CN204350704U - Hand-held branch pruning device - Google Patents

Abstract

The utility model relates to a hand-held tree branch pruning device, which comprises a tubular casing, in which a handle rod capable of moving up and down along the axis of the casing is arranged, and the upper end of the handle rod is hinged to the lower ends of two blades through two knife pull rods. The knife back of each blade is hinged with two force-applying parallel rods, and the two force-applied parallel rods are hinged with a component force rod to form a four-bar linkage mechanism; the middle part of the force component rod is connected with the end of the tilting knife rod Hinged, the tilting knife bar is hinged with the opening knife bar, and the opening knife bar is hinged outside the upper end of the shell; the length of the hand lever is longer than the shell and the lower end always protrudes outside the shell, when the pull bar moves down to the lowest point, the blade Close up and the knife edges meet; when the handle bar is pushed up to the highest point, the upper end of the handle bar protrudes out of the housing, and the blades are opened. The utility model can open and close the blades by pulling the handle bar up and down to complete the pruning. The utility model has the advantages of simple operation, accurate pruning and wide application range.

Description

Handheld Tree Trimmer

technical field

The utility model relates to a branch pruning device, in particular to a hand-held branch pruning device.

Background technique

With the development of time, the current trees grow taller and larger, and some are extraordinarily dense. Manual and traditional tree pruning devices are difficult to prune, and it is difficult to achieve precise pruning when pruning. Often due to the reason of the device, many irrelevant branches will be trimmed, which is inconvenient to operate and not labor-saving enough.

Contents of the invention

The purpose of the utility model is to overcome the defects of the prior art and provide an easy-to-operate and labor-saving hand-held branch pruning device.

The technical scheme of the utility model is:

It includes a tubular shell, in which there is a pull rod that can move up and down along the axis of the shell. The upper end of the pull rod is hinged to the lower ends of the two blades through two knife pull rods. The two blades are arranged symmetrically and the edges of the blades are relatively;

Among them, the knife back of each blade is hinged with two force-applying parallel rods, and the two force-applied parallel rods are hinged with a component force rod to form a four-bar linkage mechanism; the middle part of the force component rod and the end of the tilting knife rod The part is hinged, the tilting knife bar is hinged with the opening knife bar, and the opening knife bar is hinged on the outer side of the upper end of the shell;

The length of the pull rod is longer than the casing and the lower end always protrudes outside the casing. When the handle rod is pulled to move down to the lowest point, the blades are closed and the knife edges meet; It protrudes out of the housing, and the blade is opened.

A handle ring with a size larger than the inner diameter of the housing is provided at the lower end of the handle rod.

The upper end of the housing is conical, and a knife bar stopper is arranged on the outer surface of the cone, and when the edges of the blades are connected, the knife bar stopper is in contact with the knife bar.

The tilting knife bar is L-shaped, and a tilting knife bar stopper is arranged on the Zhang knife bar near the inner side of the L shape.

The side of the force component pole close to the blade is provided with a force applying rod stopper.

A detachable fruit basket is sheathed on the housing, and the fruit basket is located under the Zhang knife bar.

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

The utility model is provided with a four-bar linkage mechanism, so that the force-applying parallel bar and the component force bar form three sides of a parallelogram, and when the force is applied to the blade, the force on the blade is uniform and the stability is good; Hinged together, at the same time, the knife back of the blade is hinged with the outer side of the shell through the force-applying parallel rod, the force component tension rod and the tilting knife rod. When the hand lever moves up and down, the same blade will The movement paths of the two force-applying parallel rods connected on the top are not equal, so that the opening of the blade is tapered, and the effect of the opening of the knife rod makes the opening larger, making it easier for the object to be cut to enter the knife edge; The synergistic structure of the knife bar and the opening knife bar automatically forms a booster device when the knife edge is closed, making it easier for the knife to cut the object to be cut and save labor. The utility model can make the blade open and close by pulling the hand lever up and down to complete the pruning. The operation is simple, and the size of the opening of the blade is controlled by the hand lever so that the blade can be trimmed accurately. The utility model has a wide application range, especially for deep and high branches that are not suitable for hands to reach, or for fruit picking and the like.

Further, the utility model is provided with a handle ring, which is beneficial to pull up and down, and the size is larger than the inner diameter of the housing, so it can effectively ensure that the lower end of the handle rod is always outside the housing, which is convenient for operation.

Furthermore, the utility model restricts the movement position of the tension rod by setting the tension rod stopper, and effectively prevents damage to the edge of the blade.

Further, the utility model restricts the movement position of the tilting knife bar by setting the stopper of the tilting knife bar, avoids the difficulty of closing due to the excessive opening, and ensures that it can move along a given track when closing.

Further, the utility model restricts the moving position of the force-applying parallel bar by setting the stopper of the force-applying rod, and ensures that the force-increasing effect is maximum when the two blades are in contact.

Further, the utility model is provided with a fruit basket, which can effectively catch the cut fruits when used for collecting fruits, and effectively prevent damage caused by direct falling.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model when it is closed.

Fig. 2 is a schematic diagram of the structure of the utility model when it is opened.

1-tilting knife bar; 2-piece knife bar; 3-force component rod; 4-force parallel bar; 5-force bar stopper; 6-blade; 7-tilting knife bar stopper; ; 9-cutter bar stopper; 10-hand lever; 11-housing; 12-hand ring.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

With reference to Fig. 1 and Fig. 2, the utility model comprises a tubular housing 11, wherein the upper end of the housing 11 is conical, and below the conical shape, two knife bars 2 are arranged symmetrically on both sides of the housing 11. On the tapered outer surface of 11, there is a knife bar stopper 9, which limits the movement position of the knife bar 2; each knife bar 2 is connected to the tilting knife bar 1 hinged above it, and the tilting knife bar 1 is L-shaped , and near the inner side of the L-shaped knife bar 2 is provided with a tilting bar stopper 7 to limit the movement position of the tilting bar 1, and the tilting bar 1 is connected to the middle part of the force component rod 3 hinged above it. The two ends of the rod 3 are respectively connected with two force-applying parallel rods 4 hinged above it, and the force-applying rod 3 is provided with a force-applying rod block 5, which limits the movement position of the force-applying parallel rod 4, and the force-applying parallel rod 4 Linked to the blade 6 hinged thereon, the force component strut 3 hinged together, the two force-applying parallel rods 4 and the blade 6 form a four-bar linkage. The two blades 6 are symmetrical and the edges of the blades are opposite; the lower ends of the two blades 6 are respectively hinged with the two pull rods 8, and the two pull rods 8 are hingedly connected with the upper ends of the pull rod 10, and the pull rod 10 is arranged in the housing 11 and can be moved along the The axis of the housing 11 moves up and down, the length of the handle bar 10 is longer than the housing 11 and the lower end always protrudes outside the housing 11, when the handle bar 10 is pulled and moves down to the lowest point, the blades 6 are closed and the edges of the blades are connected; When the pull rod 10 moves upwards to the highest point, the upper end of the handle rod 10 protrudes out of the casing 11 and the blade 6 opens; A detachable fruit basket is sheathed on the housing 11 , and the fruit basket is located below the knife bar 2 .

The main working process and principle of the utility model: firstly push the handle bar 10 upwards through the hand pull ring 12, so that the knife pull bar 8 and the blade 6 are opened in parallel under the action of the force parallel bar 4, and then the parallel force bar 4 is opened in parallel. Under the action of the tilting knife bar 1, the opening is tilted, so that the tilting knife bar 1 expands the opening under the action of the opening knife bar 2, until the tilting knife bar 1 and the tilting knife bar block 7 are in contact. Pull the hand lever 10 downwards through the hand pull ring 12, so that the knife lever 8 drives the blade 6 and increases the force under the joint action of the force-applying parallel bar 4, the tilting knife bar 1 and the opening knife bar 2, and closes in parallel. When connecting, the piece of knife bar block 9 contacts with the piece of knife bar 2 to complete the pruning work.

The utility model has the following advantages:

1) Uniform force and good stability: because the force-applying parallel bar adopts a parallelogram to apply force to the blade, the force on the blade is uniform and the stability is good;

2) The opening is large, and the tapered inlet method is adopted, which makes it easier to enter the knife edge: due to the function of the tilting knife bar, the opening can be made into a tapered mouth, and the function of the opening knife bar makes the opening larger, making it easier for the items to be reduced to enter the knife edge middle;

3) Trimming is more labor-saving: due to the combined design structure of the tilting knife bar and the opening knife bar, a force booster is automatically formed when the knife edge is closed, making it easier for the knife to cut objects.

4) In order to ensure that the force-increasing effect is maximized when the two blades are in contact, the utility model designs a force-applying rod block to control the movement position of the force-applying parallel rod.

The hand-held branch pruning device of the utility model can be used for labor-saving pruning of branches in high places and deep places where people are not suitable for reaching, and can also be used for fruit picking, etc. Easy to operate and labor-saving features.

Claims (6)

1. hand-held branch pruning device, it is characterized in that: the housing (11) comprising tubular type, the hand lever (10) that can move up and down along the axis of housing (11) is provided with in described housing (11), the upper end of hand lever (10) is hinged by the lower end of two cutter pull bars (8) with two blades (6), and two blades (6) are symmetrical arranged and the edge of a knife is relative;

Wherein, the knife back of each blade (6) and two parallel bars (4) that exert a force are hinged, and two forces parallel bar (4) are hinged with a component pole (3), form quadric chain; The middle part of component pole (3) and the end of tilted blade bar (1) are hinged, and tilted blade bar (1) is hinged with a knife bar (2), and a knife bar (2) is hinged on outside the upper end of housing (11);

The length of described hand lever (10) is greater than housing (11) and housing (11) is given prominence to outward all the time in lower end, when pulling hand lever (10) to move downwardly to lowest part, blade (6) closes up and the edge of a knife connects; When promoting hand lever (10) and moving up to highest point, housing (11) is given prominence to outward in the upper end of hand lever (10), and blade (6) opens.

2. hand-held branch pruning device according to claim 1, is characterized in that: the lower end of described hand lever (10) arranges the hand draw ring (12) that size is greater than housing (11) internal diameter.

3. hand-held branch pruning device according to claim 1, it is characterized in that: the upper end of described housing (11) is taper, tapered outer side face is provided with a knife bar block (9), when the edge of a knife of blade (6) connects, a knife bar block (9) and a knife bar (2) contact.

4. the hand-held branch pruning device according to claim 1 or 3, is characterized in that: described tilted blade bar (1) is L shape, and opening on knife bar (2) inside L shape is provided with tilted blade pole spacing block (7).

5. hand-held branch pruning device according to claim 4, is characterized in that: described component pole (3) is provided with force application rod block (5) near the side of blade (6).

6. hand-held branch pruning device according to claim 1, is characterized in that: the upper sheathed fruit basket that can dismantle of described housing (11), and fruit basket is positioned at a knife bar (2) below.