CN216906041U - Pruning machine - Google Patents

Abstract

The utility model provides a pruner, comprising: a housing; a battery pack at least partially attached to the chassis; a blade assembly; the motor is arranged in the shell and drives the cutter bar assembly to reciprocate; the motor is an outer rotor motor, and the outer diameter of the motor is within the range of 20 mm-40 mm. The utility model has the advantages of small volume, light weight and long endurance time, and the operator can not feel tired even in long-time use.

Description

Pruning machine

Technical Field

The utility model relates to the field of gardening tools, in particular to a pruning machine.

Background

As a kind of gardening tool, a pruner is generally used when pruning a garden. In order to perform routine garden pruning tasks, the user must hold the handle of the pruner and cut at a position above the sight level, which is tiresome to maintain the pruner in the held position. However, the existing pruners in the market have large volume and weight and are heavy, so that operators are easy to fatigue.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of larger size and weight of the existing pruners in the market, the utility model provides a pruner which can comprise the following technical scheme:

a pruner, comprising:

a housing;

a battery pack at least partially attached to the chassis;

a blade assembly;

the motor is arranged in the shell and drives the cutter bar assembly to reciprocate;

the motor is an outer rotor motor, and the outer diameter of the outer rotor motor is within the range of 20 mm-40 mm.

In an embodiment of the present invention, the pruner includes a first handle and a second handle, and the first handle is pivotally connected to the housing.

In an embodiment of the present invention, the outer rotor motor is an outer rotor brushless motor, and a weight of the outer rotor brushless motor is in a range of 90g to 260 g.

In an embodiment of the utility model, the volume of the outer rotor brushless motor is 600mm³～2000mm³Within the range of (1).

In an embodiment of the present invention, the battery pack and the outer rotor brushless motor are located between the first handle and the second handle.

In an embodiment of the utility model, the pivot axis of the first handle is arranged obliquely with respect to the longitudinal direction of the pruner.

In an embodiment of the present invention, the pruner further includes a button switch, the button switch is installed on the first handle, and the button switch controls the operation of the outer rotor motor.

In an embodiment of the present invention, an output shaft of the external rotor motor is connected to a driving gear, and the driving gear is connected to the output shaft of the external rotor motor through a shaft sleeve.

In an embodiment of the present invention, the pruner further includes a first crank link assembly and a second crank link assembly, wherein the blade assembly is mounted on the first crank link assembly and the second crank link assembly, and the motor drives the first crank link assembly and the second crank link assembly to move.

In an embodiment of the utility model, the blade bar assembly comprises a mounting plate and blades, and the blades are fixedly mounted on two sides of the mounting plate.

The utility model provides a pruner which has the advantages of small volume, light weight, low power consumption and long endurance time. Meanwhile, the operator does not feel fatigue even in long-time use, and the performance of the whole pruner can be enhanced from multiple aspects of performance, so that the operation and use feeling of the user are increased.

Drawings

FIG. 1 is a schematic view of the construction of a pruner according to the present invention;

FIG. 2 is a schematic view of the connection of the rotary gears of the present invention;

FIG. 3 is an enlarged schematic view taken at A in FIG. 2;

FIG. 4 is a schematic view of a first crank link assembly coupling of the present invention;

FIG. 5 is an enlarged view of the point B in FIG. 4;

FIG. 6 is an enlarged view of the point C in FIG. 4;

FIG. 7 is a schematic view of the structure of the bearing groove of the present invention;

in the figure: 1. a rotating gear; 2. a rotating shaft; 3. a drive shaft; 4. positioning the bearing; 5. a housing; 6. a gear case;

7. a bearing groove; 8. mounting screws;

10. a motor drive assembly; 11. a motor; 12. a shaft sleeve; 13. a drive gear;

20. a first crank link assembly; 21. a first drive disk; 22. a first drive bearing; 23. a first link;

24. a first connecting column;

30. a second crank link assembly; 31. a second drive disc; 32. a second drive bearing; 33. a second link;

34. a second connecting column;

40. a blade assembly; 41. mounting a plate; 42. a blade;

51. a first handle; 52. a baffle plate; 53. a second handle; 54. a push button switch.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Referring to fig. 1 to 3 and fig. 5, fig. 1 is a schematic structural view of a pruner of the present invention, fig. 2 is a schematic connection view of a rotating gear of the present invention, and fig. 3 is an enlarged schematic view of a portion a in fig. 2. The utility model provides a pruning machine which can be applied to places such as golf courses, football fields, manholes, villas and courtyards, is used for trimming green turf and has the advantages of small volume, light weight, less power loss and long endurance time. In some embodiments, a pruner may comprise a housing 5, a battery pack, a blade assembly 40, and a motor 11, wherein the housing 5 may be a main body of the pruner, and the housing 5 may be used to house the battery pack, the blade assembly 40, and the motor 11. A battery pack may be partially attachably mounted in the housing 5, and a motor 11 may be mounted in the housing 5, the motor 11 driving the blade assembly 40 to reciprocate. The motor 11 may be an outer rotor motor, and the outer diameter of the outer rotor motor 11 may be in a range of 20mm to 40 mm. In some embodiments, the outer rotor motor may be an outer rotor brushless motor, the weight of the outer rotor brushless motor may be in a range of 90g to 260g, and the volume of the outer rotor brushless motor may be 600mm³～2000mm³Within the range of (1).

Referring to fig. 1 to 3, in some embodiments, a pruner may further include a motor driving assembly 10, a rotating gear 1, a rotating shaft 2, a driving shaft 3, a first crank link assembly 20, and a second crank link assembly 30. The output end of the motor driving assembly 10 may be connected to the rotating gear 1, and a connection position between the motor driving assembly 10 and the rotating gear 1 is not limited, in some embodiments, the output end of the motor driving assembly 10 may be coaxially connected to the rotating gear 1, and the output end of the motor driving assembly 10 may be connected to the rotating gear 1 in a gear engagement manner, for example, the output end of the motor driving assembly 10 may be connected to the rotating gear 1 in a gear engagement manner. The rotating gear 1 can be fixedly connected with a rotating shaft 2, the rotating shaft 2 can be positioned at the central position of the rotating gear 1, and the rotating shaft 2 and the rotating gear 1 can be coaxially arranged. The driving shaft 3 can be fixedly connected to the rotating gear 1, and the specific installation position of the driving shaft 3 on the rotating gear 1 is not limited, wherein the positions of the driving shaft 3 and the rotating shaft 2 are mutually avoided, and the axes of the driving shaft 3 and the rotating shaft 2 can be mutually parallel. The rotating shaft 2 can be connected with the first crank connecting rod assembly 20, and the rotating shaft 2 can drive the first crank connecting rod assembly 20 to act. The driving shaft 3 may be connected to the second crank connecting rod assembly 30, and the driving shaft 3 may drive the second crank connecting rod assembly 30. The blade bar assemblies 40 may be mounted on the first and second crank link assemblies 20 and 30, and the moving paths of the blade bar assemblies 40 mounted on the first and second crank link assemblies 20 and 30 may be parallel to each other.

Referring to fig. 1 to 3, the operation process of the pruner can be as follows, firstly, the motor driving assembly 10 can drive the rotating gear 1 to rotate, then, the rotating gear 1 can drive the rotating shaft 2 and the driving shaft 3 to rotate, secondly, the rotating shaft 2 can drive the first crank connecting rod assembly 20 to rotate, then, the driving shaft 3 can drive the second crank connecting rod assembly 30 to rotate, and finally, the first crank connecting rod assembly 20 and the second crank connecting rod assembly 30 can drive the cutter assembly 40 to move. The moving paths of the cutter bar assemblies 40 arranged on the first crank connecting rod assembly 20 and the second crank connecting rod assembly 30 can be parallel to each other, the pruning efficiency of the pruning machine is improved by arranging the two groups of cutter bar assemblies 40, and the power driving ends of the two groups of crank connecting rod assemblies can be driven by the same rotating gear 1, so that the moving synchronism of the cutter bar assemblies 40 is kept.

Referring to fig. 3 to 5, fig. 4 is a schematic connection diagram of a first crank link assembly according to the present invention, and fig. 5 is an enlarged schematic diagram of a portion B in fig. 4. The specific structure of the motor driving assembly 10 is not limited, and in some embodiments, the motor driving assembly 10 may include a motor 11, a shaft sleeve 12, and a driving gear 13, wherein the shaft sleeve 12 may be connected to an output end of the motor 11, the driving gear 13 may be connected to the shaft sleeve 12, the driving gear 13 may be fixedly connected to a lowermost end of the shaft sleeve 13, and the driving gear 13 may be connected to the rotation gear 1. The rotation of the motor 11 can drive the shaft sleeve 12 and the driving gear 13 to rotate, and the rotation of the driving gear 13 can drive the rotating gear 1 to rotate.

Referring to fig. 3, the specific connection relationship of the rotating gear 1 is not limited, and in some embodiments, the rotating gear 1 may be fixedly connected with a rotating shaft 2, and the rotating shaft 2 may be penetratingly connected to the rotating gear 1. The rotating gear 1 can be fixedly connected with a driving shaft 3, and the driving shaft 3 can be connected to the rotating gear 1 in a penetrating way. The rotating gear 1 may be provided with heat dissipation holes, the number of the heat dissipation holes is not limited, in some embodiments, the number of the heat dissipation holes may be at least three, for example, the number of the heat dissipation holes may be six, and the heat dissipation holes may be uniformly distributed along the center of the circle of the rotating gear 1. The specific shape of the heat dissipation holes is not limited, and in some embodiments, the heat dissipation holes may be circular, rectangular, or elliptical, for example, the heat dissipation holes may be circular. The specific positions of the heat dissipation holes are not limited, and in some embodiments, the heat dissipation holes may be located at the edge of the rotating gear 1, a plurality of heat dissipation holes may form a virtual circle, the rotating shaft 2 and the driving shaft 3 may be located in the virtual circle, and the heat dissipation holes may dissipate heat generated by the motor 11 during the rotation process.

Referring to fig. 5, the specific structure of the first crank link assembly 20 is not limited, in some embodiments, the first crank link assembly 20 may include a first driving disk 21, a first driving bearing 22, a first link 23 and a first connecting column 24, the driving shaft 3 may be connected to the first driving disk 21, the specific relationship between the driving shaft 3 and the first driving disk 21 is not limited, in some embodiments, the driving shaft 3 may penetrate the first driving disk 21, and the axis of the driving shaft 3 may be parallel to and not collinear with the axis of the first driving disk 21. The first drive disk 21 may have a first link 23 connected thereto, the first link 23 may have a first connector post 24 connected thereto, and the first connector post 24 may have a blade assembly 40 connected thereto. In some embodiments, the first link 23 may be formed with a first link hole, the first drive disc 21 may be disposed in the first link hole, a first drive bearing 22 may be disposed between the first link 23 and the first drive disc 21, the first drive bearing 22 may be disposed in the first link hole, and the first drive bearing 22 may be fixedly connected to the first drive disc 21 and the first link 23, respectively. Firstly, the rotation of the driving shaft 3 can drive the rotation of the first driving disc 21, then the rotation of the first driving disc 21 can drive the rotation of the first driving bearing 22, secondly, the rotation of the first driving bearing 22 can drive the rotation of the first connecting rod 23, then, the rotation of the first connecting rod 23 can drive the rotation of the first connecting column 24, and finally, the rotation of the first connecting column 24 can drive the movement of the blade assembly 40, and the movement of the blade assembly 40 can trim the lawn.

Referring to fig. 5, the specific structure of the second crank link assembly 30 is not limited, in some embodiments, the second crank link assembly 30 may include a second driving disk 31, a second driving bearing 32, a second link 33 and a second connecting post 34, the rotating shaft 2 may be connected to the second driving disk 31, the specific relationship between the rotating shaft 2 and the second driving disk 31 is not limited, in some embodiments, the rotating shaft 2 may penetrate through the second driving disk 31, and the axis of the rotating shaft 2 may be parallel to and not collinear with the axis of the second driving disk 31. A second link 33 may be connected to the second drive disk 31, a second connecting post 34 may be connected to the second link 33, and a blade assembly 40 may be connected to the second connecting post 34. In some embodiments, the second link 33 may be formed with a second link hole, the second drive disc 31 may be disposed in the second link hole, a second drive bearing 32 may be disposed between the second link 33 and the second drive disc 31, the second drive bearing 32 may be disposed in the second link hole, and the second drive bearing 32 may be fixedly connected to the second drive disc 31 and the second link 33, respectively. Firstly, the rotation shaft 2 rotates to drive the second driving disc 31 to rotate, then, the second driving disc 31 rotates to drive the second driving bearing 32 to rotate, secondly, the second driving bearing 32 rotates to drive the second connecting rod 33 to rotate, then, the second connecting rod 33 rotates to drive the second connecting column 34 to rotate, then, the second connecting column 34 rotates to drive the blade assembly 40 to move, and the blade assembly 40 moves to trim the lawn.

Referring to fig. 3 to 5, wherein the specific connection position relationship between the first crank link assembly 20 and the second crank link assembly 30 is not limited, in some embodiments, the first crank link assembly 20 may be located between the second crank link assembly 30 and the rotating gear 1, the rotating shaft 2 may penetrate through the first driving disk 21 and the second driving disk 31, the axis of the rotating shaft 2 may be parallel to the axes of the first driving disk 21 and the second driving disk 31, and the axis of the rotating shaft 2 and the axes of the first driving disk 21 and the second driving disk 31 are not collinear. The positions of the blade bar assemblies 40 mounted on the first crank link assembly 20 and the second crank link assembly 30 are not limited, and the blade bar assemblies 40 may be located between the first crank link assembly 20 and the second crank link assembly 30. The first drive disk 21 may be in contact with the second link 33 and the first link 23 and the second link 33 may be positioned parallel to each other, and the first link 23 and the second link 33 may be further positioned parallel to each other by contacting the first drive disk 21 with the second link 33 to maintain the first link 23 and the second link 33 in a parallel relationship. The rotation gear 1 rotates to drive the rotation shaft 2 and the driving shaft 3 to rotate, the rotation shaft 2 rotates to drive the second driving disc 31 to rotate, the second driving disc 31 rotates to drive the blade assembly 40 connected to the second connecting rod 33 to move, the driving shaft 3 rotates to drive the first driving disc 21 to rotate, and the first driving disc 21 rotates to drive the blade assembly 40 connected to the first connecting rod 23 to move.

Referring to fig. 4 and 6, the specific structure of the blade assembly 40 is not limited, and in some embodiments, the blade assembly 40 may include a mounting plate 41 and a blade 42, the mounting plate 41 may be a main body of the blade assembly 40, the blade 42 is fixedly mounted on the mounting plate 41, and the blade 42 may be mounted on two sidewalls of the mounting plate 41.

Referring to fig. 1 and 7, in some embodiments, the pruner further comprises a positioning bearing 4, a gear box 6, and a bearing groove 7, wherein the first crank link assembly 20, the second crank link assembly 30, the rotating gear 1, the rotating shaft 2, and the driving shaft 3 can be located in the gear box 6. Wherein, the outer wall of the top of axis of rotation 2 can be equipped with locating bearing 4 by the cover, the outer wall of the bottom of axis of rotation 2 can be equipped with locating bearing 4 by the cover, the outer wall position department of gear box 6 can correspond is provided with bearing groove 7, bearing groove 7 can be used for holding locating bearing 4, bearing groove 7 can play to locating bearing 4 and hold spacing effect, bearing groove 7 is with 4 spacing effects of locating bearing, can further guarantee that axis of rotation 2 uses two bearing groove 7 lines as the axis of rotation, the skew of position can not take place at the pivoted in-process for axis of rotation 2 promptly, further assurance the stability of first crank link assembly 20 and the motion of second crank link assembly 30.

Referring to fig. 1, in some embodiments, the pruner further includes a housing 5, a mounting screw 8, a first handle 51, a baffle 52, a second handle 53 and a push-button switch 54, wherein the first handle 51 is mountable at the front portion of the housing 5, the second handle 53 is mountable at the rear portion of the housing 5, the first handle 51 is pivotally connected to the housing, a pivot axis of the first handle 51 is disposed obliquely with respect to the longitudinal direction of the pruner, and the battery pack and the external rotor brushless motor can be located between the first handle 51 and the second handle 53. The housing 5 may be positioned above the gear box 6, and the mounting screws 8 may be connected to the housing 5 through the gear box 6. The motor 11 of the motor driving assembly 10 can be installed in the housing 5, the specific installation manner of the motor 11 on the housing 5 is not limited, and in some embodiments, the motor 11 can be connected to the housing 5 by the installation screw 8. The outer wall of the end of the gear box 6 far away from the blade assembly 40 can be fixedly connected with a second handle 53, and the housing 5 can be connected with a first handle 51. The specific mounting position of the first handle 51 is not limited, and in some embodiments, the first handle 51 may be disposed on a side of the housing 5 close to the second handle 53, and the first handle 51 may be disposed on a side of the housing 5 away from the second handle 53, for example, the first handle 51 may be disposed on a side of the housing 5 away from the second handle 53, and by disposing the first handle 51 on a side of the housing 5 away from the second handle 53, the holding distance of the user holding the pruner in both hands can be increased.

Referring to fig. 1, in some embodiments, the second handle 53 may be provided with a button switch 54, the specific position of the button switch 54 on the second handle 53 is not limited, and the button switch 54 may be provided at a top position of the second handle 53, wherein the first handle 51 may intersect with the plane of the blade assembly 40, the first handle 51 may form an angle of 60-75 degrees with the blade assembly 40, and the plane of the second handle 53 may be in a perpendicular relationship with the plane of the blade assembly 40 and the plane of the first handle 51. Wherein the housing 5 may comprise a two-part housing, which may be connected by mounting screws 8. The casing 5 may be provided with holes, the specific positions of the holes are not limited, in some embodiments, the holes may be located on two side walls of the casing 5, and the heat dissipation effect of the pruning machine may be increased by providing the holes on the casing 5. The specific materials of the first handle 51, the baffle plate 52, the second handle 53, the gear box 6 and the housing 5 are not limited, in some embodiments, the first handle 51, the baffle plate 52, the second handle 53, the gear box 6 and the housing 5 can be made of PVC (polyvinyl chloride) materials, and the first handle 51, the baffle plate 52, the second handle 53, the gear box 6 and the housing 5 are made of polyvinyl chloride materials, so that the weight of the whole pruner of the pruner can be further reduced, an operator does not feel tired even after using the pruner for a long time, and the pruning efficiency of the pruner for vegetation in gardens is improved.

Referring to fig. 1 to 7, in some embodiments, the pruner may be symmetrically disposed, for example, the pruner may be symmetrical with respect to the blade assembly 40, that is, the pruner may be symmetrical with respect to the straight line where the mounting plate 41 is located, and at this time, the first crank link assembly 20 and the second crank link assembly 30 may be symmetrically disposed, and since the first crank link assembly 20 includes the first driving disk 21 and the second crank link assembly 30 includes the second driving disk 31, that is, at this time, the first driving disk 21 and the second driving disk 31 may be symmetrically disposed with respect to the straight line where the mounting plate 41 is located, by symmetrically disposing the pruner, the integrity of the complete pruner is increased, so that the pruner has symmetrical aesthetic feeling, and simultaneously has the characteristic of symmetrical and uniform distribution of weight, and the user can improve the operational feeling when the pruner prunes vegetation.

In conclusion, the utility model provides a pruner which has the advantages of small volume, light weight and low power consumption, and meanwhile, has the advantage of long endurance time. Meanwhile, the operator does not feel fatigue even in long-time use, and the performance of the whole pruner can be enhanced from multiple aspects of performance, so that the operation and use feeling of the user are increased.

The above description is only a preferred embodiment of the present application and the explanation of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.

Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.

Claims (10)

1. A pruner, comprising:

a housing;

a battery pack at least partially attached to the chassis;

a blade assembly;

the motor is arranged in the shell and drives the cutter bar assembly to reciprocate;

the motor is an outer rotor motor, and the outer diameter of the outer rotor motor is within the range of 20 mm-40 mm.

2. The pruner of claim 1, wherein the pruner comprises a first handle and a second handle, the first handle being pivotably connected to the housing.

3. The pruner of claim 2, wherein the outer rotor motor is an outer rotor brushless motor having a weight in the range of 90g to 260 g.

4. The pruner of claim 3, wherein the volume of the outer rotor brushless motor is in the range of 600mm 3-2000 mm 3.

5. The pruner of claim 3, wherein the battery pack and the outer rotor brushless motor are located between the first handle and the second handle.

6. The pruner of claim 2, wherein the pivot axis of the first handle is disposed obliquely with respect to the longitudinal direction of the pruner.

7. The pruner of claim 2, further comprising a push button switch mounted on the first handle, the push button switch controlling the operation of the external rotor motor.

8. The pruner of claim 1, wherein the output shaft of the external rotor motor is connected with a driving gear, and the driving gear is connected with the output shaft of the external rotor motor through a shaft sleeve.

9. The pruner of claim 1, further comprising:

a first crank link assembly; and

a second crank link assembly;

the blade assembly is arranged on the first crank connecting rod assembly and the second crank connecting rod assembly, and the outer rotor motor drives the first crank connecting rod assembly and the second crank connecting rod assembly to move.

10. The pruner of claim 1, wherein the blade assembly comprises:

mounting a plate; and

and the blades are fixedly arranged on two sides of the mounting plate.

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