CN106857024A - A kind of vegetation Pneumatic trimming cutter - Google Patents

Abstract

The invention relates to the technical field of pneumatic tools, and provides a pneumatic pruning tool for vegetation, which includes a cylinder body, an air valve body, a control handle, a piston, a piston rod, a return spring, a movable blade and a fixed blade, and is characterized in that: one end of the cylinder body Connect the gas valve body, the gas valve body is connected with the control handle; the cylinder body is equipped with a piston, the piston rod is installed on the piston rod, and the piston rod is sleeved with a return spring; the other end of the cylinder body is fixed with a fixed blade, a moving blade and a fixed blade Cross rotation connection, one end of the movable blade is movably connected with the piston rod. Both the movable blade and the fixed blade are curved, and a protective cover, a handle and a bumper are added. The invention effectively improves the cutting efficiency, greatly enhances the safety performance, has simple and scientific structure design, and stable working performance.

Description

Pneumatic pruning tool for grass and trees

technical field

The invention relates to the technical field of pneumatic tools, in particular to a pneumatic pruning tool for vegetation.

Background technique

Scissors are commonly used tools in daily life. There are household scissors and medical scissors, which greatly facilitate people's lives. There are many types of scissors and different uses. For example, when pruning the branches and leaves of fruit trees, people will use fruit tree shears. Traditional fruit tree shears are similar to ordinary scissors. The cross-type scissors formed by the principle of leverage are just larger and stronger than ordinary scissors.

Pneumatic scissors appeared later, which greatly improved the efficiency of pruning fruit trees, but there were certain problems in the structural design of the existing pneumatic fruit tree scissors. Potential safety hazards, easy to stab the staff.

Contents of the invention

The object of the present invention is to solve the problems existing in the existing pneumatic fruit tree scissors, and provide a pneumatic pruning tool for grass and trees, which has a simple and scientific structure design, safe and reliable use, stable performance and stable working performance.

To achieve the above object, the present invention adopts the following technical solutions:

A pneumatic pruning tool for vegetation, comprising a cylinder block, an air valve body, a control handle, a piston, a piston rod, a return spring, a movable blade and a fixed blade, and is characterized in that: one end of the cylinder body is connected to the air valve body, and the air valve body is connected with Control handle; a piston is arranged in the cylinder body, a piston rod is installed on the piston, and a return spring is sleeved on the piston rod; the other end of the cylinder body is fixed with a fixed blade, and the moving blade and the fixed blade are cross-rotatingly connected, and one end of the moving blade is connected to the piston rod active connection. Control the exhaust valve core in the air valve body through the control handle, press the control handle, the exhaust valve core opens, the high-pressure gas enters the cylinder body after passing through the air valve body, and pushes the piston; the piston rod moves with the piston, making the movable blade relative to the fixed blade Turn (cutting action) while compressing the return spring. Release the control handle, the exhaust valve core is closed, and the gas is discharged at the same time, the reset spring resets, pushes the piston rod, and the piston resets with the piston rod; at the same time, the movable blade also resets with the piston rod.

Further, both the movable blade and the fixed blade are curved. It can hook the branch when forming a cutting action. This design changes the orientation of the traditional blade and effectively improves the cutting efficiency.

Further, one end of the movable blade is connected to the piston rod through a flat head rivet.

Further, the movable blade and the fixed blade are connected by round head screws, hex nuts and washers.

Further, the piston rod and the piston are connected through threads.

Further, a protective cover is also included, the protective cover is connected with the cylinder block, and the movable blade is stored in the protective cover when not working. It effectively eliminates the potential safety hazards of traditional pneumatic shears and can ensure the safety of staff.

Further, a hand guard is also included, the upper end of the hand guard is connected to the cylinder body through a fixing pin, and the lower end is connected to the gas valve body through a cross-head self-tapping screw, and the hand guard is arranged on the outside of the control handle.

Further, the control handle is connected with the cylinder body through the fixed pin, and the safety lever is installed on the control handle, and the safety lever is connected with the control handle through the fixed pin. The control handle is prevented from being accidentally pressed during use, thereby improving the safety of the grass and tree pneumatic trimming tool and reducing safety risks.

The beneficial effects of the present invention are: a new type of pneumatic pruning tool for grass and trees is provided, the movable blade and the fixed blade of which are curved design, which effectively improves the cutting efficiency; the design of the protective cover, the handle and the bumper greatly enhances Safety performance is ensured; its structural design is simple and scientific, safe and reliable in use, stable in use, and stable in work.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of an exploded structure of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention without the cylinder block and the valve body.

In the figure, 1. Cylinder sealing ring, 2. Piston, 3. Piston rod, 4. Flat head rivet, 5. Return spring, 6. Hex nut, 7. Cylinder block, 8. Protective cover, 9. Hex nut, 10 .Moving blade, 11. Fixed blade, 12. Round head screw, 13. Washer, 14. Hexagon socket bolt, 15. Fixed pin, 16. Fixed pin, 17. Safety lever, 18. Control handle, 19. Fixed pin , 20. Guard handle, 21. Cross head self-tapping screw, 22. Exhaust valve core, 23. Exhaust valve core O-ring, 24. Fixed pin, 25. Air valve body, 26. Air inlet, 27 . Gas valve spring, 28. Upper valve cover.

detailed description

As shown in Fig. 1 to Fig. 3: a kind of vegetation pneumatic pruning cutter, comprises cylinder block 7, cylinder sealing ring 1, piston 2, piston rod 3, return spring 5, moving blade 10, fixed blade 11, air valve body 25, Cylinder block 7 is a cylindrical structure, and one end of cylinder block 7 is connected with gas valve body 25, and gas valve body 25 is provided with gas valve spring 27, upper valve cover 28, exhaust valve core O-ring 23, air inlet 26, cylinder A piston 2 is arranged in the body 7, and a cylinder sealing ring 1 is connected behind the piston 2. A piston rod 3 is installed on the piston 2, and a return spring 5 is sleeved on the piston rod 3. The other end of the cylinder body 7 is fixed with a fixed blade 11. The blade 10 and the fixed blade 11 are connected together by round head screws 12, hexagon nuts 9 and washers 13, the lower end of the movable blade 10 is connected with the top end of the piston rod 3 by flat head rivets 4, and the fixed blade 11 is connected by the hexagon socket bolt 14 and the hexagon The nut 6 is fixed on the cylinder block 7, the cylinder block 7 and the gas valve body 25 are connected with a control handle 18 and a hand guard 20, the control handle 18 is equipped with a bumper 17, the movable blade 10 and the fixed blade 11 are all curved design, The movable blade 10 is received in the protective cover 8 when not working.

The piston rod 3 is connected with the piston 2 by threads.

The working principle is as follows: introduce the gas of the air compressor into the air inlet 26, pull down the safety lever 17, press the control handle 18 once, and the scissors work once, the main principle is as follows, pull down the safety lever 17, and press the control handle 18 times, the gas enters the cylinder body 7 from the air inlet 26, the gas pushes the piston 2 forward, the piston 2 compresses the return spring 5, and at the same time pushes the piston rod 3, and the movable blade 10 connected to the top of the piston rod 3 will circle the circle The head screw 12 rotates quickly and cooperates with the fixed blade 11 to form a cutting action, so as to work once, release the control handle 18, the gas is discharged, and the reset spring 5 on the piston rod 3 will push the piston 2 backward to reset. The piston rod 3 pulls back the movable blade 10, and the movable blade 10 gets back in the protective cover 8. It effectively eliminates the potential safety hazards of traditional pneumatic shears and ensures the safety of staff.

Both the movable blade 10 and the fixed blade 11 are curved, and can hook branches when forming a cutting action. This design changes the orientation of the traditional blades and effectively improves the cutting efficiency.

The control handle 18 is designed as an arc-shaped structure according to the principles of ergonomics, which makes the user more comfortable and convenient.

A safety lever 17 is provided on the control handle 18 to prevent the control handle 18 from being accidentally pressed during use, thereby improving the safety of the pneumatic shears and reducing safety risks.

The structure design of the invention is simple and scientific, safe and reliable in use, stable in use and stable in work performance.

The above is only a specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto, and any changes or replacements that do not come to mind through creative work shall be covered within the scope of protection of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims (8)

1. it is a kind of vegetation Pneumatic trimming cutter, including cylinder block, air valve body, joystick, piston, piston rod, back-moving spring, dynamic Blade and ledger-plate, it is characterised in that：Cylinder block one end connects air valve body, and joystick is connected with air valve body；In cylinder block Piston is provided with, piston rod is installed on piston, upper cover of piston rod is connected to back-moving spring；The other end of cylinder block is fixed with ledger-plate, Cutting blade and ledger-plate intersect rotation connection, and one end of cutting blade and piston rod are flexibly connected.

2. vegetation Pneumatic trimming cutter according to claim 1, it is characterised in that：Cutting blade and ledger-plate are bending and set Meter.

3. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：One end of cutting blade and piston rod Connected by flat head rivet.

4. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：Cutting blade and ledger-plate are by circle Head screw, hex nut and pad connection.

5. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：Piston rod passes through screw thread with piston Connection.

6. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：Also include protective cover, protective cover with Cylinder block is connected, and cutting blade is received in protective cover when not working.

7. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：Also include handguard handle, handguard is upper End is connected by steady pin and cylinder block, and lower end is connected by crosshead tapping screw and air valve body, and handguard is being arranged on control The outside of handle.

8. vegetation Pneumatic trimming cutter according to claim 1 and 2, it is characterised in that：Joystick by steady pin and Cylinder block is connected, and bumper bar is equipped with joystick, and bumper bar is connected by steady pin and joystick.