 is connected with the blade 2 through a screw. After the screw holes are mutually communicated, the swing tooth 032 is connected with the blade 2 through the screw, so that the fixed connection effect can be further improved. The screw hole and screw hole may be disposed at the positions of the protrusion 0321 and the groove 022 or the positions of the protrusion and the clamping groove, or may be the positions of the swing tooth 032 and the blade 2, so long as the engagement of the swing tooth 032 and the shearing movement of the blade 2 are not affected.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The utility model provides a little swing arm electric shears, includes shell (1), the tip of shell (1) is provided with a pair of articulated blade (2), the inside of shell (1) is provided with and is used for the drive assembly that blade (2) mutually open and shut, drive assembly include gear assembly (3) and driving motor (4), gear assembly (3) include bevel gear (031) and with a pair of pendulum tooth (032) of bevel gear (031) relative both sides meshing, a pair of pendulum tooth (032) are connected with a pair of blade (2), bevel gear (031) with driving motor (4) drive connection, driving motor (4) be connected with hall sensor (5) through switch controller electricity, hall sensor (5) include hall plate (051) and magnet (052), its characterized in that: two opposite outer sides of the pair of swing teeth (032) are respectively provided with a retainer (6), wherein the Hall plate (051) is arranged outside one retainer (6), a magnet (052) which is mutually induced with the Hall plate (051) is arranged at the lower part of one swing tooth (032) close to the Hall plate (051), the pair of retainers (6) are arranged at the end part of the shell (1) to fasten the upper limit and the lower limit of the pair of swing teeth (032), and the hinge shafts (021) of the pair of blades (2) penetrate through the upper surface and the lower surface of the retainer (6) at the same time and are limited by the retainer (6) in the axial direction; the surface of one end part of the swing tooth (032) is a tooth surface, and the surface of the other end of the swing tooth is provided with a step (062); the pair of pendulum teeth (032) comprises an upper pendulum tooth and a lower pendulum tooth, the upper pendulum tooth and the lower pendulum tooth are respectively arranged on the upper side and the lower side of the umbrella tooth (031) and are meshed with the umbrella tooth (031) up and down, and two step (062) ends of the upper pendulum tooth and the lower pendulum tooth are connected with a pair of hinged blades (2).

2. The small swing arm electric shears according to claim 1, wherein: a concave surface (061) is arranged at one end of the surface of the retainer (6), a step (062) for supporting the blade (2) is arranged at the other end of the surface of the retainer (6), a hinge hole (063) is formed in the step (062), and through holes (064) are formed in two sides of the end part, located outside the concave surface (061), of the retainer (6); the hinge shaft (021) of the blade (2) extends out of the hinge hole (063), a screw is arranged in the through hole (064), and a pair of retainers (6) are connected and fixed through the hinge shaft (021) and the screw after being buckled relatively.

3. The small swing arm electric shears according to claim 2, wherein: a pair of retainers (6) are embedded at the end part of the shell (1) after being buckled up and down, one part of each retainer (6) stretches into the shell (1) and is wrapped by the shell (1), and a pair of swing teeth (032) are respectively arranged in the concave surface (061).

4. A small swing arm electric shears according to claim 3, wherein: a speed reducer (041) is arranged at the end part of the driving motor (4), and the speed reducer (041) drives the bevel gear (031) to rotate; the end parts of a pair of retainers (6) extending into the shell (1) and the end parts of the speed reducer (041) are mutually nested and connected into a whole.

5. The small swing electric shears according to claim 4, wherein: a pair of the swing teeth (032) are detachably connected with a pair of the blades (2).

6. The small swing electric shears according to claim 5, wherein: the surface of the swing tooth (032) is provided with a convex block (0321), the end part of the blade (2) is provided with a groove (022) matched with the convex block (0321), and the convex block (0321) is embedded in the groove (022) so that the blade (2) is connected with the swing tooth (032).

7. The small swing electric shears according to claim 5, wherein: the end part of the swing tooth (032) is provided with a clamping groove, the end part of the blade (2) is provided with a bulge matched with the clamping groove, and the bulge is embedded in the clamping groove to connect the blade (2) with the swing tooth (032).

8. The small swing arm electric shears according to claim 6, wherein: the swing tooth (032) is provided with a screw hole, the blade (2) is provided with a screw hole, and the swing tooth (032) is connected with the blade (2) through a screw.