CN2471088Y

CN2471088Y - Telescopic long arm

Info

Publication number: CN2471088Y
Application number: CN 00232353
Authority: CN
Inventors: 薛州荣; 刘银
Original assignee: CHINA GEOLOGY UNIV
Current assignee: CHINA GEOLOGY UNIV
Priority date: 2000-11-08
Filing date: 2000-11-08
Publication date: 2002-01-16
Anticipated expiration: 2010-11-08

Abstract

The utility model is a tool for picking fruits on the tree or pruning trees. Because the utility model adopts a flexible machine and a pruning machine which can flex freely according to the height of the tree, the machine provides a simple, economic, convenient, reliable and secure picking tool and will not harm the fruits and trees. The utility model is very applicable to picking the fruits of the economic trees with thorns, for example: The equipment is better at picking the cayenne.

Description

A kind of telescopic long-armed scissors

The utility model belongs to gardens, especially for the instrument of plucking fruit or pruning trees.

Pruning trees or when plucking fruit in the tree, usually with ladder or stepping on stool or climb to tree and go up with scissors, saw or directly break off with the fingers and thumb to break and just can achieve the goal with hand; Doing maximum disadvantage like this is exactly that danger is bigger, and just the easier people of making is injured when particularly plucking fruit or pruning trees on overgrowing with the thorn tree; Therefore need a kind of just can stand on the ground can pruning trees or pluck tree upward the instrument of fruit satisfy the demands.Patent Office of the People's Republic of China has authorized a name to be called " being used in the long-armed scissors on the gardens " on January 17th, 1996, and (patent No.: utility model patent ZL94225330.2) just can address this problem.But because the long-armed not flexible of this scissors, just can not satisfy the requirement that the place of differing heights is in the tree plucked fruit and pruning trees easily fully.

The purpose of this utility model is exactly the long-armed type scissors that can freely stretch.

For reaching this purpose, inventive concept of the present utility model is on long-armed the mechanism that can stretch on demand as required to be set, and comprises two contents: the first long-armed scalable, and can fix; It two is that the mechanism of scissor cut also can stretch and fix.So just enlarged the shearing scope of scissors, also with regard to the problem that has solved on the tree of differing heights or fruit or pruning trees are plucked in the position of differing heights in the tree.

In order to realize inventive concept of the present utility model, the utility model one is formed telescoping mechanism by fixed arm (2), telescopic arm (3), dog screw (7); Wherein telescopic arm (3) is inserted in the fixed arm (2) and can moves freely (promptly adopting movingly) vertically, dog screw (7) is screwed on the screw on the fixed arm (2), tighten screw (7) like this and just fixed arm (2), telescopic arm (3) can be fixed, unclamp the length that screw (7) push-and-pull telescopic arm (3) just can be adjusted shear arm.Two form cutting mechanism by fixed handle (1), flexible handle (10), scissors control rope (8), back-moving spring (4), movable blade (5), dead knife (6); Wherein flexible handle (10) can only rotate around the D axle on the fixed handle (1), movable blade (5) can only be rotated around the B axle on the dead knife (6), scissors control rope (8) couples together movable blade (5) and flexible handle (10) respectively at E point and F point, adopt conventional lanyard method just can regulate scissors control rope (8) length according to the telescoping mechanism needs at E point or F point, front end, the another side of one side item of back-moving spring (4) in telescopic arm (3) withstands on the movable blade (5); The annexation of telescoping mechanism and cutting mechanism is that fixed handle (1) fixed arm (2) links into an integrated entity or manufactures one, dead knife (6) and telescopic arm (3) and links into an integrated entity or manufacture one (shown in Figure 1).In use, movable blade (5) is in open configuration under the effect of back-moving spring (4), the flexible handle (10) of holding with a firm grip makes it be rotated counterclockwise around the D axle, drives scissors control rope (8) and moves downward, and the active force that overcomes back-moving spring (4) makes movable blade (5) around the B axle shearing branch that turns clockwise; After shearing finishes, unclamp flexible handle (10), movable blade (5) is rotated counterclockwise around the B axle under the effect of back-moving spring (4), scissors is opened for cutting next branch get ready.

The utility model is a kind of instrument that tree goes up fruit or pruning trees of plucking.Can pluck fruit for economic tree a kind of simple, economic, convenient, reliable, safety is provided according to the telescoping mechanism and the cutting mechanism of the height retractable of tree because the utility model has adopted, do not damage the picker of fruit and trees again.The utility model is specially adapted to set the economic tree harvesting fruit of spinosity, as: its superiority of harvesting Chinese prickly ash is just more obvious.

The telescopic scissors of Fig. 1 single-blade

1. fixed handle 2. fixed arms 3. telescopic arms 4. back-moving springs 5. movable blade

6. dead knife 7. dog screws 8. scissors are controlled rope 9. axis of guides 10. flexible handles

Fixing of Fig. 2 telescopic arm

2. fixed arm 3. telescopic arms 7. setscrew nuts

The telescopic scissors of Fig. 3 three teeth

1. fixed handle 2. fixed arms 3. telescopic arms 4. back-moving springs 7. dog screws 8. scissors are controlled rope 9. axis of guides 10. flexible handles 11. 3 tooth movable blade 12. 3 sword dead knives

Fig. 4 three tooth movable blade

Fig. 5 three tooth dead knives

Telescopic scissors 1. fixed handles of three teeth of Fig. 6 band guipure frame 2. fixed arms 3. telescopic arms 4. back-moving springs 7. dog screws 8. scissors control rope

9. the axis of guide 10. flexible handles 11. 3 tooth movable blade 12. 3 sword dead knives 13. guipure framves

Fig. 7 controls wire clips and tightly installs I

5. movable blade 8. scissors are controlled rope 10. flexible handles 14. clamping elements 15. nuts

Fig. 8 controls wire clips and tightly installs II

5. movable blade 8. scissors are controlled rope 10. flexible handles 16. wedge-shaped elements 17. clamp nuts

On plucking tree, when fruit or pruning trees,, branch will be pushed open during shearing, make it can not finish the shearing operation because scissors opens certain angle is arranged.Therefore the utility model is at the head design toothing hook of dead knife (6) and movable blade (5), and the big limit of angle is towards the blade direction, and the little limit of angle is towards cutter head direction (Fig. 1).When shearing branch, sawtooth blocks branch just and can successfully go up fruit or pruning trees with plucking tree.

On the radially A-A of fixed arm (2) (shown in Figure 1) section, evenly arrange screw hole and dog screw (7), its objective is that fixed arm (2) and telescopic arm (3) length on demand fixes.And a kind of better scheme is evenly to arrange the cannelure or the circular hole relative with screw hole of some rectangles on telescopic arm (3) vertically, also has the boss (see figure 2) at the head of dog screw (7).When screwed in place screw (7), the boss of its head is inserted in the cannelure or circular hole of the rectangle on the telescopic arm (3); So just solve the utility model when work, the problem that fixed arm (2) and telescopic arm (3) are shifted vertically may occur.The scheme of rectangular loop groove only is applicable to that the section of fixed arm (2) and telescopic arm (3) is a rectangle or non-circular, and the circular hole scheme then all is suitable for.

For transferring power effectively, adjust loading angle, the utility model also is equipped with the axis of guide (9) on fixed arm (2) between the B point of the F point on the flexible handle (10) on the movable blade (5), its effect is the power transmission angle that is used for adjusting scissors control rope (8), transferring power makes more reasonable structure effectively.

When on higher tree, plucking fruit or pruning trees,, also just be not easy to aim at the branch that to cut because shear arm is longer.For addressing this problem, the utility model is designed to multiple tooth cutter (Fig. 3, Fig. 4, Fig. 5 are three tooth-like) with movable blade (5) and dead knife (6), and the utility model thinks that 1～5 tooth is the most frequently used.

The installation position of back-moving spring (4) is equipped with two kinds: the compression spring should be installed in the right at the gyroaxis of movable blade (5); Or the extension spring (see figure 6) should be installed on the left side of the gyroaxis of movable blade (5).In order to protect the fruit of plucking, mesh bag frame (13) is housed also on telescopic arm (3); There is the telescopic long-armed scissors of mesh bag frame (13) after loading onto guipure, just the fruit of cutting directly can be packed in the guipure, also just protected fruit.

If scissors control rope (8) uses the rope made of hemp or nylon rope, then fixed form adopts the setting fastening form or fixes with clamp; If scissors control rope (8) uses its fixed form of steel wire rope to adopt clamp to fix.The utility model provides the mechanism of two kinds of fixed blade control ropes (8): first scissors control rope (8) is flexible handle (10) or movable blade (5) on one side, and to be threaded clamping element (14) and flexible handle (10) or movable blade (5) control surface that restrict (8) contact with scissors to another side is respectively plane or less than the circular groove of semicircle; When fastening nut (15), clamping element (14) moves to flexible handle (10) or movable blade (5) and clamps scissors control rope (8); When unclamping nut (15), then can adjust the length of scissors control rope (8) as required.Second kind is that scissors control rope (8) passes clamp nut (17), wedge-shaped element (16), screwed flexible handle (10) or movable blade (5), wherein two outer rings less than semicircle wedge-shaped element (16) are tapers, also have one section to be bellmouth at flexible handle (10) or last the installation in the hole of controlling rope (8) of movable blade (5); When rotatably compressing nut (17), promote two wedge-shaped elements (16) and rely on bellmouth on flexible handle (10) or the movable blade (5), two wedge-shaped elements (13) are shunk to the center, hang on to control rope (8) is installed; When unclamping clamp nut (17), adjust the length of scissors control rope (8) equally.

Claims

1. telescopic long-armed scissors, form by fixed arm (2), flexible handle (10), movable blade (5), dead knife (6), scissors control rope (8), wherein fixed handle (1) and dead knife (6) link into an integrated entity with fixed arm (2) or manufacture an integral body, it is characterized in that: telescopic arm (3) is housed in fixed arm (2), dog screw (7) is housed on the screw of fixed arm (2), between the front end of telescopic arm (3) and the movable blade (5) back-moving spring (4) is housed.

2. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: fixed arm (2) is movingly with its fit form of telescopic arm (3).

3. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: the head in dead knife (6) and movable blade (5) has the zigzag hook, and the big limit of angle is towards the blade direction, and the little limit of angle is towards the cutter head direction.

4. by claim 2 described a kind of telescopic long-armed scissors, it is characterized in that: radially evenly arrange screw hole and dog screw (7) at fixed arm (2).

5. by claim 4 described a kind of telescopic long-armed scissors, it is characterized in that: on telescopic arm (3), evenly arrange the cannelure or the circular hole relative of some rectangles vertically, boss is arranged at the head of dog screw (7) with screw hole.

6. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: on fixed arm (2) between the B point of the F point on the flexible handle (10) on the movable blade (5), the axis of guide (9) is housed also.

7. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: movable blade (5) and dead knife (6) respectively be 1～5 tooth.

8. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: on the right of the gyroaxis of movable blade (5) the compression spring is installed, or extension spring should be installed on the left side of the gyroaxis of movable blade (5).

9. by claim 1 described a kind of telescopic long-armed scissors, it is characterized in that: mesh bag frame (13) also is housed on the telescopic arm (3).

10. the mechanism of fixed blade control rope (8), be made up of flexible handle (10) or movable blade (5), clamping element (14), nut (15), it is characterized in that: the surface that clamping element (14) and flexible handle (10) or movable blade (5) contact with scissors control rope (8) is respectively plane or less than the circular groove of semicircle.

11. the mechanism of a fixed blade control rope (8), form by flexible handle (10) or movable blade (5), wedge-shaped element (16), clamp nut (17), it is characterized in that: have two less than semicircle wedge-shaped element (16), its outer ring is taper, has one section to be bellmouth at flexible handle (10) or last the installation in the hole of controlling rope (8) of movable blade (5).