CN109452018B

CN109452018B - Pruning device capable of being clamped and fixed

Info

Publication number: CN109452018B
Application number: CN201811373937.8A
Authority: CN
Inventors: 苏沛群; 傅晓亮
Original assignee: Changzhou College of Information Technology CCIT
Current assignee: Changzhou College of Information Technology CCIT
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2020-10-09
Anticipated expiration: 2038-11-19
Also published as: CN109452018A

Abstract

The invention discloses a pruning device capable of being clamped and fixed, which is characterized in that: the device comprises a support rod assembly, a shearing assembly, a first driving device, 2 groups of transmission assemblies, a clamping assembly and a second driving device; the stay bar component comprises a stay bar, a lower mounting seat, a strap lifting ring and a strap; the strap hanging ring is fixedly arranged on the upper side of the front part of the lower mounting seat and is fixedly connected with the strap; the lower mounting seat is welded and fixed on the lower part of the stay bar; the first driving device is fixedly arranged on the left part of the lower mounting seat; a first driving device drives a front cutter bar and a rear cutter bar of the shearing assembly to carry out shearing operation through a left transmission assembly; a piston rod of the second air cylinder drives a front clamping arm and a rear clamping arm of the clamping assembly through a right side transmission assembly to perform clamping and positioning operation; and the extension and retraction of the piston rod of the second cylinder, the speed during extension and the speed during retraction are controlled by a second two-position five-way manual reversing valve and a one-way speed regulating valve.

Description

Pruning device capable of being clamped and fixed

Technical Field

The invention relates to the technical field of branch pruning tools, in particular to a high-altitude pruning device for pruning branches at high altitude.

Background

Trees are tall woody tissue plants represented by "branches" and "stems" and also "leaves", which can survive for decades. Generally, a tree is called as a tree, has an obvious upright trunk, is generally tall and large, has a branch with a higher distance from the ground, and can form a crown. Trees and green plants can be continuously subjected to photosynthesis, carbon dioxide is consumed, and fresh oxygen is produced; more than 60% of the oxygen in the air comes from trees and green plants on land, so people compare the trees and green plants to "oxygen manufacturing plant" and "fresh air processing plant".

The method is used for planting trees and grass in cities, covering certain ground or space or installing certain flowers, playing a role in beautifying and decorating on one hand, and improving the quality of the environment depending on the survival of human beings on the other hand, namely the urban greening. Trees are important elements in urban greening, and the trees achieve ideal plant shapes through reasonable pruning, so that the garden plants have beautiful colors, beautiful charms and beautiful shapes, and the plants coordinate with the surrounding building environment. The over-vigorous growth of the plants can be controlled through pruning, and the tree vigor is balanced; the method can be used for carrying out severe pruning on the aged trees, and can achieve the effect of renewal and rejuvenation, so that the vigorous vitality of the plants is recovered, the service life of the plants is prolonged, and the long-term and stable landscape effect is kept. When trees grow higher and higher, people stand on the ground and cannot trim branches at high positions through a common pruning tool, the branches must be trimmed by using a climbing tool or climbing a tree, and an axe and a handsaw are used for trimming, so that the difficulty coefficient is high, the risk is high, and high-altitude falling accidents are easily caused. In another situation, the branches also need to be trimmed, namely the tree barriers along the transmission line are cleaned. When the distance between the electric power high-voltage line and the tree exceeds the specified safe distance, the high-voltage line can discharge electricity to the tree, if the high-voltage line is rainy or the air humidity is too high, the tree can become an electric conductor under the action of high voltage, and the tree harms buildings, equipment and personnel around the tree, so that the tree branches must be trimmed. Also there are some pruning instruments now to solve the pruning problem of eminence branch through the form of telescopic link, but these pruning instruments use comparatively inconveniently, and the branch rocks during shearing operation and is difficult to be cut, wastes time and energy.

Disclosure of Invention

The invention aims to provide a high-altitude pruning device which is simple in structure, can clamp and fix branches during shearing, keeps the stability of the branches and improves the shearing effect.

The basic technical scheme for realizing the purpose of the invention is as follows: a pruning device capable of being clamped and fixed is structurally characterized in that: the shearing device comprises a support rod assembly, a shearing assembly, a first driving device, a transmission assembly, a clamping assembly and a second driving device. The transmission assemblies comprise 2 groups, the structures of the 2 groups of transmission assemblies are the same, and the 2 groups of transmission assemblies are divided into a left transmission assembly and a right transmission assembly according to the left position and the right position of the transmission assemblies. The stay bar assembly comprises a stay bar, a lower mounting seat, a strap lifting ring and a strap. The strap rings are fixedly arranged on the upper side of the front part of the lower mounting seat and are fixedly connected with the straps. The lower mounting seat is welded and fixed on the lower part of the stay bar. The shearing assembly comprises a front cutter rod, a rear cutter rod and a first pressure spring. The shearing assembly is arranged on the upper portion of the supporting rod, and the first pressure spring is arranged between the front cutter bar and the rear cutter bar and used for enabling the front cutter bar and the rear cutter bar to reset to an opening state after shearing operation is completed. The clamping assembly comprises a front clamping arm, a rear clamping arm and a second pressure spring. The clamping assembly is arranged on the upper portion of the supporting rod, and the second pressure spring is arranged between the front clamping arm and the rear clamping arm and used for enabling the front clamping arm and the rear clamping arm to reset to an upper portion opening state after clamping operation is completed. The shearing assembly and the clamping assembly are respectively arranged on the left side and the right side of the support rod along the radial direction of the support rod. The first driving device is fixedly arranged on the left part of the lower mounting seat. The first driving device drives the front cutter bar and the rear cutter bar of the shearing assembly to carry out shearing operation through the left transmission assembly.

The second driving device comprises a second cylinder, a second two-position five-way manual reversing valve and a one-way speed regulating valve. The second cylinder is fixedly arranged on the right part of the upper side of the lower mounting seat by a cylinder body of the second cylinder along the vertical direction, and a piston rod of the second cylinder penetrates through the lower mounting seat downwards. And a piston rod of the second cylinder drives a front clamping arm and a rear clamping arm of the clamping assembly to perform clamping and positioning operation through the right-side transmission assembly. And the extension and retraction of the piston rod of the second cylinder, the speed during extension and the speed during retraction are controlled by a second two-position five-way manual reversing valve and a one-way speed regulating valve.

The technical scheme based on the basic technical scheme is as follows: and a second cylinder and a second two-position five-way manual reversing valve of the second driving device are both made of aluminum alloy materials. The second cylinder is a double-acting cylinder. The upper part of the second cylinder is provided with an upper air inlet of the second cylinder, and the lower part of the second cylinder is provided with a lower air inlet of the second cylinder. The front side of the valve body of the second two-position five-way manual reversing valve is sequentially provided with a first connector and a second connector from left to right, and the rear side of the valve body of the second two-position five-way manual reversing valve is sequentially provided with a third connector, a fourth connector and a fifth connector from left to right. And a second manual push rod is arranged in the middle of the valve body of the second two-position five-way manual reversing valve, the second manual push rod is arranged in the valve body in a sliding manner, and the corresponding part of the right part of the second manual push rod extends out of the valve body. The left end of the second two-position five-way manual reversing valve is also provided with a steel ball positioning component. The left part of the second manual push rod is sequentially provided with 2 annular clamping grooves which are matched with the steel ball positioning components and have outward openings from left to right. When the annular clamping groove on the left side of the second manual push rod is matched with the steel ball positioning assembly to form clamping and fixing positioning, the second interface and the fourth interface of the second two-position five-way manual reversing valve are communicated, and the first interface and the third interface are communicated. When the second manual push rod is pushed leftwards to enable the second manual push rod to move leftwards to enable the annular clamping groove on the right side of the second manual push rod to be matched with the steel ball positioning assembly to form clamping and fixing positioning, the first connector and the fourth connector of the second two-position five-way manual reversing valve are communicated, and the second connector and the fifth connector are communicated. And an exhaust silencer is arranged on a third interface of the second two-position five-way manual reversing valve. And an exhaust silencer is arranged on the fifth interface. The fourth interface is hermetically communicated with an air source through a corresponding pipeline. And a first interface of the second two-position five-way manual reversing valve is hermetically communicated with an air inlet of the one-way speed regulating valve through a corresponding pipeline. And the air outlet of the one-way speed regulating valve is hermetically communicated with the air inlet on the second cylinder of the second cylinder through a corresponding pipeline. And a second port of the second two-position five-way manual reversing valve is hermetically communicated with a lower air inlet of a second cylinder of the second cylinder through a corresponding pipeline.

The technical scheme based on the corresponding technical schemes is as follows: the strut assembly also includes an upper mounting plate and an upper mounting shaft. The support rod is made of hard aluminum alloy material and is in a hollow tubular shape. The upper mounting plate is fixedly welded on the upper end of the stay bar. The upper mounting shaft is fixedly welded on the upper mounting plate along the radial direction of the stay bar and is arranged along the left-right direction. The lower mounting seat is a circular mounting plate, a mounting through hole penetrating through the lower mounting seat is formed in the center of the lower mounting seat, the lower mounting seat is sleeved on the support rod through the mounting through hole, and the lower mounting seat is coaxially and fixedly connected with the support rod in a welding mode.

The clamping assembly further comprises a second front connecting rod, a second rear connecting rod and a second connecting seat. The middle parts of the front clamping arm and the rear clamping arm are hinged together through the right end of the upper mounting shaft, so that the upper parts form a clamping structure. The inner sides of the front clamping arm and the rear clamping arm which are clamped oppositely are provided with protective pads, and the protective pads are made of rubber materials. The upper part of the second front connecting rod is hinged with the lower part of the front clamping arm through a corresponding pin shaft. The upper part of the second rear connecting rod is hinged with the lower part of the rear clamping arm through a corresponding pin shaft. The lower end of the second front connecting rod and the lower end of the second rear connecting rod are coaxially hinged to the second connecting seat. The piston rod of the right second driving cylinder downwards pulls the second connecting seat through the transmission assembly, so that the upper parts of the front clamping arm and the rear clamping arm are close to each other, and branches are clamped and fixed.

The technical scheme based on the corresponding technical schemes is as follows: the right side transmission assembly comprises an upper roller support, a lower roller support, a roller, a lower bearing support, a lower bearing and a steel wire rope. The lower bearing adopts a thrust angular contact ball bearing. The number of the rollers is 4, and the 4 rollers are sequentially called a first roller, a second roller, a third roller and a fourth roller. The lower bearing of the right side transmission assembly is fixedly arranged on the lower end of the piston rod of the second cylinder through the inner ring of the lower bearing, and the lower bearing of the right side transmission assembly is fixedly arranged in the lower bearing support of the right side transmission assembly through the outer ring of the lower bearing.

The right side of the upper part of the stay bar is provided with a third steel wire hole penetrating through the stay bar. The right side of the lower part of the stay bar is provided with a fourth steel wire hole penetrating through the stay bar. The fourth steel wire hole is positioned at the lower side of the lower mounting seat.

The upper roller bracket of the right transmission assembly is fixedly arranged on the right side of the upper part of the support rod, and the corresponding part is positioned in the third steel wire hole of the support rod. The first idler wheel is rotatably arranged on the outer side of the upper idler wheel support and located outside the support rod. The second roller is rotatably arranged on the inner side of the upper roller bracket and is positioned in the third steel wire hole. The lower roller support is fixedly arranged on the right side of the lower part of the support rod, and the corresponding part is positioned in the fourth steel wire hole of the support rod. The third roller is rotatably arranged on the inner side of the lower roller bracket and is positioned in the fourth steel wire hole. The fourth roller is rotatably arranged on the outer side of the lower roller support and is positioned outside the support rod. One end of the steel wire rope is fixedly connected with the lower bearing support, the other end of the steel wire rope sequentially bypasses the upper side of the fourth roller and the lower side of the third roller and then enters the support rod from the fourth steel wire hole, upwards bypasses the upper side of the second roller and then penetrates out of the support rod from the third steel wire hole, and then bypasses the first roller from the lower side and then is fixedly connected with the second connecting seat of the clamping assembly.

The technical scheme based on the corresponding technical schemes is as follows: the first drive means comprises an impact cylinder. The piston rod of the impact cylinder drives the front cutter bar and the rear cutter bar of the shearing assembly through the left transmission assembly to perform shearing operation.

The technical scheme based on the corresponding technical schemes is as follows: the first driving device further comprises a first two-position five-way manual reversing valve. The impact cylinder and the first two-position five-way manual reversing valve are both made of aluminum alloy materials. The impact cylinder is fixedly arranged on the left part of the upper side of the lower mounting seat along the vertical direction by a cylinder cover, and a piston rod of the impact cylinder downwards penetrates through the lower mounting seat. The upper side of the piston of the impact cylinder is provided with a rubber pad. The upper part of the middle cover of the impact cylinder is an energy storage cavity, and the upper part of the impact cylinder is provided with an energy storage cavity interface communicated with the energy storage cavity. The piston of the impact cylinder divides the portion below the middle cap into an upper tail chamber and a lower head chamber. The lower part of the impact cylinder is provided with a head cavity interface communicated with the lower head cavity. The middle cover of the impact cylinder is provided with an air leakage opening communicated with the upper tail cavity. The air release opening is provided with an exhaust silencer. And an adjusting needle valve is arranged on a passage between the exhaust silencer and the upper tail cavity.

The valve body front side of the first two-position five-way manual reversing valve is sequentially provided with a first interface and a second interface from left to right, and the valve body rear side of the first two-position five-way manual reversing valve is sequentially provided with a third interface, a fourth interface and a fifth interface from left to right. A first manual push rod is arranged in the middle of a valve body of the first two-position five-way manual reversing valve, the first manual push rod is arranged in the valve body in a sliding mode, and the corresponding part of the left part of the first manual push rod extends out of the valve body. A first compression spring is arranged between the right end of the first manual push rod and the corresponding part in the valve body, and the first compression spring is used for pushing the first manual push rod to the left, so that the first connector is communicated with the fourth connector, and the second connector is communicated with the fifth connector. And an exhaust silencer is arranged on the third interface. And an exhaust silencer is arranged on the fifth interface. And the fourth interface is hermetically communicated with an air source through a corresponding pipeline. The first interface is hermetically communicated with the head cavity interface through a corresponding pipeline. The second interface is hermetically communicated with the energy storage cavity interface through a corresponding pipeline.

The shearing assembly further comprises a first front connecting rod, a first rear connecting rod and a first connecting seat. The upper portions of the front cutter bar and the rear cutter bar are provided with corresponding cutting edges, and the middle portions of the front cutter bar and the rear cutter bar are hinged together through the left end of the upper mounting shaft, so that the upper portions form a closed shearing structure. The upper part of the first front connecting rod is hinged with the lower part of the front cutter bar through a corresponding pin shaft. The upper part of the first rear connecting rod is hinged with the lower part of the rear cutter bar through a corresponding pin shaft. The lower end of the first front connecting rod and the lower end of the first rear connecting rod are coaxially hinged to the first connecting seat. The first connecting seat is pulled downwards by a piston rod of the impact cylinder through the transmission assembly, so that the upper parts of the front cutter bar and the rear cutter bar are closed to cut off branches.

The technical scheme based on the corresponding technical schemes is as follows: the left side transmission assembly comprises an upper roller support, a lower roller support, a roller, a lower bearing support, a lower bearing and a steel wire rope. The lower bearing adopts a thrust angular contact ball bearing. The number of the rollers is 4, and the 4 rollers are sequentially called a first roller, a second roller, a third roller and a fourth roller. The lower bearing of the left transmission assembly is fixedly arranged on the lower end of the piston rod of the impact cylinder through the inner ring of the lower bearing, and the lower bearing of the left transmission assembly is fixedly arranged in the lower bearing support of the left transmission assembly through the outer ring of the lower bearing.

The left side of the upper part of the stay bar is provided with a first steel wire hole which penetrates through the stay bar. And a second steel wire hole penetrating through the inner part and the outer part of the strut is formed in the left side of the lower part of the strut and is positioned on the lower side of the lower part mounting seat.

The upper roller bracket of the left transmission assembly is fixedly arranged on the left side of the upper part of the support rod, and the corresponding part is positioned in the first steel wire hole of the support rod. The first idler wheel is rotatably arranged on the outer side of the upper idler wheel support and located outside the support rod. The second roller is rotatably arranged on the inner side of the upper roller bracket and is positioned in the first steel wire hole. The lower roller support is fixedly arranged on the left side of the lower part of the support rod, and the corresponding part is positioned in the second steel wire hole of the support rod. The third roller is rotatably arranged on the inner side of the lower roller bracket and is positioned in the second steel wire hole. The fourth roller is rotatably arranged on the outer side of the lower roller support and is positioned outside the support rod. One end of the steel wire rope is fixedly connected with the lower bearing support, the other end of the steel wire rope sequentially winds around the upper side of the fourth roller and the lower side of the third roller and then enters the support rod from the second steel wire hole, upwards winds around the upper side of the second roller and then penetrates out of the support rod from the first steel wire hole, and then winds around the first roller from the lower side and then is fixedly connected with the first connecting seat of the shearing assembly.

The technical scheme based on the corresponding technical schemes is as follows: the brace bar assembly further comprises a gripping sleeve. The gripping sleeve is made of rubber materials and is coated on the periphery of the lower part of the support rod, so that the hand feeling comfort degree and firmness of the support rod during gripping are increased.

The invention has the following beneficial effects: (1) the pruning device capable of clamping and fixing can be used for shearing branches which cannot be reached by hands at a high position, and is simple and compact in structure and convenient to operate. The clamping assembly can clamp the branches of the reserved parts during shearing operation, so that the device is relatively fixed with the branches, the branches can not shake when an operator shears the branches during shearing, the position of the scissors relative to the branches to be sheared is accurate, two shearing edges of the scissors basically keep equal distance with the shearing position of the branches, the stability of the branches during shearing is improved, the shearing effect is greatly improved, and physical strength consumption caused by shaking during shearing can be avoided. The second driving device for driving the clamping assembly is provided with a one-way speed regulating valve, and the extension and retraction as well as the extension speed and the retraction speed of the piston rod of the second cylinder can be controlled through the one-way speed regulating valve, so that the folding and opening speeds of the front clamping arm and the rear clamping arm during clamping operation can be regulated.

(2) The supporting rod of the pruning device capable of being clamped and fixed is made of hard aluminum alloy materials, and the impact cylinder, the first two-position five-way manual reversing valve, the second cylinder and the second two-position five-way manual reversing valve are all made of aluminum alloy materials, so that the whole weight is light, and the pruning device is labor-saving to use; and impact cylinder, first two-position five-way manual reversing valve, second cylinder and second two-position five-way manual reversing valve all set up in the lower part, and stability is better during the use.

(3) The shearing assembly is driven by the first driving device, the first driving device adopts the impact air cylinder, the impact force which is several times larger than the normal air pressure acting force can be provided instantly, the piston rod can reach very high speed (about 10-15 times of the speed of the common air cylinder under the same condition) instantly, the acting force is large, the front cutter bar and the rear cutter bar of the shearing assembly can be driven to shear branches at very high speed, the efficiency is high, thicker branches can be sheared, and the application range is wide.

(4) The middle cover of the impact cylinder is provided with the adjusting needle valve, and the exhaust speed can be adjusted through the adjusting needle valve, so that the upward speed of the piston of the impact cylinder is adjusted, the excessive upward speed is prevented, and the piston and the middle cover are prevented from generating larger impact when colliding. The upper side of the piston is provided with a rubber pad, and the rubber pad on the piston is collided with the middle cover, so that the buffer protection effect can be realized.

(5) When the piston rod moves downwards, the steel wire rope of the transmission assembly is connected with the head of the corresponding piston rod through the lower bearing support and the lower bearing, so that the problem that the stay wire is likely to deviate when the piston rod moves is effectively solved, and the use reliability is greatly improved.

(6) The pruning device capable of being clamped and fixed adopts an air source as a power source, does not need a power source, only needs a gasoline engine to drive a small air pump when in use, and can be used in more environments, particularly when branches along a power transmission line are cleaned in the field.

(7) The pruning device capable of being clamped and fixed is further provided with the strap hanging ring, the strap hanging ring is fixedly connected with the strap when the pruning device is used, an operator carries the strap on the body, the labor intensity of the operator is favorably reduced, the pruning device is convenient for the operator with small strength to hold the pruning device by one body, and the pruning device is more convenient to use.

Drawings

FIG. 1 is a schematic view of a clampable pruning device according to the present invention;

FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 taken along line A with the clamping assembly removed;

FIG. 3 is an enlarged view of a portion of FIG. 1 taken along line B with the shear assembly removed;

FIG. 3-1 is an enlarged schematic view of the rear clamp arm as viewed from direction G of FIG. 3;

FIG. 4 is an enlarged schematic view of the cutting assembly of FIG. 2 in a closed position when cutting a branch;

FIG. 5 is an enlarged view of the clamping assembly of FIG. 3 in a clamping position for clamping a tree limb;

FIG. 6 is an enlarged view of section E of FIG. 1;

FIG. 7 is an enlarged view of section F of FIG. 1;

FIG. 8 is an enlarged cross-sectional view of C-C of FIG. 6;

FIG. 9 is an enlarged cross-sectional view taken along line D-D of FIG. 7;

FIG. 10 is an enlarged cross-sectional view of Q-Q of FIG. 6;

FIG. 11 is an enlarged schematic view of the brace assembly of FIG. 1;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a left side schematic view of FIG. 11;

FIG. 14 is a schematic right side view of FIG. 11;

FIG. 15 is an enlarged schematic view of an upper roller carriage of the transmission assembly of FIG. 1;

FIG. 16 is a left side schematic view of FIG. 15;

FIG. 17 is a top view of FIG. 15;

FIG. 18 is an enlarged schematic view of a lower roller carriage of the transmission assembly of FIG. 1;

FIG. 19 is a left side schematic view of FIG. 18;

FIG. 20 is a top view of FIG. 18;

fig. 21 is a schematic structural view of a stay bar assembly of a pruning device capable of clamping and fixing according to embodiment 2 of the present invention.

The reference numbers in the drawings are:

a stay bar component 1, a stay bar 1-1, a first steel wire hole 1-11, a second steel wire hole 1-12, a third steel wire hole 1-13, a fourth steel wire hole 1-14,

a lower mounting seat 1-2, an upper mounting plate 1-3, an upper mounting shaft 1-4, a holding sleeve 1-5, a strap hoisting ring 1-6,

a shearing component 2, a front cutter bar 2-1, a rear cutter bar 2-2, a first front connecting rod 2-3, a first rear connecting rod 2-4, a first connecting seat 2-5, a first pressure spring 2-6,

a first driving device 3, an impact cylinder 3-1, a middle cover 3-11, a gas release port 3-111, an exhaust silencer 3-11-1, an adjusting needle valve 3-11-2, an energy storage cavity 3a, an energy storage cavity interface 3a-1, an upper tail cavity 3b-1, a lower head cavity 3b-2, a head cavity interface 3b-21 and a rubber pad 3-12,

a first two-position five-way manual reversing valve 3-2, a first connector 3-21, a second connector 3-22, a third connector 3-23, a fourth connector 3-24, a fifth connector 3-25, a first manual push rod 3-26, a first compression spring 3-27,

a transmission component 4, a left transmission component 4a, a right transmission component 4b, an upper roller bracket 4-1, a lower roller bracket 4-2, rollers 4-3, a first roller 4-31, a second roller 4-32, a third roller 4-33, a fourth roller 4-34, a lower bearing support 4-4, a lower bearing 4-5 and a steel wire rope 4-6,

a clamping component 5, a front clamping arm 5-1, a rear clamping arm 5-2, a second front connecting rod 5-3, a second rear connecting rod 5-4, a second connecting seat 5-5, a second pressure spring 5-6 and a protective pad 5-7,

a second driving device 6, a second cylinder 6-1, a second cylinder upper air inlet 6-11, a second cylinder lower air inlet 6-12,

a second two-position five-way manual reversing valve 6-2, a first interface 6-21, a second interface 6-22, a third interface 6-23, a fourth interface 6-24, a fifth interface 6-25, a second manual push rod 6-26, an annular clamping groove 6-26a, a steel ball positioning component 6-27,

6-3 parts of one-way speed regulating valve, 6-3a parts of air inlet and 6-3b parts of air outlet.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The orientation of the present invention is described according to the orientation shown in fig. 1, that is, the up-down and left-right directions shown in fig. 1 are the up-down and left-right directions described, and the side facing fig. 1 is the front side and the side facing away from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention or for simplifying the description, but do not indicate that a particular orientation must be present.

(example 1)

Referring to fig. 1 to 10, the clampable pruning device of the present invention comprises a brace bar assembly 1, a shearing assembly 2, a first driving device 3, a transmission assembly 4, a clamping assembly 5 and a second driving device 6.

Referring to fig. 1 to 3 and 11 to 14, the stay bar assembly 1 includes a stay bar 1-1, a lower mounting seat 1-2, an upper mounting plate 1-3, an upper mounting shaft 1-4, and a grip sleeve 1-5. The stay bar 1-1 is made of hard aluminum alloy materials, and the stay bar 1-1 is in a hollow tubular shape. The upper mounting plate 1-3 is fixedly welded on the upper end of the stay bar 1-1. The upper mounting shaft 1-4 is horizontally welded and fixed on the upper mounting plate 1-3 along the radial direction of the stay bar 1-1 and is arranged along the left-right direction. The lower mounting seat 1-2 is a circular mounting plate, a mounting through hole penetrating through the upper and lower mounting seats is arranged in the center of the lower mounting seat, the lower mounting seat 1-2 is sleeved on the support rod 1-1 through the mounting through hole, and the lower mounting seat 1-2 is coaxially welded and fixedly connected with the support rod 1-1. The holding sleeve 1-5 is made of rubber materials, and the holding sleeve 1-5 is coated on the periphery of the lower part of the support rod 1-1 and used for improving the hand feeling comfort degree and firmness when the support rod 1-1 is held.

The left side of the upper part of the brace rod 1-1 is provided with a first steel wire hole 1-11 which penetrates through the inside and the outside of the brace rod. The left side of the lower part of the support rod 1-1 is provided with a second steel wire hole 1-12 penetrating through the inside and the outside of the support rod, and the second steel wire hole 1-12 is positioned at the lower side of the lower part mounting seat 1-2. The right side of the upper part of the brace rod 1-1 is provided with a third steel wire hole 1-13 which penetrates through the inside and the outside of the brace rod. The right side of the lower part of the support rod 1-1 is provided with a fourth steel wire hole 1-14 penetrating through the inside and the outside of the support rod, and the fourth steel wire hole 1-14 is positioned at the lower side of the lower part mounting seat 1-2.

Referring to fig. 1, 2 and 4, the shearing assembly 2 comprises a front cutter bar 2-1, a rear cutter bar 2-2, a first front connecting rod 2-3, a first rear connecting rod 2-4, a first connecting seat 2-5 and a first pressure spring 2-6. The upper parts of the front cutter bar 2-1 and the rear cutter bar 2-2 are provided with corresponding cutting edges, and the middle parts of the front cutter bar 2-1 and the rear cutter bar 2-2 are hinged together through the left end of the upper mounting shaft 1-4, so that the upper parts form a closed shearing structure. The front end and the rear end of the first pressure spring 2-6 are respectively fixedly arranged on the lower part of the front cutter bar 2-1 and the lower part of the rear cutter bar 2-2 and used for enabling the front cutter bar 2-1 and the rear cutter bar 2-2 to reset to an upper opening state after completing shearing operation. The upper part of the first front connecting rod 2-3 is hinged with the lower part of the front cutter bar 2-1 through a corresponding pin shaft. The upper part of the first rear connecting rod 2-4 is hinged with the lower part of the rear cutter bar 2-2 through a corresponding pin shaft. The lower end of the first front connecting rod 2-3 and the lower end of the first rear connecting rod 2-4 are coaxially hinged on the first connecting seat 2-5.

Referring to fig. 1, 6 and 8, the first driving means 3 comprises an impact cylinder 3-1 and a first two-position five-way manual directional valve 3-2. The impact cylinder 3-1 and the first two-position five-way manual reversing valve 3-2 are both made of aluminum alloy materials. The impact cylinder 3-1 is fixedly arranged on the left part of the upper side of the lower mounting seat 1-2 along the vertical direction by a cylinder cover, and a piston rod of the impact cylinder penetrates through the lower mounting seat 1-2 downwards. The upper side of the piston of the impact cylinder 3-1 is provided with a rubber pad 3-12. The lower bearing 4-5 of the left transmission component 4a is fixedly arranged on the lower end of the piston rod of the impact cylinder 3-1 by the inner ring thereof, and the lower bearing 4-5 of the left transmission component 4a is fixedly arranged in the lower bearing support 4-4 of the left transmission component 4a by the outer ring thereof. The upper part of the middle cover 3-11 of the impact cylinder 3-1 is an energy storage cavity 3a, and the upper part of the impact cylinder 3-1 is provided with an energy storage cavity interface 3a-1 communicated with the energy storage cavity 3 a. The piston of the impact cylinder 3-1 divides the portion under the middle cap 3-11 into an upper tail chamber 3b-1 and a lower head chamber 3 b-2. The lower part of the impact cylinder 3-1 is provided with a head cavity interface 3b-21 communicated with the lower head cavity 3 b-2. The middle cover 3-11 of the impact cylinder 3-1 is provided with an air leakage port 3-111 communicated with the upper tail cavity 3 b-1. The air release opening 3-111 is provided with an exhaust silencer 3-11-1, and the exhaust silencer 3-11-1 is a general part and can be directly purchased in the market. The passage of the exhaust silencer 3-11-1 and the upper tail cavity 3b-1 is provided with an adjusting needle valve 3-11-2.

The front side of the valve body of the first two-position five-way manual reversing valve 3-2 is sequentially provided with a first interface 3-21 and a second interface 3-22 from left to right, and the rear side of the valve body of the first two-position five-way manual reversing valve 3-2 is sequentially provided with a third interface 3-23, a fourth interface 3-24 and a fifth interface 3-25 from left to right. The middle part of the valve body of the first two-position five-way manual reversing valve 3-2 is provided with a first manual push rod 3-26, the first manual push rod 3-26 is arranged in the valve body in a sliding mode, and the corresponding part of the left part of the first manual push rod 3-26 extends out of the valve body. A first compression spring 3-27 is arranged between the right end of the first manual push rod 3-26 and the corresponding part in the valve body, and the first compression spring 3-27 is used for pushing the first manual push rod 3-26 to the left so that the first connector 3-21 is communicated with the fourth connector 3-24, and the second connector 3-22 is communicated with the fifth connector 3-25. The third interfaces 2-23 are provided with exhaust silencers which are universal parts and can be directly purchased in the market. The fifth interfaces 3-25 are provided with exhaust silencers which are universal parts and can be directly purchased in the market. The fourth ports 3-24 are hermetically communicated with an air source through corresponding pipelines. The first interface 3-21 is in sealed communication with the head cavity interface 3b-21 through a corresponding pipeline. The second interface 3-22 is hermetically communicated with the energy storage cavity interface 3a-1 through a corresponding pipeline.

Referring to fig. 1, 3-1 and 5, the clamping assembly 5 comprises a front clamping arm 5-1, a rear clamping arm 5-2, a second front connecting rod 5-3, a second rear connecting rod 5-4, a second connecting seat 5-5 and a second pressure spring 5-6. The middle parts of the front clamping arm 5-1 and the rear clamping arm 5-2 are hinged together through the right end of the upper mounting shaft 1-4, so that the upper parts form a clamping structure. The front end and the rear end of the second pressure spring 5-6 are respectively and fixedly arranged on the lower part of the front clamping arm 5-1 and the lower part of the rear clamping arm 5-2 and are used for enabling the front clamping arm 5-1 and the rear clamping arm 5-2 to reset to an upper opening state after finishing clamping operation. The inner sides of the front clamping arm 5-1 and the rear clamping arm 5-2 which are clamped oppositely are provided with protective pads 5-7, and the protective pads 5-7 are made of rubber materials and used for protecting branches from being clamped. The upper part of the second front connecting rod 5-3 is hinged with the lower part of the front clamping arm 5-1 through a corresponding pin shaft. The upper part of the second rear connecting rod 5-4 is hinged with the lower part of the rear clamping arm 5-2 through a corresponding pin shaft. The lower end of the second front connecting rod 5-3 and the lower end of the second rear connecting rod 5-4 are coaxially hinged on the second connecting seat 5-5.

Referring to fig. 1 to 3, 6, 7, 10 and 15 to 20, the transmission assemblies 4 have 2 groups, the transmission assemblies 4 of the 2 groups have the same structure, and the transmission assemblies 4 of the 2 groups are divided into a left transmission assembly 4a and a right transmission assembly 4b according to the left and right positions of the transmission assemblies 4. The left-hand drive assembly 4a on the left is used for driving the shearing assembly 2, and the right-hand drive assembly 4b on the right is used for driving the clamping assembly 5. The 2 groups of transmission assemblies 4 respectively comprise an upper roller bracket 4-1, a lower roller bracket 4-2, rollers 4-3, a lower bearing support 4-4, a lower bearing 4-5 and a steel wire rope 4-6. The lower bearing 4-5 adopts a thrust angular contact ball bearing. There are 4 rollers 4-3, and the 4 rollers 4-3 are sequentially referred to as a first roller 4-31, a second roller 4-32, a third roller 4-33, and a fourth roller 4-34.

An upper roller bracket 4-1 of the left transmission component 4a is fixedly arranged on the left side of the upper part of the support rod 1-1, and the corresponding part is positioned in a first steel wire hole 1-11 of the support rod 1-1. The first roller 4-31 is rotatably arranged on the outer side of the upper roller bracket 4-1 and is positioned outside the support rod 1-1. The second roller 4-32 is rotatably disposed on the inner side of the upper roller support 4-1 in the first wire hole 1-11. The lower roller bracket 4-2 is fixedly arranged on the left side of the lower part of the support rod 1-1, and the corresponding part is positioned in the second steel wire hole 1-12 of the support rod 1-1. The third roller 4-33 is rotatably disposed on the inner side of the lower roller support 4-2 in the second wire hole 1-12. The fourth roller 4-34 is rotatably arranged on the outer side of the lower roller bracket 4-2 and is positioned outside the stay bar 1-1. One end of a steel wire rope 4-6 is fixedly connected with the lower bearing support 4-4, the other end of the steel wire rope sequentially rounds the upper side of the fourth roller 4-34 and the lower side of the third roller 4-33 and then enters the stay bar 1-1 from the second steel wire hole 1-12, rounds the upper side of the second roller 4-32 upwards and then penetrates out of the stay bar 1-1 from the first steel wire hole 1-11, and then rounds the first roller 4-31 from the lower side and is fixedly connected with the first connecting seat 2-5.

An upper roller bracket 4-1 of the right side transmission component 4b is fixedly arranged on the right side of the upper part of the support rod 1-1, and the corresponding part is positioned in a third steel wire hole 1-13 of the support rod 1-1. The first roller 4-31 is rotatably arranged on the outer side of the upper roller bracket 4-1 and is positioned outside the support rod 1-1. The second rollers 4-32 are rotatably disposed on the inner side of the upper roller support 4-1 in the third wire holes 1-13. The lower roller bracket 4-2 is fixedly arranged on the right side of the lower part of the support rod 1-1, and the corresponding part is positioned in the fourth steel wire hole 1-14 of the support rod 1-1. The third roller 4-33 is rotatably disposed on the inner side of the lower roller support 4-2 in the fourth wire hole 1-14. The fourth roller 4-34 is rotatably arranged on the outer side of the lower roller bracket 4-2 and is positioned outside the stay bar 1-1. One end of a steel wire rope 4-6 is fixedly connected with the lower bearing support 4-4, the other end of the steel wire rope sequentially rounds the upper side of the fourth roller 4-34 and the lower side of the third roller 4-33 and then enters the stay bar 1-1 from the fourth steel wire hole 1-14, rounds the upper side of the second roller 4-32 upwards and then penetrates out of the stay bar 1-1 from the third steel wire hole 1-13, and then rounds the first roller 4-31 from the lower side and is fixedly connected with the second connecting seat 5-5.

Referring to fig. 1, 7 and 9, the second driving device 6 comprises a second cylinder 6-1, a second two-position five-way manual reversing valve 6-2 and a one-way speed regulating valve 6-3. The second cylinder 6-1 and the second two-position five-way manual reversing valve 6-2 are both made of aluminum alloy materials. The one-way speed regulating valve 6-3 is fixedly arranged on the upper side of the second two-position five-way manual reversing valve 6-2. The second cylinder 6-1 adopts a double-acting cylinder. The second cylinder 6-1 is fixedly arranged on the right part of the upper side of the lower mounting seat 1-2 along the vertical direction by a cylinder body, and a piston rod of the second cylinder penetrates through the lower mounting seat 1-2 downwards. The lower bearing 4-5 of the right side transmission component 4b is fixedly arranged on the lower end of the piston rod of the second air cylinder 6-1 by the inner ring thereof, and the lower bearing 4-5 of the right side transmission component 4b is fixedly arranged in the lower bearing support 4-4 of the right side transmission component 4b by the outer ring thereof. The upper part of the second cylinder 6-1 is provided with a second cylinder upper air inlet 6-11, and the lower part of the second cylinder 6-1 is provided with a second cylinder lower air inlet 6-12. The front side of the valve body of the second two-position five-way manual reversing valve 6-2 is sequentially provided with a first connector 6-21 and a second connector 6-22 from left to right, and the rear side of the valve body of the second two-position five-way manual reversing valve 6-2 is sequentially provided with a third connector 6-23, a fourth connector 6-24 and a fifth connector 6-25 from left to right. A second manual push rod 6-26 is arranged in the middle of a valve body of the second two-position five-way manual reversing valve 6-2, the second manual push rod 6-26 is arranged in the valve body in a sliding mode, and the corresponding part of the right part of the second manual push rod 6-26 extends out of the valve body. The left end of the second two-position five-way manual reversing valve 6-2 is also provided with a steel ball positioning component 6-27. The left part of the second manual push rod 6-26 is sequentially provided with 2 annular clamping grooves 6-26a which are matched with the steel ball positioning components 6-27 and have outward openings from left to right. When the annular clamping groove 6-26a, located on the left side, of the second manual push rod 6-26 is matched with the steel ball positioning component 6-27 to form clamping and fixing positioning, the second interface 6-22 and the fourth interface 6-24 of the second two-position five-way manual reversing valve 6-2 are communicated, and the first interface 6-21 and the third interface 6-23 are communicated. When the second manual push rod 6-26 is pushed leftwards to move leftwards to enable the annular clamping groove 6-26a located on the right side of the second manual push rod to be matched with the steel ball positioning component 6-27 to form clamping and fixing positioning, the first connector 6-21 and the fourth connector 6-24 of the second two-position five-way manual reversing valve 6-2 are communicated, and the second connector 6-22 and the fifth connector 6-25 are communicated. An exhaust silencer is arranged on a third interface 6-23 of the second two-position five-way manual reversing valve 6-2, is a universal part and can be directly purchased in the market. The fifth interfaces 6-25 are provided with exhaust silencers which are universal parts and can be directly purchased in the market. The fourth ports 6-24 are in sealed communication with the air supply through corresponding pipes. The first interface 6-21 of the second two-position five-way manual reversing valve 6-2 is hermetically communicated with the air inlet 6-3a of the one-way speed regulating valve 6-3 through a corresponding pipeline. The air outlet 6-3b of the one-way speed regulating valve 6-3 is hermetically communicated with the air inlet 6-11 on the second cylinder of the second cylinder 6-1 through a corresponding pipeline. And a second port 6-22 of the second two-position five-way manual reversing valve 6-2 is hermetically communicated with a lower air inlet 6-12 of a second cylinder of the second cylinder 6-1 through a corresponding pipeline.

When the pruning device capable of clamping and fixing is used, the pruning device comprises the following components:

1. firstly, a branch to be cut is placed between the upper parts of the front cutter bar 2-1 and the rear cutter bar 2-2 of the cutting assembly 2, and the remaining part of the branch is positioned between the upper parts of the front clamping arm 5-1 and the rear clamping arm 5-2 of the clamping assembly 5.

2. And a second manual push rod 6-26 of the second two-position five-way manual reversing valve 6-2 is pushed leftwards, so that the annular clamping groove 6-26a, positioned on the right side, of the second manual push rod 6-26 is matched with the steel ball positioning component 6-27, and the steel ball positioning component 6-27 enables the second manual push rod 6-26 to be kept at the position. At the moment, a compressed air source is communicated with a first connector 6-21 of a second two-position five-way manual reversing valve 6-2, the first connector 6-21 is communicated with an air inlet 6-3a of a one-way speed regulating valve 6-3, compressed air enters an air inlet 6-11 on a second air cylinder of the second air cylinder 6-1 from an air outlet 6-3b after being regulated by the one-way speed regulating valve 6-3 and enters an upper cavity of the second air cylinder 6-1, a piston rod of the second air cylinder 6-1 is pushed to extend downwards, the lower end of a steel wire rope 4-6 of a right side transmission assembly 4b is driven to move downwards, and therefore a second connecting seat 5-5 of a clamping assembly 5 is pulled downwards, the upper parts of a front clamping arm 5-1 and a rear clamping arm 5-2 are close to each other, and branches are clamped and fixed. The compressed air in the lower cavity of the second cylinder 6-1 is exhausted into the atmosphere through a lower air inlet 6-12 of the second cylinder, a second port 6-22 of the second two-position five-way manual reversing valve 6-2, a fifth port 6-25 and an exhaust silencer on the fifth port 6-25. The clamping speed can be adjusted by a one-way speed regulating valve 6-3.

3. The first two-position five-way manual reversing valve 3-2 is in an open state at a normal position (a valve core extending position) and pushes a first manual push rod 3-26 of the first two-position five-way manual reversing valve 3-2 rightwards (overcoming the spring force of a first compression spring 3-27), compressed air generated by a compressed air source enters an energy storage cavity 3a through a fourth interface 3-24 of the first two-position five-way manual reversing valve 3-2, a second interface 3-22 and an energy storage cavity interface 3a-1 of an impact cylinder 3-1, and when the pressure of the energy storage cavity 3a is increased to overcome the resistance of the piston of the impact cylinder 3-1 to move downwards, the piston moves downwards; after the upper end face of the piston is separated from the middle cover 3-11, compressed air in the energy storage cavity 3a enters the upper tail cavity 3b-1, and because the area of the piston is much larger than that of the nozzle, when the piston starts to move under the same gas pressure, the piston suddenly receives explosive force which is many times larger than acting force during starting, the piston rod rapidly moves downwards to drive the lower end of the steel wire rope 4-6 of the left transmission assembly 4a to move downwards, so that the first connecting seat 2-5 of the shearing assembly 2 is pulled downwards, and the upper parts of the front cutter bar 2-1 and the rear cutter bar 2-2 are closed to shear branches. At this time, the air of the compressed air in the lower head chamber 3b-2 is discharged to the atmosphere through the first port 3-21, the third port 3-23, and the exhaust muffler on the third port 3-23 of the first two-position five-way manual direction valve 3-2.

After the cutting, the first manual push rod 3-26 is loosened to enable the first two-position five-way manual reversing valve 3-2 to return to the normal position, compressed air generated by a compressed air source enters the lower head cavity 3b-2 through the fourth connector 3-24, the first connector 3-21 and the head cavity connector 3b-21 of the lower head cavity 3b-2 of the impact cylinder 3-1, and a piston moves upwards to seal a nozzle opening in the middle cover 3-11. The compressed air in the upper tail cavity 3b-1 is exhausted to the atmosphere through the second port 3-22, the fifth port 3-25 and an exhaust silencer on the fifth port 3-25 of the first two-position five-way manual reversing valve 3-2. The first pressure spring 2-6 opens and resets the upper parts of the front cutter bar 2-1 and the rear cutter bar 2-2.

4. And a second manual push rod 6-26 of the second two-position five-way manual reversing valve 6-2 is pulled rightwards, so that the annular clamping groove 6-26a, located on the left side, of the second manual push rod 6-26 is matched with the steel ball positioning component 6-27, and the steel ball positioning component 6-27 enables the second manual push rod 6-26 to be kept at the position. At the moment, a compressed air source is communicated with a second interface 6-22 of a second two-position five-way manual reversing valve 6-2, compressed air enters a lower cavity of a second air cylinder 6-1 to push a piston rod of the second air cylinder 6-1 to retract upwards, the lower parts of a front clamping arm 5-1 and a rear clamping arm 5-2 of the clamping assembly 5 are opened under the action of restoring force of a second pressure spring 5-6, so that the upper parts of the front clamping arm 5-1 and the rear clamping arm 5-2 are opened, and branches are loosened to reset. Thereby completing the cutting operation of the branches. Compressed air in the upper cavity of the second cylinder 6-1 is exhausted into atmosphere through an air inlet 6-11 on the second cylinder, an air outlet 6-3b of the one-way speed regulating valve 6-3, a one-way valve inside the one-way speed regulating valve 6-3, an air inlet 6-3a of the one-way speed regulating valve 6-3, a first connector 6-21 and a third connector 6-23 of the second two-position five-way manual reversing valve 6-2 and an exhaust silencer on the third connector 6-23.

(example 2)

The rest of this example is the same as example 1, except that: the brace rod component 1 is also provided with strap hoisting rings 1-6 and straps. The sling hanging ring 1-6 is fixedly arranged on the upper side of the front part of the lower mounting seat 1-2. When in use, the suspender hanging rings 1-6 are fixedly connected with the suspender, and an operator carries the suspender on the body, thereby being beneficial to reducing the labor intensity of the operator, being convenient for the operator with less strength to hold the suspender by one body and being more convenient to use.

(example 3)

The rest of this example is the same as example 1, except that: the second drive means does not comprise the one-way speed valve 6-3. The fourth ports 6-24 are in sealed communication with the air supply through corresponding pipes. The first connector 6-21 of the second two-position five-way manual reversing valve 6-2 is communicated with the air inlet 6-11 on the second cylinder of the second cylinder 6-1 in a sealing mode through a corresponding pipeline. And a second port 6-22 of the second two-position five-way manual reversing valve 6-2 is hermetically communicated with a lower air inlet 6-12 of a second cylinder of the second cylinder 6-1 through a corresponding pipeline.

(example 4)

The rest of this example is the same as example 2, except that: the second drive means does not comprise the one-way speed valve 6-3. The fourth ports 6-24 are in sealed communication with the air supply through corresponding pipes. The first connector 6-21 of the second two-position five-way manual reversing valve 6-2 is communicated with the air inlet 6-11 on the second cylinder of the second cylinder 6-1 in a sealing mode through a corresponding pipeline. And a second port 6-22 of the second two-position five-way manual reversing valve 6-2 is hermetically communicated with a lower air inlet 6-12 of a second cylinder of the second cylinder 6-1 through a corresponding pipeline.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and the products of specific manufacturers are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a can centre gripping fixed beta pruning device which characterized in that: the device comprises a support rod assembly, a shearing assembly, a first driving device, a transmission assembly, a clamping assembly and a second driving device; the transmission assemblies comprise 2 groups, the structures of the transmission assemblies of the 2 groups are the same, and the transmission assemblies of the 2 groups are divided into a left transmission assembly and a right transmission assembly according to the left and right positions of the transmission assemblies; the stay bar component comprises a stay bar, a lower mounting seat, a strap lifting ring and a strap; the strap hanging ring is fixedly arranged on the upper side of the front part of the lower mounting seat and is fixedly connected with the strap; the lower mounting seat is welded and fixed on the lower part of the stay bar; the shearing assembly comprises a front cutter bar, a rear cutter bar and a first pressure spring; the shearing assembly is arranged on the upper part of the stay bar, and the first pressure spring is arranged between the front cutter bar and the rear cutter bar and is used for enabling the front cutter bar and the rear cutter bar to reset to an opening state after completing shearing operation; the clamping assembly comprises a front clamping arm, a rear clamping arm and a second pressure spring; the clamping assembly is arranged on the upper part of the support rod, and the second pressure spring is arranged between the front clamping arm and the rear clamping arm and is used for enabling the front clamping arm and the rear clamping arm to reset to an upper part opening state after completing clamping operation; the shearing assembly and the clamping assembly are respectively arranged on the left side and the right side of the support rod along the radial direction of the support rod; the first driving device is fixedly arranged on the left part of the lower mounting seat; a first driving device drives a front cutter bar and a rear cutter bar of the shearing assembly to carry out shearing operation through a left transmission assembly;

the second driving device comprises a second cylinder, a second two-position five-way manual reversing valve and a one-way speed regulating valve; the second cylinder is fixedly arranged on the right part of the upper side of the lower mounting seat by a cylinder body of the second cylinder along the vertical direction, and a piston rod of the second cylinder downwards penetrates through the lower mounting seat; a piston rod of the second air cylinder drives a front clamping arm and a rear clamping arm of the clamping assembly through a right side transmission assembly to perform clamping and positioning operation; the extension and retraction of a piston rod of the second cylinder, the speed during extension and the speed during retraction are controlled through a second two-position five-way manual reversing valve and a one-way speed regulating valve; a second cylinder and a second two-position five-way manual reversing valve of the second driving device are both made of aluminum alloy materials; the second cylinder adopts a double-acting cylinder; the upper part of the second cylinder is provided with a second cylinder upper air inlet, and the lower part of the second cylinder is provided with a second cylinder lower air inlet; a first connector and a second connector are sequentially arranged on the front side of a valve body of the second two-position five-way manual reversing valve from left to right, and a third connector, a fourth connector and a fifth connector are sequentially arranged on the rear side of the valve body of the second two-position five-way manual reversing valve from left to right; a second manual push rod is arranged in the middle of a valve body of the second two-position five-way manual reversing valve in a sliding mode, and the corresponding part of the right part of the second manual push rod extends out of the valve body; the left end of the second two-position five-way manual reversing valve is also provided with a steel ball positioning component; the left part of the second manual push rod is sequentially provided with 2 annular clamping grooves which are matched with the steel ball positioning component and have outward openings from left to right; when the annular clamping groove on the left side of the second manual push rod is matched with the steel ball positioning assembly to form clamping and fixing positioning, a second interface and a fourth interface of the second two-position five-way manual reversing valve are communicated, and a first interface is communicated with a third interface; when the second manual push rod is pushed leftwards to move leftwards to enable the annular clamping groove on the right side of the second manual push rod to be matched with the steel ball positioning assembly to form clamping, fixing and positioning, the first interface and the fourth interface of the second two-position five-way manual reversing valve are communicated, and the second interface and the fifth interface are communicated; an exhaust silencer is arranged on a third connector of the second two-position five-way manual reversing valve; an exhaust silencer is arranged on the fifth interface; the fourth interface is hermetically communicated with an air source through a corresponding pipeline; a first interface of the second two-position five-way manual reversing valve is hermetically communicated with an air inlet of the one-way speed regulating valve through a corresponding pipeline; the air outlet of the one-way speed regulating valve is hermetically communicated with the air inlet on the second cylinder of the second cylinder through a corresponding pipeline; and a second port of the second two-position five-way manual reversing valve is hermetically communicated with a lower air inlet of a second cylinder of the second cylinder through a corresponding pipeline.

2. A clampingly securable pruning device according to claim 1, characterized in that: the first driving device comprises an impact cylinder; the piston rod of the impact cylinder drives the front cutter bar and the rear cutter bar of the shearing assembly through the left transmission assembly to perform shearing operation.

3. A clampingly securable pruning device according to claim 2, characterized in that: the first driving device also comprises a first two-position five-way manual reversing valve; the impact cylinder and the first two-position five-way manual reversing valve are both made of aluminum alloy materials; the impact cylinder is fixedly arranged on the left part of the upper side of the lower mounting seat along the vertical direction by a cylinder cover, and a piston rod of the impact cylinder downwards penetrates through the lower mounting seat; a rubber pad is arranged on the upper side of the piston of the impact cylinder; the upper part of the middle cover of the impact cylinder is provided with an energy storage cavity, and the upper part of the impact cylinder is provided with an energy storage cavity interface communicated with the energy storage cavity; the piston of the impact cylinder divides the lower part of the middle cover into an upper tail cavity and a lower head cavity; the lower part of the impact cylinder is provided with a head cavity interface communicated with the lower head cavity; the middle cover of the impact cylinder is provided with an air leakage opening communicated with the upper tail cavity; the air release port is provided with an exhaust silencer; an adjusting needle valve is arranged on a passage between the exhaust silencer and the upper tail cavity;

a first interface and a second interface are sequentially arranged on the front side of a valve body of the first two-position five-way manual reversing valve from left to right, and a third interface, a fourth interface and a fifth interface are sequentially arranged on the rear side of the valve body of the first two-position five-way manual reversing valve from left to right; a first manual push rod is arranged in the middle of a valve body of the first two-position five-way manual reversing valve in a sliding mode, and the corresponding part of the left part of the first manual push rod extends out of the valve body; a first compression spring is arranged between the right end of the first manual push rod and the corresponding part in the valve body and used for pushing the first manual push rod to the left, so that the first connector is communicated with the fourth connector, and the second connector is communicated with the fifth connector; an exhaust silencer is arranged on the third interface; an exhaust silencer is arranged on the fifth interface; the fourth interface is hermetically communicated with an air source through a corresponding pipeline; the first interface is hermetically communicated with the head cavity interface through a corresponding pipeline; the second interface is hermetically communicated with the energy storage cavity interface through a corresponding pipeline.

4. A clampingly securable pruning device according to claim 3, characterized in that: the support rod assembly also comprises an upper mounting plate and an upper mounting shaft; the support rod is made of hard aluminum alloy material and is hollow tubular; the upper mounting plate is fixedly welded on the upper end of the stay bar; the upper mounting shaft is horizontally welded and fixedly arranged on the upper mounting plate along the radial direction of the stay bar and is arranged along the left-right direction; the lower mounting seat is a circular mounting plate, a mounting through hole penetrating through the upper part and the lower part of the lower mounting seat is arranged in the center of the lower mounting seat, the lower mounting seat is sleeved on the support rod through the mounting through hole of the lower mounting seat, and the lower mounting seat is coaxially welded and fixedly connected with the support rod;

the shearing assembly further comprises a first front connecting rod, a first rear connecting rod and a first connecting seat; the upper parts of the front cutter bar and the rear cutter bar are provided with corresponding cutting edges, and the middle parts of the front cutter bar and the rear cutter bar are hinged together through the left end of the upper mounting shaft, so that the upper parts form a closed shearing structure; the upper part of the first front connecting rod is hinged with the lower part of the front cutter bar through a corresponding pin shaft; the upper part of the first rear connecting rod is hinged with the lower part of the rear cutter bar through a corresponding pin shaft; the lower end of the first front connecting rod and the lower end of the first rear connecting rod are coaxially hinged to the first connecting seat; the first connecting seat is pulled downwards by a piston rod of the impact cylinder through the transmission assembly, so that the upper parts of the front cutter bar and the rear cutter bar are closed to cut off branches.

5. A clampingly securable pruning device according to claim 4, characterized in that: the left transmission assembly comprises an upper roller bracket, a lower roller bracket, a roller, a lower bearing support, a lower bearing and a steel wire rope; the lower bearing adopts a thrust angular contact ball bearing; the number of the rollers is 4, and the 4 rollers are sequentially called as a first roller, a second roller, a third roller and a fourth roller; the lower bearing of the left transmission assembly is fixedly arranged on the lower end of the piston rod of the impact cylinder through the inner ring of the lower bearing, and the lower bearing of the left transmission assembly is fixedly arranged in the lower bearing support of the left transmission assembly through the outer ring of the lower bearing;

the left side of the upper part of the stay bar is provided with a first steel wire hole penetrating through the stay bar; a second steel wire hole penetrating through the inner part and the outer part of the stay bar is formed in the left side of the lower part of the stay bar, and the second steel wire hole is positioned on the lower side of the lower part mounting seat;

an upper roller bracket of the left transmission assembly is fixedly arranged on the left side of the upper part of the stay bar, and the corresponding part is positioned in a first steel wire hole of the stay bar; the first roller is rotatably arranged on the outer side of the upper roller bracket and positioned outside the support rod; the second roller is rotatably arranged on the inner side of the upper roller bracket and is positioned in the first steel wire hole; the lower roller bracket is fixedly arranged on the left side of the lower part of the stay bar, and the corresponding part is positioned in a second steel wire hole of the stay bar; the third roller is rotatably arranged on the inner side of the lower roller bracket and is positioned in the second steel wire hole; the fourth roller is rotatably arranged on the outer side of the lower roller bracket and positioned outside the support rod; one end of the steel wire rope is fixedly connected with the lower bearing support, the other end of the steel wire rope sequentially winds around the upper side of the fourth roller and the lower side of the third roller and then enters the support rod from the second steel wire hole, upwards winds around the upper side of the second roller and then penetrates out of the support rod from the first steel wire hole, and then winds around the first roller from the lower side and then is fixedly connected with the first connecting seat of the shearing assembly.