CN206481650U - Electric garden branch shears - Google Patents

Abstract

The utility model discloses an electric garden branch shears comprising a shell, a knife holder, a fixed blade, a rotating blade, and an electric rotating drive device, wherein the knife holder is arranged at one end of the shell, the fixed blade is fixed on the knife holder, and the middle part of the rotating blade is rotatably arranged on the knife holder or the fixed blade, and the rotating drive device can drive the rotating blade to rotate relative to the fixed blade to realize shearing or opening action, and there is no need to use manpower to complete the shearing action, which greatly reduces the labor intensity of branch pruning during gardening operations, improves work efficiency, and reduces labor costs; further, the rotating drive device realizes the transmission of intersecting axes through the bevel gear mechanism, so that the structure is more compact, the external volume and weight of the branch shears are greatly reduced, the carrying is easy, the operation is more convenient, the labor intensity is lower, and the transmission ratio is large, the shearing force is large, and the application range is wider.

Description

Electric garden branch shears

technical field

The utility model relates to the field of garden tools, in particular to an electric garden branch scissors.

Background technique

Branch scissors are often used for pruning garden branches. It usually completes the cutting action by manually operating the handle. The structure of the connecting rod mechanism is becoming more and more complicated. Although the intensity of labor is reduced to a certain extent, in the actual use process, the workload of pruning the garden is huge. Even if it is an additional labor-saving structure, it is still a huge amount of labor. Work, work efficiency is low, and labor cost is high.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides an electric garden branch shears.

The technical scheme that the utility model solves its technical problem adopts is:

An electric garden branch scissors, comprising a branch scissors body, the branch scissors body includes a housing, a knife holder, a fixed blade, a rotating blade and an electric rotating drive device, the knife holder is arranged at one end of the housing, and the fixed blade Fixed on the knife holder, the middle part of the rotating blade is rotated on the knife holder or the fixed blade, and the rotating drive device can drive the rotating blade to rotate relative to the fixed blade to realize cutting or opening;

The rotary driving device includes a motor output mechanism and a bevel gear transmission mechanism. The bevel gear transmission mechanism includes a driving bevel gear and a driven sector bevel gear. The motor output mechanism is arranged along the length direction of the housing and connected with the driving bevel gear. , the driven sector bevel gear is arranged at one end of the rotating blade and meshed with the driven sector bevel gear.

The middle part of the rotating blade is rotatably arranged on the fixed blade through a rotating shaft screw.

The shaft screw passes through the center of rotation of the driven sector bevel gear and the middle of the rotating blade in turn and is connected to the fixed blade. The position of the driven sector bevel gear deviated from the center of rotation is fixed to one end of the rotating blade by a fixing screw.

The end of the fixing screw is exposed through the rotating blade, and the fixing blade is provided with an arc-shaped limiting groove that can be inserted into the end of the fixing screw, and the rotating edge is limited by the cooperation of the arc-shaped limiting groove and the end of the fixing screw. range of rotation angles.

The motor output mechanism includes a motor and a planetary gear reducer connected to the output shaft of the motor. The front end of the planetary gear reducer is fixed on the tool holder, and the output shaft of the planetary gear reducer is connected to the driving bevel gear.

The branch shears body also includes a power supply and a motor control circuit connected to the power supply. The power supply includes a power switch, and the motor control circuit includes a motor switch. Both the power switch and the motor switch are contact-type the push switch.

The motor control circuit is equipped with a rotation angle control device, and the rotation angle control device includes an induction circuit board arranged on the side of the driven sector bevel gear, and the induction circuit board is provided with several position sensors corresponding to the driven sector bevel gear.

The position sensor is an infrared sensor, and the driven sector bevel gear is provided with an induction hole corresponding to the infrared sensor.

The power supply is a storage battery, the storage battery is equipped with a charging circuit, and the housing is provided with a charging interface connected to the charging circuit.

A state light is arranged on the housing, and the state light is connected with the motor control circuit.

The beneficial effects of the utility model are: an electric garden branch scissors, including a branch scissors body, the branch scissors body includes a housing, a knife holder, a fixed blade, a rotating blade, and an electric rotating drive device, the knife holder is set At one end of the housing, the fixed blade is fixed on the knife holder, and the middle part of the rotating blade is rotated on the knife holder or the fixed blade, and the rotating drive device can drive the rotating blade to rotate relative to the fixed blade to realize cutting or opening , no need to use manpower to complete the cutting action, which greatly reduces the labor intensity of branch pruning during gardening operations, improves work efficiency, and reduces labor costs.

Further, the rotation driving device includes a motor output mechanism and a bevel gear transmission mechanism, the bevel gear transmission mechanism includes a driving bevel gear and a driven sector bevel gear, and the motor output mechanism is arranged along the length direction of the housing and connected to the driving bevel Gear connection, the driven sector bevel gear is set at one end of the rotating blade and meshed with the driven sector bevel gear, the transmission of the intersecting shafts is realized through the bevel gear mechanism, which makes the structure more compact and greatly reduces the damage of branch shears. The appearance volume and weight are easy to carry, the operation is more convenient, the labor intensity is lower, and the transmission ratio is large, the shearing force is large, and the suitable range is wider.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the exploded schematic view of the utility model;

Fig. 3 is the structural representation of transmission part of the present utility model;

Fig. 4 is an exploded schematic diagram of the transmission part of the utility model.

detailed description

Referring to Fig. 1 to Fig. 4, Fig. 1 to Fig. 4 are structural schematic diagrams of a specific embodiment of the present invention, as shown in the figure, an electric garden branch scissors includes a branch scissors body, and the branch scissors body includes a housing 1 , knife rest 2, fixed blade 3, rotating blade 4 and electric rotating drive device, said knife rest 2 is arranged on one end of housing 1, said fixed blade 3 is fixed on the knife rest 2, and the middle part of said rotating blade 4 rotates Installed on the tool holder 2 or the fixed blade 3, the rotating drive device can drive the rotating blade 4 to rotate relative to the fixed blade 3 to achieve shearing or opening action, without using manpower to complete the shearing action, which greatly reduces the number of branches during gardening operations. The labor intensity of pruning improves work efficiency and reduces labor costs.

Preferably, the rotation driving device includes a motor output mechanism and a bevel gear transmission mechanism, the bevel gear transmission mechanism includes a driving bevel gear 51, a driven sector bevel gear 52, and the motor output mechanism is arranged along the length direction of the housing 1 And connected with the driving bevel gear 51, the driven sector bevel gear 52 is arranged at one end of the rotating blade 4 and meshed with the driven sector bevel gear 52, the transmission of the intersecting shafts is realized through this structure, so that the motor output mechanism can move along the housing 1 Arranged in the length direction, the structure is more compact, the transmission mechanism is simplified, the shape and weight of the branch shears are greatly reduced, it is easy to carry, the operation is more convenient, the labor intensity is lower, and the transmission ratio is large, and the shearing force is large , suitable for a wider range.

In the specific implementation process, the worm gear mechanism can be used to replace the bevel gear transmission mechanism. The worm gear mechanism can realize the transmission of the interlaced shafts, and can also realize the function of the motor output mechanism arranged along the length direction of the housing 1 in the utility model, but the worm gear The production and processing of the worm mechanism is difficult, the manufacturing and maintenance costs are high, and the service life is not long. Although it can meet high-precision transmission, in the utility model, the transmission accuracy is not high, so the bevel gear transmission is preferably used to reduce costs. , The effect of simplifying the process, at the same time, because the worm gear mechanism realizes the transmission of the interlaced shafts, the volume of the mechanism is larger than that of the bevel gear transmission mechanism.

Preferably, in this embodiment, the middle part of the rotating blade 4 is rotated on the fixed blade 3 through a rotating shaft screw 41 cooperating with a fixing nut, and the rotating shaft screw 41 passes through the rotation center of the driven sector bevel gear 52 and The middle part of the rotating blade 4 is connected to the fixed blade 3 behind, and the driven sector bevel gear 52 is fixed on one end of the rotating blade 4 by a fixing screw 42 at a position deviated from the center of rotation to realize the synchronization between the rotating blade 4 and the driven sector bevel gear 52 turn.

Preferably, the end of the fixing screw 42 is exposed through the rotating blade 4, and the fixing blade 3 is provided with an arc-shaped limiting groove 31 that can be inserted into the end of the fixing screw 42. Through the arc-shaped limiting groove 31 and The cooperation of the ends of the fixing screws 42 limits the range of rotation angles of the rotating blade 4, prevents the excessive opening or closing of the rotating blade 4 and causes damage to the mechanism, and prevents the driving bevel gear 51 from moving out of the range of meshing with the driven sector bevel gear 52. cause the mechanism to fail.

Preferably, the motor output mechanism includes a motor 61 and a planetary gear reducer 62 connected to the output shaft of the motor 61, the front end of the planetary gear reducer 62 is fixed on the tool rest 2, and the output shaft of the planetary gear reducer 62 is connected to As for the driving bevel gear 51, by adopting the planetary gear reducer 62, a high transmission ratio can be realized, the shearing force can be improved, and the volume of the reduction mechanism can be reduced at the same time.

Preferably, the branch shear body also includes a power supply and a motor control circuit connected to the power supply, the power supply includes a power switch 71, the motor control circuit includes a motor switch 72, the power switch 71 and the motor The switches 72 are all contact type push switches, and the power switch 71 and the motor switch 72 are arranged on the same side of the housing 1. In this embodiment, the power switch 71 and the motor switch 72 are preferably arranged on the housing 1 Below, when in use, the staff holds the branch shears body. It is necessary to press the power switch 71 first to switch on the power supply, and then press the motor switch 72, so that the motor 61 can work normally. 71 and motor switch 72 are selected as push-type contact switches, which will not act when there is no pressing by hand, so as to prevent false triggering and improve safety.

Preferably, the protective strip 11 corresponding to the motor switch 72 is also configured on the housing 1, and the protective strip 11 is protected outside the motor switch 72. Preferably, the protective strip 11 is annularly arranged on the outside of the motor switch 72, so as to facilitate the penetration of human hands. control, while preventing external objects from triggering the motor switch 72, improving safety.

Preferably, the motor control circuit is equipped with a rotation angle control device, the rotation angle control device includes an induction circuit board 73 arranged on the side of the driven sector bevel gear 52, and the induction circuit board 73 is provided with several The position sensor corresponding to the gear 52 realizes the rotation angle induction of the driven sector bevel gear 52 through the position sensor, and transmits the rotation angle induction to the motor control circuit to control the rotation of the motor 61 and prevent the motor from being overloaded at the extreme position.

Preferably, the position sensor is an infrared sensor, and the driven sector bevel gear 52 is provided with a sensing hole corresponding to the infrared sensor to sense the angle of the driven sector bevel gear 52. In addition, the position sensor can also It is a contact-type travel switch, which can also realize position sensing and control, and will not be described in detail here.

Preferably, the power supply is a storage battery, the storage battery is equipped with a charging circuit, and the housing 1 is provided with a charging interface 74 connected to the charging circuit, so as to facilitate outdoor carrying and use of the branch shears.

Preferably, the housing 1 is provided with a status light 75, which is connected to the motor control circuit to remind the operator of the working state of the motor. When the status light 75 is on, it reminds the operator that the motor is in an active state At this time, it is necessary to pay attention to the position of the cutting edge of the branch to avoid accidents.

The preferred implementation of the present utility model has been specifically described above. Of course, the present utility model can also adopt forms different from the above-mentioned embodiments, and those skilled in the art can make equivalent transformations or modifications without violating the spirit of the present invention. Corresponding changes should all belong to the protection scope of the present utility model.

Claims (10)

1. An electric garden branch scissors, comprising a branch scissors body, characterized in that: said branch scissors body comprises a housing (1), a knife rest (2), a fixed blade (3), a rotating blade (4) and an electric Rotating drive device, the knife rest (2) is arranged on one end of the housing (1), the fixed blade (3) is fixed on the knife rest (2), and the middle part of the rotating blade (4) is rotated and arranged on the knife rest ( 2) or on the fixed blade (3), the rotating drive device can drive the rotating blade (4) to rotate relative to the fixed blade (3) to achieve shearing or opening; The rotation driving device includes a motor output mechanism and a bevel gear transmission mechanism, the bevel gear transmission mechanism includes a driving bevel gear (51), a driven sector bevel gear (52), and the motor output mechanism is along the housing (1) It is arranged in the length direction and connected with the driving bevel gear (51), and the driven sector bevel gear (52) is arranged at one end of the rotating blade (4) and meshed with the driven sector bevel gear (52). 2. An electric garden branch shear according to claim 1, characterized in that: the middle part of the rotating blade (4) is rotated and arranged on the fixed blade (3) by a rotating shaft screw (41). 3. An electric garden branch shear according to claim 2, characterized in that: the shaft screw (41) passes through the rotation center of the driven sector-shaped bevel gear (52) and the middle part of the rotating blade (4) in sequence and then connects To the fixed blade (3), the driven sector bevel gear (52) is fixed on one end of the rotating blade (4) by a fixing screw (42) at a position deviated from the rotation center. 4. An electric garden branch shear according to claim 3, characterized in that: the end of the fixing screw (42) is exposed through the rotating blade (4), and the fixing blade (3) is provided with a The arc-shaped limiting groove (31) inserted into the end of the fixing screw (42) limits the rotation angle range of the rotating blade (4) through the cooperation of the arc-shaped limiting groove (31) and the end of the fixing screw (42). 5. A kind of electric garden branch shears according to claim 1, characterized in that: the motor output mechanism comprises a motor (61) and a planetary gear reducer (62) connected to the output shaft of the motor (61), the The front end of the planetary gear reducer (62) is fixed on the tool rest (2), and the output shaft of the planetary gear reducer (62) is connected to the driving bevel gear (51). 6. A kind of electric garden branch shears according to claim 1, characterized in that: the branch shears body also includes a power supply and a motor control circuit connected to the power supply, and the power supply includes a power switch (71) , the motor control circuit includes a motor switch (72), and the power switch (71) and the motor switch (72) are both contact type push switches. 7. An electric garden branch shear according to claim 6, characterized in that: the motor control circuit is equipped with a rotation angle control device, and the rotation angle control device includes an induction sensor arranged on the side of the driven sector bevel gear (52). A circuit board (73), the induction circuit board (73) is provided with a plurality of position sensors corresponding to the driven sector bevel gear (52). 8. An electric garden branch shear according to claim 7, characterized in that: the position sensor is an infrared sensor, and the driven sector bevel gear (52) is provided with a sensing hole corresponding to the infrared sensor. 9. An electric garden branch shear according to claim 6, characterized in that: the power supply is a storage battery, the storage battery is equipped with a charging circuit, and the housing (1) is provided with a charging interface (74). 10. The electric garden branch shears according to claim 6, characterized in that: the housing (1) is provided with a status light (75), and the status light (75) is connected to a motor control circuit.