Forestry branch and leaf pruning device

Abstract

The utility model relates to the technical field of forestry pruning, in particular to a forestry branch and leaf pruning device which comprises two scissor handles, the two scissor handles are connected in a pivoted mode through a pivot, cutter heads are arranged at the front ends of the scissor handles, a spring is arranged between the two scissor handles, a first connecting piece is arranged at one end of the spring, and a second connecting piece is arranged at the other end of the spring. An adjusting mechanism for adjusting the elastic force of the spring is arranged on the first connecting piece; the first connecting piece and the second connecting piece are detachably connected with the scissor handles, a worker can replace the spring conveniently, practicability is good, when the spring is loosened and the scissor heads cannot be separated normally, the adjusting mechanism is used for adjusting the elastic force of the spring, and the service life of the elastic piece is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to forestry pruning technical field especially relates to a forestry branch and leaf pruning device. BACKGROUND

[0002] Due to natural aging or because of the interference of external factors, the branches and leaves of plants often appear aging phenomenon, and the aging branches and leaves cannot continuously synthesize nutrients for seedlings, meet the needs of their metabolism and development, so need to be pruned to avoid unnecessary nutrient consumption, in addition, pruning branches and leaves for trees can also improve the appearance of trees and maintain the beautiful shape and symmetrical structure of trees.

[0003] For example, the Chinese patent with application number CN202323184088.0 discloses a branch and leaf pruning device for cultivating Chinese rose, which comprises a first pruning knife, a second pruning knife movably connected to the top surface of the first pruning knife through a pivot, a first handle body fixedly connected to the rear surface of the first pruning knife, a second handle body fixedly connected to the rear surface of the second pruning knife, a clamping box fixedly connected to the top surface of the second handle body, a movement plate slidingly connected to the inner surface of the clamping box, and a receiving groove formed in the front surface of the movement plate. The clamping box, the movement plate, the receiving groove, the clamping spring, the clamping sphere, the limiting box, the moving plate, the limiting spring, and the limiting column can be used to conveniently and labor-savingly lock the pruning device. A spring is arranged between the two pruning knives to support the knife handles apart, but the spring force will continuously relax under long-time pressing, which causes the knife heads to fail to normally separate during subsequent use of the pruning device, affecting the continuous use of the pruning device. SUMMARY

[0004] To solve the problem that the spring force of the existing pruning device continuously relaxes under long-time pressing, which causes the knife heads to fail to normally separate during subsequent use of the pruning device, the utility model provides a forestry branch and leaf pruning device.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a forestry branch and leaf pruning device, which comprises two pruning knife handles, the two pruning knife handles are pivotally connected through a pivot, the front end of the pruning knife handle is provided with a knife head, and the tail end of the pruning knife handle is provided with a handle sleeve.

[0006] A spring is arranged between the two pruning knife handles, one end of the spring is provided with a first connecting piece, the other end of the spring is provided with a second connecting piece, and an adjusting mechanism for adjusting the spring force is arranged on the first connecting piece.

[0007] The connecting grooves are arranged on the opposite sides of the two scissor handles, the first connecting piece and the second connecting piece are respectively arranged in the two springs, and the first connecting piece and the second connecting piece are detachably connected with the scissor handles.

[0008] Further improvement lies in that the first connecting piece comprises a first fixing column arranged in the connecting groove, a movable ring is arranged outside the first fixing column, the movable ring is in sliding connection with the first fixing column, and one end of the spring close to the first fixing column is fixedly connected with the movable ring.

[0009] Further improvement lies in that the second connecting piece comprises a second fixing column arranged in the connecting groove, a fixed ring is arranged outside the second fixing column, the fixed ring is fixedly connected with the second fixing column, and one end of the spring close to the second fixing column is fixedly connected with the fixed ring.

[0010] Further improvement lies in that the adjusting mechanism comprises an adjusting nut and a limiting ring, the limiting ring is fixedly connected at one end of the first fixing column close to the second fixing column, the adjusting nut is rotationally connected at one side of the movable ring away from the limiting ring, the adjusting nut and the limiting ring are arranged outside the first fixing column, and the inner wall of the adjusting nut is in threaded connection with the outer wall of the first fixing column.

[0011] Further improvement lies in that a positioning groove is arranged at one side of the first fixing column close to the second fixing column, and the positioning groove is in sliding connection with the second fixing column.

[0012] Further improvement lies in that a first threaded groove is arranged in the center of the second fixing column, a first fixing bolt is in threaded connection in the first threaded groove, the first fixing bolt penetrates through the scissor handle at one end away from the second fixing column, and a mounting nut for fastening the first fixing bolt is arranged at one side of the scissor handle away from the connecting groove.

[0013] Further improvement lies in that a second threaded groove is arranged in the center of the first fixing column, a second fixing bolt is in threaded connection in the second threaded groove, the second fixing bolt penetrates through the scissor handle at one end away from the second fixing column, and a mounting nut for fastening the second fixing bolt is arranged at one side of the scissor handle away from the connecting groove.

[0014] Further improvement lies in that at least two lever rods are arranged outside the adjusting nut, the lever rods are fixedly connected with the adjusting nut, and the axes of the lever rods are tangent to the adjusting nut.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] The two ends of the spring are fixed in the inner sides of the two scissor handles in a detachable connection mode, the spring can be replaced by the staff conveniently, the utility is good, the spring elasticity can be adjusted by using the adjusting mechanism when the scissor head cannot be normally separated due to relaxation of the spring, and the service life of the elastic piece is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 is the structure diagram of the scissor handle in the utility model.

[0019] Figure 2 is the structure diagram of the spring in the utility model.

[0020] Figure 3 is the structure of the second fixed column in the utility model.

[0021] Figure 4 is the structure of the first fixed column in the utility model.

[0022] 1, scissor handle; 2, handle sleeve; 3, spring; 4, connecting groove; 5, cutter head; 6, mounting nut; 7, first fixed column; 8, second fixed column; 9, adjusting nut; 10, movable ring; 11, limiting ring; 12, fixed ring; 13, first fixed bolt; 14, first threaded groove; 15, lever; 16, positioning groove; 17, second threaded groove; 18, second fixed bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0024] According to Figure 1 , 2 , 3, 4, the present embodiment proposes a forestry branch pruning device, which comprises two scissor handles 1, the two scissor handles 1 are pivotally connected through a pivot, the front end of the scissor handle 1 is provided with a cutter head 5, and the tail end of the scissor handle 1 is provided with a handle sleeve 2; when the pruning device is used, the handle sleeve 2 is held, the scissor handle 1 is pressed down, and the cutter head 5 on the scissor handle 1 will form a shearing force to cut off the branches and leaves. The handle sleeve 2 plays a role of anti-skid.

[0025] Two scissors handles 1 are provided with springs 3, one end of the spring 3 is provided with a first connecting piece, the other end of the spring 3 is provided with a second connecting piece, the first connecting piece is provided with an adjusting mechanism for adjusting the spring force of the spring 3; after completing the branch pruning, loosen the handle sleeve 2, under the action of the spring 3, the two handle sleeves 2 will be opened, the cutter head 5 is automatically opened, so as to improve the pruning efficiency. When the spring 3 appears relaxation, resulting in the cutter head 5 can not be normally separated, adjust the spring force of the spring 3 by using the adjusting mechanism, prolong the service life of the spring.

[0026] Two scissors handles 1 are provided with connecting grooves 4 on the side, the first connecting piece and the second connecting piece are respectively arranged in the two springs 3, and the first connecting piece and the second connecting piece are detachably connected with the scissors handle 1.

[0027] The two ends of the spring 3 are detachably connected with the inner sides of the two scissors handles 1, so that the spring 3 can be replaced by the staff, and the practicability is good.

[0028] Regarding the first connecting piece:

[0029] The first connecting piece comprises a first fixed column 7 arranged in the connecting groove 4, the first fixed column 7 is sleeved with a movable ring 10 on the outside, the movable ring 10 is slidably connected with the first fixed column 7, and the end of the spring 3 close to the first fixed column 7 is fixedly connected with the movable ring 10.

[0030] Regarding the second connecting piece: the second connecting piece comprises a second fixed column 8 arranged in the connecting groove 4, the second fixed column 8 is sleeved with a fixed ring 12 on the outside, the fixed ring 12 is fixedly connected with the second fixed column 8, and the end of the spring 3 close to the second fixed column 8 is fixedly connected with the fixed ring 12.

[0031] The first fixed column 7 and the second fixed column 8 are detachably connected in the connecting grooves 4 arranged in the inner sides of the two scissors handles 1, the two ends of the spring 3 are fixed with the movable ring 10 and the fixed ring 12 sleeved on the outside of the first fixed column 7 and the second fixed column 8, the movable ring 10 is slidably arranged on the outside of the first fixed column 7, when the distance between the movable ring 10 and the fixed ring 12 is reduced, the spring force of the spring 3 will increase, so as to achieve the purpose of increasing the spring force.

[0032] The specific structure of the adjusting mechanism is described as follows:

[0033] The adjusting mechanism comprises an adjusting nut 9 and a limiting ring 11, the limiting ring 11 is fixedly connected to one end of the first fixed column 7 close to the second fixed column 8, the adjusting nut 9 is rotatably connected to one side of the movable ring 10 away from the limiting ring 11, the adjusting nut 9 and the limiting ring 11 are sleeved on the outer side of the first fixed column 7, and the inner side wall of the adjusting nut 9 is threadedly connected with the outer side wall of the first fixed column 7. Rotating the adjusting nut 9, the adjusting nut 9 is rotated away from the second fixed column 8, the adjusting nut 9 pushes the movable ring 10, the distance between the movable ring 10 and the fixed ring 12 is reduced, the limiting ring 11 is sleeved on the end portion of the first fixed column 7, and the limiting ring 11 limits the movable ring 10, so that the movable ring 10 is prevented from being separated from the end portion of the first fixed column 7.

[0034] In order to prevent the first fixed column 7 from interfering with the second fixed column 8 after the two scissors handles 1 are combined, in the preferred embodiment, a positioning groove 16 is formed in the side of the first fixed column 7 close to the second fixed column 8, and the positioning groove 16 is in sliding connection with the second fixed column 8. When the two scissors handles 1 are completely combined, the second fixed column 8 protruding from the connecting groove 4 will be inserted into the positioning groove 16 formed in the end portion of the first fixed column 7, and the space occupied by the first connecting piece and the second connecting piece is optimized.

[0035] The first fixed column 7 is fixed to the scissors handle 1 by means of a bolt connection. Specifically, a first threaded groove 14 is formed in the center of the second fixed column 8, a first fixed bolt 13 is threadedly connected in the first threaded groove 14, the first fixed bolt 13 penetrates the scissors handle 1 away from the second fixed column 8, and the scissors handle 1 is provided with a mounting nut 6 for fastening the first fixed bolt 13 on the side away from the connecting groove 4. To release the fixation of the second fixed column 8 to the scissors handle 1, the mounting nut 6 on the outer side of the scissors handle 1 is rotated off the first fixed bolt 13, and then the first fixed bolt 13 is rotated out of the second fixed column 8.

[0036] The second fixed column 8 is also fixed to the scissors handle 1 by means of a bolt connection. Specifically, a second threaded groove 17 is formed in the center of the first fixed column 7, a second fixed bolt 18 is threadedly connected in the second threaded groove 17, the second fixed bolt 18 penetrates the scissors handle 1 away from the second fixed column 8, and the scissors handle 1 is provided with a mounting nut 6 for fastening the second fixed bolt 18 on the side away from the connecting groove 4. For the same reason, no further description is given here.

[0037] In order to facilitate the rotation of the adjusting nut 9, in the preferred embodiment, at least two lever rods 15 are provided on the outer side of the adjusting nut 9, the lever rods 15 are fixedly connected with the adjusting nut 9, and the axis of the lever rod 15 is tangent to the adjusting nut 9. The lever rod 15 fixed on the outer side of the adjusting nut 9 can facilitate the user to move the adjusting nut 9.

[0038] The working principle of the present application is as follows:

[0039] When the pruning device is used, the handle sleeve 2 is held, the scissor handle 1 is pressed down, the cutter head 5 on the scissor handle 1 forms a shearing force to cut off the branches and leaves. After the branches and leaves are pruned, the handle sleeve 2 is loosened, and under the action of the spring 3, the two handle sleeves 2 are separated, the cutter head 5 is automatically opened, thereby improving the pruning efficiency. When the spring 3 is loose and the cutter head 5 cannot be normally separated, the spring 3 elasticity can be adjusted by using the adjusting mechanism, thereby prolonging the service life of the elastic force piece. The two ends of the spring 3 are detachably connected to the inner sides of the two scissor handles 1, which is convenient for the staff to replace the spring 3.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A forestry branch pruning device, comprising two shears handles (1), the two shears handles (1) are pivotally connected through a pivot, the front end of the shears handle (1) is provided with a blade head (5), and the tail end of the shears handle (1) is provided with a handle sleeve (2), characterized in that: a spring (3) is arranged between the two shears handles (1), one end of the spring (3) is provided with a first connecting piece, the other end of the spring (3) is provided with a second connecting piece, and an adjusting mechanism for adjusting the elastic force of the spring (3) is arranged on the first connecting piece; connecting grooves (4) are arranged on the opposite sides of the two shears handles (1), the first connecting piece and the second connecting piece are respectively arranged in the two springs (3), and the first connecting piece and the second connecting piece are detachably connected with the shears handle (1); the first connecting piece comprises a first fixed column (7) arranged in the connecting groove (4), an activity ring (10) is arranged on the outer side of the first fixed column (7), the activity ring (10) is in sliding connection with the first fixed column (7), and one end of the spring (3) close to the first fixed column (7) is fixedly connected with the activity ring (10); the second connecting piece comprises a second fixed column (8) arranged in the connecting groove (4), a fixed ring (12) is arranged on the outer side of the second fixed column (8), the fixed ring (12) is fixedly connected with the second fixed column (8), and one end of the spring (3) close to the second fixed column (8) is fixedly connected with the fixed ring (12); the adjusting mechanism comprises an adjusting nut (9) and a limiting ring (11), the limiting ring (11) is fixedly connected at one end of the first fixed column (7) close to the second fixed column (8), the adjusting nut (9) is rotationally connected on one side of the activity ring (10) away from the limiting ring (11), the adjusting nut (9) and the limiting ring (11) are arranged on the outer side of the first fixed column (7), and the inner wall of the adjusting nut (9) is in threaded connection with the outer wall of the first fixed column (7). A positioning groove (16) is arranged on one side of the first fixed column (7) close to the second fixed column (8), and the positioning groove (16) is in sliding connection with the second fixed column (8).

2. A forestry pruning device according to claim 1, characterised in that: A first threaded groove (14) is arranged in the center of the second fixed column (8), a first fixed bolt (13) is in threaded connection in the first threaded groove (14), one end of the first fixed bolt (13) away from the second fixed column (8) penetrates the shears handle (1), and the shears handle (1) is provided with a mounting nut (6) on one side away from the connecting groove (4) for fastening the first fixed bolt (13).

3. A forestry branch lopper according to claim 1, wherein: A second threaded groove (17) is arranged in the center of the first fixed column (7), a second fixed bolt (18) is in threaded connection in the second threaded groove (17), one end of the second fixed bolt (18) away from the second fixed column (8) penetrates the shears handle (1), and the shears handle (1) is provided with a mounting nut (6) on one side away from the connecting groove (4) for fastening the second fixed bolt (18).

4. The forestry branch lopper of claim 1, wherein: ​ 5. The forestry branch lopper device of claim 1, wherein: The adjusting nut (9) is provided with at least two push rods (15) outside, the push rod (15) is fixedly connected with the adjusting nut (9), and the axis of the push rod (15) is tangent to the adjusting nut (9).

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