CN107926327B

CN107926327B - High-altitude pneumatic pruning shears

Info

Publication number: CN107926327B
Application number: CN201711362850.6A
Authority: CN
Inventors: 侯义龙; 蔡军; 邓本贵
Original assignee: Dalian University
Current assignee: Dalian University
Priority date: 2017-06-28
Filing date: 2017-06-28
Publication date: 2020-05-19
Anticipated expiration: 2037-06-28
Also published as: CN107231953B; CN107926327A; CN107231953A

Abstract

The invention discloses a high-altitude pneumatic pruning shear, which comprises: the device comprises wheel type scissors, a pull-back spring, a cylinder, a reinforcing plate, a connector, a fixing plate, a telescopic rod and a Bluetooth switch module; a handle of the wheel type scissors is a rotating handle, the rotating handle is matched with the connector through a groove and a wheel, the other handle is fixed on the fixing plate, the connector is installed on a push rod of the air cylinder, a pull-back spring is arranged on the push rod, one end of the air cylinder is fixed on the fixing plate, the other end of the air cylinder is fixed on the reinforcing plate, the reinforcing plate is connected with the fixing plate, and the top of the telescopic rod is fixed on the reinforcing plate; the push stroke of the cylinder is further controlled by controlling the on-off of the electromagnetic valve switch through the Bluetooth switch module. The cutter has the advantages of simple, light and reasonable structure, durability, large operation range, high production efficiency, low labor intensity and the like.

Description

High-altitude pneumatic pruning shears

The application is a divisional application with the application number of 2017105052491, application date of 2017, 06 and 28, and the invention name of high-altitude pneumatic pruning shears based on the Bluetooth technology.

Technical Field

The invention relates to a pair of high-altitude pneumatic pruning shears.

Background

At present, machines for pruning trees at home and abroad have various forms such as a hand-held backpack type, a vehicle-mounted type, an automatic type and the like. Wherein, the handheld backpack pruning machine is taken as a main tool, and the handheld backpack pruning machine has two types of unpowered and powered. The power matched with the powered pruning machine comprises pneumatic power, hydraulic transmission, electric power, small gasoline engine, small diesel engine and other additional power. The vehicle-mounted pruning machine is characterized in that a hydraulic folding arm is mounted on a tractor, a hydraulic shear capable of reciprocating is arranged at the end of the folding arm and used for pruning tree crowns, shrubs or ground weeds in a large area, and people are sent to different height positions through a vehicle-mounted automatic lifting platform for manual pruning.

The existing automatic stumpage pruning machine realizes remote control pruning operation. The existing pruning shears have the advantages of large-area pruning, strong working capacity, no restriction on the diameter and height of the pruned branches and the like; but also has more defects, such as complex mechanism, heavy weight and high manufacturing cost; the requirement on the physical quality of an operator is high, and the safety is not guaranteed; the power source also adopts a gasoline engine, which has great influence on the environment.

Disclosure of Invention

To the above-mentioned not enough of trees pruning scissors existence, this application provides a pneumatic pruning scissors in high altitude, and it has operating safety factor height, and mechanized even intelligent degree is high and simple structure, light, reasonable, cutter durable, and the working range is big, production efficiency is high and intensity of labour advantage such as little.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: high altitude pneumatic pruning scissors includes: the device comprises wheel type scissors, a pull-back spring, a cylinder, a reinforcing plate, a connector, a fixing plate, a telescopic rod and a Bluetooth switch module; a handle of the wheel type scissors is a rotating handle, the rotating handle is matched with the connector through a groove and a wheel, the other handle is fixed on the fixing plate, the connector is installed on a push rod of the air cylinder, a pull-back spring is arranged on the push rod, one end of the air cylinder is fixed on the fixing plate, the other end of the air cylinder is fixed on the reinforcing plate, the reinforcing plate is connected with the fixing plate, and the top of the telescopic rod is fixed on the reinforcing plate; the push stroke of the cylinder is further controlled by controlling the on-off of the electromagnetic valve switch through the Bluetooth switch module.

Further, the connector includes: the device comprises a shaft a, a shaft b, a rod end bearing, a thin-wall bearing a, a thin-wall bearing b, a flange shaft sleeve, a distance adjusting sheet a, a distance adjusting sheet b and a bearing sleeve; the shaft a penetrates through the distance adjusting sheets a and b, the thin-wall bearing a is fixed at the end part of the shaft a, and the bearing sleeve is sleeved on the outer periphery of the thin-wall bearing a; the shaft b sequentially penetrates through the flange shaft sleeve, the distance adjusting sheet a, the rod end bearing and the distance adjusting sheet b, and the thin-wall bearing b is fixed at the end part of the shaft b.

Further, when the electromagnetic valve switch is electrified, the cylinder stroke pushing interface is communicated with the high-pressure bottle; when the electromagnetic valve switch is powered off, the cylinder push-stroke interface is communicated with the atmosphere and is at normal pressure. And the return stroke of the cylinder push rod is realized by pulling the cylinder push rod back to the state before pruning by a pull-back spring.

Further, the high-pressure bottle can be supplemented with a pressure source by a portable pedal high-pressure inflator.

Due to the adoption of the technical scheme, the invention can obtain the following technical effects:

1. the pruning shears adopt a novel Bluetooth technology for braking;

2. the telescopic rod solves the problem of complicated high-altitude pruning;

3. the cylinder and the high-pressure bottle are combined to serve as a power source, the cylinder works stably, the high-pressure bottle can supplement the pressure source by the portable pedal high-pressure inflator, the energy-saving effect is good, and green and carbon-free energy is achieved;

4. the pruning shears have adjustable pruning height, bring convenience for people in different fields and different requirements, and have good application prospect.

Drawings

The invention has the following figures 2:

FIG. 1 is a schematic view of a high altitude pneumatic pruning shear;

fig. 2 is a schematic view of the connecting head structure.

The number in the figure illustrates 1, wheel type scissors; 2. a pullback spring; 3. a cylinder; 4. a reinforcing plate; 5. a telescopic rod; 6. a fixing plate; 7. a connector; 51. a shaft a; 52. a shaft b; 53. a flange shaft sleeve; 54. a rod end bearing; 55. a distance adjusting sheet b; 56. a thin-walled bearing b; 57. a bearing housing; 58. distance adjusting piece a.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

The embodiment provides a high altitude pneumatic pruning scissors, includes: the device comprises wheel type scissors, a pull-back spring, a cylinder, a reinforcing plate, a connector, a fixing plate, a telescopic rod and a Bluetooth switch module; a handle of the wheel type scissors is a rotating handle, the rotating handle is matched with the connector through a groove and a wheel, the other handle is fixed on the fixing plate, the connector is installed on a push rod of the air cylinder, a pull-back spring is arranged on the push rod, one end of the air cylinder is fixed on the fixing plate, the other end of the air cylinder is fixed on the reinforcing plate, the reinforcing plate is connected with the fixing plate, and the top of the telescopic rod is fixed on the reinforcing plate; the push stroke of the cylinder is further controlled by controlling the on-off of the electromagnetic valve switch through the Bluetooth switch module.

Example 2

As a further limitation on embodiment 1, the connecting head includes: the device comprises a shaft a, a shaft b, a rod end bearing, a thin-wall bearing a, a thin-wall bearing b, a flange shaft sleeve, a distance adjusting sheet a, a distance adjusting sheet b and a bearing sleeve; the shaft a penetrates through the distance adjusting sheets a and b, the thin-wall bearing a is fixed at the end part of the shaft a, and the bearing sleeve is sleeved on the outer periphery of the thin-wall bearing a; the shaft b sequentially penetrates through the flange shaft sleeve, the distance adjusting sheet a, the rod end bearing and the distance adjusting sheet b, and the thin-wall bearing b is fixed at the end part of the shaft b.

The pruning shears adopt a telescopic rod to be manually adjusted to enable the shears to be partially adjusted to the height desired by an operator, then the pushing distance of a single-action cylinder is controlled by changing the on-off of a solenoid valve switch (type 3V210-08, and an air inlet and an air outlet are reversely connected) through manually controlling a Bluetooth switch module, the single-action cylinder is a basic element in the cylinder, the single-action cylinder only has one-direction movement and is driven by air pressure, and the resetting is driven by spring force or dead weight or other external forces. The power is transmitted to the rotating handle of the scissors through the connector, and the pruning of the branches is realized. When the electromagnetic valve switch is electrified, the push-stroke interface of the air cylinder is communicated with the high-pressure bottle, and branches at the scissor opening are cut off. When the electromagnetic valve switch is powered off, the cylinder push-stroke interface is communicated with the atmosphere and is at normal pressure, and the cylinder push rod and the connector are pulled back to the state before working by the pull-back spring. The high-pressure bottle can be supplemented with a pressure source by a portable pedal high-pressure inflator. The bearing sleeve of the thin-wall bearing a slides in the groove of the rotating handle, and the radial distance between the two outlines of the bearing sleeve and the thin-wall bearing b is greater than the thickness of the bottom of the scissors.

In the embodiment, the pruning shears are made of main elements such as M16 × 75 single-acting cylinders, a DC12V student power supply, a 12V two-position three-way electromagnetic valve switch, labor-saving wheel type shears and the like; a bottle with the volume of 2L and the pressure of 8Kpa is used as an air pressure source, and an air inlet and an air outlet of a solenoid valve switch are reversely connected, so that the pruning shear can carry out effective pruning for about 30 times, the shearing diameter is less than or equal to 15mm, and branches with the height of less than 10 meters can be pruned according to the calculation of the effective working range of Bluetooth.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. High altitude pneumatic pruning scissors, its characterized in that includes: the device comprises wheel type scissors, a pull-back spring, a cylinder, a reinforcing plate, a connector, a fixing plate, a telescopic rod and a Bluetooth switch module; a handle of the wheel type scissors is a rotating handle, the rotating handle is matched with the connector through a groove and a wheel, the other handle is fixed on the fixing plate, the connector is installed on a push rod of the air cylinder, a pull-back spring is arranged on the push rod, one end of the air cylinder is fixed on the fixing plate, the other end of the air cylinder is fixed on the reinforcing plate, the reinforcing plate is connected with the fixing plate, and the top of the telescopic rod is fixed on the reinforcing plate; the push stroke of the cylinder is controlled by controlling the on-off of the electromagnetic valve switch through the Bluetooth switch module; the connector includes: the device comprises a shaft a, a shaft b, a rod end bearing, a thin-wall bearing a, a thin-wall bearing b, a flange shaft sleeve, a distance adjusting sheet a, a distance adjusting sheet b and a bearing sleeve; the shaft a penetrates through the distance adjusting sheets a and b, the thin-wall bearing a is fixed at the end part of the shaft a, and the bearing sleeve is sleeved on the outer periphery of the thin-wall bearing a; the shaft b sequentially penetrates through the flange shaft sleeve, the distance adjusting sheet a, the rod end bearing and the distance adjusting sheet b, and the thin-wall bearing b is fixed at the end part of the shaft b;

when the electromagnetic valve switch is electrified, the cylinder push-stroke interface is communicated with the high-pressure bottle; when the electromagnetic valve switch is powered off, the cylinder stroke pushing interface is communicated with the atmosphere and is at normal pressure; the return stroke of the cylinder push rod is that the cylinder push rod is pulled back to the state before pruning by a pull-back spring; the high-pressure bottle can supplement a pressure source by a portable pedal high-pressure inflator;

the bearing sleeve of the thin-wall bearing a slides in the groove of the rotating handle, and the radial distance between the two outlines of the bearing sleeve and the thin-wall bearing b is greater than the thickness of the bottom of the scissors.