CN219981614U - Saw wheel type branch sawing mechanism - Google Patents

Abstract

The utility model provides a saw wheel formula branch sawing mechanism, includes the saw wheel that is used for carrying out the branch sawing operation, the partial saw bit of saw wheel is arranged in the self-adaptation protective housing, be equipped with first clamp finger on the self-adaptation protective housing. The pruning mechanism is also provided with a second clamping finger, a clamping area is formed between the first clamping finger and the second clamping finger, and part of saw blade is exposed in the clamping area for executing pruning operation. The branch sawing mechanism is also provided with a torsion resetting piece, and the torsion resetting piece acts on the self-adaptive protective shell to enable the first clamp to point to the second clamp to be close. Compared with the prior art, the utility model has the following beneficial effects: the saw wheel is adopted to saw branches, the damage of parts is small, and compared with the traditional small-sized saw branch machine, the saw branch machine can cut branches with larger diameters.

Description

Saw wheel type branch sawing mechanism

Technical Field

The utility model belongs to the technical field of small-sized electric branch sawing machine equipment, and particularly relates to a saw wheel type branch sawing mechanism.

Background

The small-sized pruning machine is a tool widely applied to gardening pruning, and adopts a motor to drive scissors to realize pruning operation, and has the advantages of high efficiency, good pruning quality and the like compared with the traditional manual pruning tool, thereby becoming one of necessary tools for gardening workers. The existing small-sized pruning machine has the following problems: 1. generally, a double-blade bisection mode is adopted to ensure the pruning effect, and gaps among blades are smaller, so that the pruning machine cannot prune branches with larger diameters. 2. When the blade gap is fixed and the tree branch with smaller diameter is trimmed, the tree branch shakes more, so that people are easily injured, the trimming surface is uneven, and the damage to the blade is larger. 3. The blade protection shell is not generally equipped, and the blade is easy to collide and damage. 4. When the blade is replaced, a disassembly and assembly tool is needed, so that the replacement efficiency is low, and small parts such as screws are easy to lose.

Accordingly, the present utility model has been further designed and developed based on some of the above prior art.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the saw wheel type branch sawing mechanism, which adopts the saw wheel to saw branches, has small damage to parts and can cut branches with larger diameter compared with the traditional small-sized branch sawing machine.

In order to solve the technical problems, the utility model is solved by the following technical scheme.

The utility model provides a saw wheel formula branch sawing mechanism, includes the saw wheel that is used for carrying out the branch sawing operation, the partial saw bit of saw wheel is arranged in the self-adaptation protective housing, be equipped with first clamp finger on the self-adaptation protective housing. The pruning mechanism is also provided with a second clamping finger, a clamping area is formed between the first clamping finger and the second clamping finger, and part of saw blade is exposed in the clamping area for executing pruning operation. The branch sawing mechanism is also provided with a torsion resetting piece, and the torsion resetting piece acts on the self-adaptive protective shell to enable the first clamp to point to the second clamp to be close. The clamping area carries out self-adaptive adjustment according to the branch diameter of the clamped branch, and the self-adaptive protection shell resets under the help of the torsion resetting piece when the branch sawing is finished.

In a preferred embodiment, the pruning mechanism comprises a shell, one end of the shell is provided with a groove, and the second clamping finger is one side of the groove.

In a preferred embodiment, a mounting plate is mounted in the housing, and the mounting plate is provided with a first shaft fixedly connected with the saw wheel, a second shaft fixedly provided with a second gear, a third shaft fixedly provided with a third meshing piece and a fourth shaft fixedly provided with a fourth gear. The first shaft is arranged on the assembly plate, a first gear is arranged on the first shaft, and the first gear, the second gear, the third meshing piece and the fourth gear are sequentially meshed and connected for transmission. The pruning mechanism is driven to work by power from the fourth gear.

In a preferred embodiment, the pruning mechanism is assembled on a mounting seat, a driving motor for driving the pruning mechanism is arranged in the mounting seat, the driving motor is connected with an output gear, the output gear is connected with a sixth meshing piece in a meshing manner, and the sixth meshing piece is connected with a fifth gear in a meshing manner. The driving motor transmits power to the fifth gear.

In a preferred embodiment, the fourth shaft is provided with a connecting part assembled with the assembling plate, and the connecting part is provided with an eccentric connecting groove. And an eccentric lug which is adapted to the eccentric connecting groove is arranged on the end surface of one side of the fifth gear. When the pruning mechanism and the mounting seat are assembled, the fifth gear transmits power to the fourth shaft to drive the pruning mechanism to rotate and work.

In a preferred embodiment, the fifth gear is provided with a fifth shaft, and the fifth shaft is provided with a telescopic reset piece which is abutted between the fifth gear and the shell, so that alignment is not needed when the pruning mechanism and the mounting seat are assembled, and the pruning mechanism can be conveniently and rapidly assembled on the mounting seat.

In a preferred embodiment, the two sides of the shell are provided with pressing blocks, the pressing blocks extend into the shell and are provided with clamping grooves at the extending parts, and a U-shaped elastic strip is arranged between the clamping grooves of the two pressing blocks. The mounting seat bottom is equipped with the buckle, be equipped with the knot hole that supplies the buckle to stretch into on the assembly plate. When the branch sawing mechanism is fixedly assembled with the mounting seat, the buckle stretches into the buckling hole and is fixedly assembled and abutted with the U-shaped elastic strip. The user can realize breaking away from of sawing branch mechanism and mount pad through pressing down the pressing block, dismantles convenient and fast.

In a preferred embodiment, the bottom of the mounting seat is provided with a fixing groove, and one side of the shell is provided with a fixing lug assembled with the clamping groove, so that the assembly of the pruning mechanism and the mounting seat is firm and stable.

In a preferred embodiment, the mounting base has a stem attached thereto. The connecting handle is provided with a rotating block, an elastic resetting piece is arranged between the rotating block and the connecting handle, and the mounting seat is provided with a through hole for the rotating block to pass through; the upper ring of the rotating block is provided with a limiting protrusion, and the inner wall of the mounting seat is provided with a limiting groove matched with the limiting protrusion in an adapting mode. So that the pruning mechanism can adjust the angle according to the requirement.

In a preferred embodiment, the mounting seat is provided with a rotation mark around the through hole, and the rotation range of the pruning mechanism is-45-60 degrees, so that a user can accurately set the rotation angle.

Compared with the prior art, the utility model has the following beneficial effects:

1. the saw wheel is adopted to saw branches, the damage of parts is small, and compared with the traditional small-sized saw branch machine, the saw branch machine can cut branches with larger diameters.

2. The self-adaptive protection shell capable of rotating and resetting is assembled, and the self-adaptive protection shell and the shell are matched to ensure that the branches are in a clamped state when the branches are sawn, so that the branches are prevented from shaking.

3. The self-adaptive protective shell automatically resets the exposed part surrounding the saw wheel when the equipment stops working, so that the saw wheel is prevented from being knocked.

4. The quick-release saw wheel structure has the advantages that the quick-release saw wheel structure is convenient to replace, so that the saw wheel structure is applied to different use scenes, and the replacement efficiency is greatly improved.

Drawings

Fig. 1 is a perspective view of an assembly of a pruning mechanism and a mounting base and a connecting handle.

Fig. 2 is a perspective view of the internal structure of the assembly of the pruning mechanism and the mounting base and the connecting handle.

Fig. 3 is a partial enlarged view at a in fig. 2.

Fig. 4 is a schematic plan view of the internal structure of the assembly of the pruning mechanism and the mounting base and the connecting handle.

Fig. 5 is a perspective view of the pruning mechanism.

Fig. 6 is an exploded view of the pruning mechanism.

Fig. 7 is an exploded view of the mount at the rotating block.

Fig. 8 is a perspective view of the bottom of the mounting base.

The following is a description of the marks in the drawings of the specification:

1. a mounting base; 11. a buckle; 12. a through hole; 13. a limit groove; 14. rotating the mark; 15. a fixing groove;

2. a housing; 21. a bottom case; 22. a cover case; 23. a groove; 24. throwing out the hole; 25. an assembly plate; 26. a button hole; 27. a fixing bump; 28. a second clamping finger;

30. a first shaft; 31. a second shaft; 32. a third shaft; 33. a fourth shaft; 34. a fifth shaft; 35. a telescoping reset piece; 36. a connection part; 37. an eccentric connecting groove;

40. a first gear; 41. a second gear; 42. a third engagement member; 43. a fourth gear; 44. a fifth gear; 45. a sixth engagement member; 46. eccentric protruding blocks;

5. pressing the blocks; 51. a clamping groove; 52. a U-shaped elastic strip;

6. a self-adaptive protective shell; 61. a first clamping finger; 62. a connecting arm; 63. a torsion groove; 64. a torsion resetting piece;

7. a driving motor; 71. an output gear;

8. a connecting handle; 81. a rotating block; 82. an elastic reset piece; 83. a limit protrusion;

9. saw wheel.

Description of the embodiments

The utility model is described in further detail below with reference to the drawings and the detailed description.

In the following embodiments, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, and the embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it is to be understood that the terms: the directions of the center, the longitudinal, the lateral, the length, the width, the thickness, the upper, the lower, the front, the rear, the left, the right, the vertical, the horizontal, the top, the bottom, the inner, the outer, the clockwise, the counterclockwise, etc. indicate the directions or the positional relationship based on the directions or the positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and therefore, should not be construed as limiting the present utility model. Furthermore, the term: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of features shown. In the description of the present utility model, unless explicitly specified and defined otherwise, the terms: mounting, connecting, etc. should be construed broadly and the specific meaning of the terms in the present application will be understood by those skilled in the art in view of the specific circumstances.

Referring to fig. 1 to 8, a saw wheel type pruning mechanism is assembled on a mounting seat 1, and a driving motor 7 for driving the pruning mechanism is arranged in the mounting seat 1. The pruning mechanism comprises a shell 2, and a groove 23 is formed in one end of the shell 2. The first shaft 30 is arranged in the shell 2, a saw wheel 9 which partially extends out of the groove 23 is arranged on the first shaft 30, and the saw wheel 9 is connected and transmitted with the driving motor 7 through gear engagement transmission. The shell 2 is provided with a throwing hole 24 at two sides of the saw wheel 9, and sawdust generated in the process of sawing branches can be thrown out through the throwing hole 24.

The first shaft 30 is also provided with an adaptive protection shell 6 surrounding the part of the saw wheel 9 extending from the groove 23, and a torsion reset piece 64 is arranged between the adaptive protection shell 6 and the first shaft 30. The self-adaptive protection shell 6 is provided with a first clamping finger 61 at one side in the self-rotation direction, a second clamping finger 28 is arranged at one side of the groove 23, and a clamping area which can be changed according to the branch diameter is formed between the first clamping finger 61 and the second clamping finger 28. The torsion return member 64 is used to provide a return torsion force to the adaptive protective casing 6.

Specifically, the housing 2 includes a bottom case 21 and a cover case 22, and the bottom case 21 and the cover case 22 are fixed by screw fitting. The first shaft 30 is connected to the bottom housing 21 and the cover housing 22 by means of a bearing connection. The self-adaptive protection shell 6 comprises a connecting arm 62, a torsion groove 63 is formed in the connecting arm 62, the first shaft 30 passes through the torsion groove 63, and the torsion resetting piece 64 is arranged in the torsion groove 63. Preferably, the torsion return member 64 is a torsion spring, one end of which is inserted into the first shaft 30, and the other end of which is inserted into a side wall of the torsion slot 63.

The essential effects of this embodiment are: the self-adaptation protective housing 6 can protect saw wheel 9, and the holding area that self-adaptation protective housing 6 and recess 23 cooperation formed can carry out the self-adaptation according to the branch diameter of card income and adjust, and self-adaptation protective housing 6 resets under the help of torsion reset piece 64 when the saw is branch finishes.

As a specific embodiment, on the basis of the above embodiment, a mounting plate 25 is mounted in the housing 2, and the mounting plate 25 is provided with a second shaft 31 having a second gear 41 fixedly mounted thereon, a third shaft 32 having a third engaging member 42 fixedly mounted thereon, and a fourth shaft 33 having a fourth gear 43 fixedly mounted thereon. The first shaft 30 is mounted on the mounting plate 25, a first gear 40 is mounted on the first shaft 30, and the first gear 40, the second gear 41, the third meshing member 42 and the fourth gear 43 are sequentially meshed and connected for transmission. The pruning mechanism is driven to operate by power from the fourth gear 43. The third engaging member 42 includes a third large tooth portion and a third small tooth portion coaxially disposed, the third large tooth portion is engaged with the fourth gear 43, and the third small tooth portion is engaged with the second gear 41.

The driving motor 7 is connected with an output gear 71, the output gear 71 is connected with a sixth meshing piece 45 in a meshing way, and the sixth meshing piece 45 is connected with a fifth gear 44 in a meshing way. The drive motor 7 transmits power to the fifth gear 44. Wherein the sixth engagement member 45 includes a sixth large tooth portion and a sixth small tooth portion coaxially disposed, the sixth large tooth portion being in meshed connection with the output gear 71, the sixth small tooth portion being in meshed connection with the fifth gear 44.

The embodiment carries out transmission through the meshing of a plurality of groups of gears, the transmission is accurate and reliable, and the power loss is small.

As a specific embodiment, in addition to the above embodiment, the fourth shaft 33 is provided with a connection portion 36 assembled with the assembly plate 25, and the connection portion 36 is provided with an eccentric connection groove 37. An eccentric lug 46 which is adapted to be assembled with the eccentric connecting groove 37 is arranged on one side end surface of the fifth gear 44. When the pruning mechanism and the mounting seat 1 are assembled, the fifth gear 44 transmits power to the fourth shaft 33 to drive the pruning mechanism to rotate and work. The fifth gear 44 is provided with a fifth shaft 34, and the fifth shaft 34 is provided with a telescopic reset piece 35 which is abutted between the fifth gear 44 and the housing 2, so that alignment is not required when the pruning mechanism is assembled with the mounting seat 1, and the pruning mechanism can be conveniently and rapidly assembled on the mounting seat 1.

Further, pressing blocks 5 are assembled on two sides of the shell 2, the pressing blocks 5 extend into the shell 2, clamping grooves 51 are formed in the extending portions, and U-shaped elastic strips 52 are arranged between the clamping grooves 51 of the two pressing blocks 5. The bottom of the mounting seat 1 is provided with a buckle 11, and the assembly plate 25 is provided with a buckle hole 26 into which the buckle 11 extends. When the pruning mechanism is assembled and fixed with the mounting seat 1, the buckle 11 stretches into the buckling hole 26 and is assembled and abutted with the U-shaped elastic strip 52 for fixation. The user can realize the separation of the pruning mechanism and the mounting seat 1 by pressing the pressing block 5, and the disassembly is convenient and quick. The bottom of the mounting seat 1 is provided with a fixing groove 15, and one side of the shell 2 is provided with a fixing lug 27 assembled with the clamping groove 51, so that the assembly of the pruning mechanism and the mounting seat 1 is firm and stable.

Preferably, the U-shaped elastic strip 52 is a metal strip with excellent resilience and high hardness, so as to meet the requirements of small manual pressing force and no deformation of the buckle 11 during assembly. The telescopic restoring member 35 is a metal spring.

The effect of this embodiment is that: compared with the replacement mode that needs to be disassembled and assembled through tools such as a screwdriver in the prior art, the quick-disassembly structure is added between the pruning mechanism and the mounting seat 1, the pruning mechanism can be conveniently and rapidly disassembled only by pressing the pressing block 5, special tools are not needed, and the replacement speed is greatly improved.

As a specific embodiment, on the basis of the above embodiment, the mounting base 1 is connected with a connection handle 8. The connecting handle 8 is provided with a rotating block 81, an elastic reset piece 82 is arranged between the rotating block 81 and the connecting handle 8, and the mounting seat 1 is provided with a through hole 12 for the rotating block 81 to pass through. The rotating block 81 is provided with a limiting protrusion 83 in a ring, and the inner wall of the mounting seat 1 is provided with a limiting groove 13 which is matched with the limiting protrusion 83 in an adapting way. So that the pruning mechanism can adjust the angle according to the requirement. The mounting seat 1 is provided with a rotating mark 14 around the through hole 12, and the rotating range of the pruning mechanism is-45 degrees to 60 degrees, so that a user can accurately set a rotating angle.

The scope of the present utility model includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the utility model.

Claims (10)

1. The saw wheel type branch sawing mechanism is characterized by comprising a saw wheel (9) for performing branch sawing operation, wherein part of saw blades of the saw wheel (9) are arranged in an adaptive protection shell (6), and a first clamping finger (61) is arranged on the adaptive protection shell (6);

the pruning mechanism is also provided with a second clamping finger (28), a clamping area is formed between the first clamping finger (61) and the second clamping finger (28), and part of the saw blade is exposed in the clamping area for executing pruning operation;

the pruning mechanism is also provided with a torsion resetting piece (64), and the torsion resetting piece (64) acts on the self-adaptive protection shell (6) so that the first clamping finger (61) is close to the second clamping finger (28).

2. A saw wheel type pruning mechanism according to claim 1, wherein the pruning mechanism comprises a shell (2), a groove (23) is formed in one end of the shell (2), and the second clamping finger (28) is one side of the groove (23).

3. The saw wheel type branch sawing mechanism according to claim 2, wherein a mounting plate (25) is mounted in the shell (2), and a first shaft (30) fixedly connected with the saw wheel (9), a second shaft (31) fixedly provided with a second gear (41), a third shaft (32) fixedly provided with a third meshing piece (42) and a fourth shaft (33) fixedly provided with a fourth gear (43) are mounted on the mounting plate (25); the first shaft (30) is also provided with a first gear (40), and the first gear (40), the second gear (41), the third meshing piece (42) and the fourth gear (43) are sequentially meshed and connected for transmission.

4. A saw wheel type pruning mechanism according to claim 3, characterized in that the pruning mechanism is assembled on a mounting seat (1), a driving motor (7) for driving the pruning mechanism is arranged in the mounting seat (1), the driving motor (7) is connected with an output gear (71), the output gear (71) is in meshed connection with a sixth meshing piece (45), and the sixth meshing piece (45) is in meshed connection with a fifth gear (44).

5. A saw wheel type pruning mechanism according to claim 4, characterized in that the fourth shaft (33) is provided with a connecting part (36) assembled with the assembling plate (25), and the connecting part (36) is provided with an eccentric connecting groove (37); an eccentric lug (46) which is adapted to be assembled with the eccentric connecting groove (37) is arranged on one side end surface of the fifth gear (44).

6. A saw wheel type pruning mechanism according to claim 5, characterized in that a fifth shaft (34) is arranged on the fifth gear (44), and a telescopic reset piece (35) which is abutted between the fifth gear (44) and the shell (2) is arranged on the fifth shaft (34).

7. The saw wheel type branch sawing mechanism according to claim 4, wherein pressing blocks (5) are arranged on two sides of the shell (2), the pressing blocks (5) extend into the shell (2) and are provided with clamping grooves (51) at the extending parts, and U-shaped elastic strips (52) are arranged between the clamping grooves (51) of the two pressing blocks (5); the bottom of the mounting seat (1) is provided with a buckle (11), and the assembly plate (25) is provided with a buckle hole (26) into which the buckle (11) extends; when the branch sawing mechanism is fixedly assembled with the mounting seat (1), the buckle (11) stretches into the buckling hole (26) and is fixedly assembled and abutted with the U-shaped elastic strip (52).

8. The saw wheel type branch sawing mechanism according to claim 7, wherein a fixing groove (15) is formed in the bottom of the mounting seat (1), and a fixing lug (27) assembled with the clamping groove (51) is formed on one side of the shell (2).

9. A saw wheel type pruning mechanism according to claim 4, characterized in that the mounting base (1) is connected with a connecting handle (8); a rotating block (81) is arranged on the connecting handle (8), an elastic resetting piece (82) is arranged between the rotating block (81) and the connecting handle (8), and a through hole (12) for the rotating block (81) to pass through is arranged on the mounting seat (1); limiting protrusions (83) are arranged on the rotating block (81) in a surrounding mode, and limiting grooves (13) which are matched with the limiting protrusions (83) in an adapting mode are formed in the inner wall of the mounting seat (1).

10. Saw wheel type pruning mechanism according to claim 9, characterized in that the mounting base (1) is provided with a rotation mark (14) around the through hole (12), and the rotation range of the pruning mechanism is-45-60 °.