CN113196975A

CN113196975A - Garden trimming device

Info

Publication number: CN113196975A
Application number: CN202110670328.4A
Authority: CN
Inventors: 王继臣; 盛利; 陈立; 孙茂坤; 王明晶
Original assignee: Qingdao Boya Ecological Environment Engineering Co ltd
Current assignee: Qingdao Boya Ecological Environment Engineering Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-03
Anticipated expiration: 2041-06-17
Also published as: CN113196975B

Abstract

The utility model provides a gardens trimming means, relates to garden machine technical field, including hand-held type pneumatic cylinder, T shape head, arc connecting plate, connecting seat, interface, internal thread, external screw thread, guiding hole, piston rod, holding tank, tool bit mechanism, branch positioning mechanism, depression bar, press the handle, grip handle, first screw thread section, second screw thread section. When the tree branch cutting machine is used, for high-altitude tree branches, when the tree branches are well positioned until the tree branches are cut, a user can complete the cutting work only by pressing without holding the handle with great effort by relying on the action of the hanging part, and the labor intensity can be greatly reduced; in addition, the high-altitude branches can be easily guided into a working area through the guide inclined plane, can be accurately positioned through the branch positioning mechanism, can be further positioned and can simultaneously crush cutting parts, and can be cut under the condition of saving labor through the hydraulic cylinder; therefore, the tree pruning machine can improve the tree branch pruning efficiency, ensure the safety of operators and reduce the labor intensity during pruning operation.

Description

Garden trimming device

Technical Field

The invention relates to the technical field of garden machinery, in particular to a garden trimming device.

Background

The urban landscaping engineering mainly takes environmental protection as a main part and has the functions of purifying air, water and soil, reducing noise, protecting ecology and optimizing environmental quality. The pruning of the urban garden tree crowns is an important work of the maintenance of the garden greening engineering, and is used for adjusting nutrients, expanding the crowns and playing a greening function; the tree form is arranged, the branches are straightened out, the crowns are luxuriant and luxuriant, the density is proper, and the ornamental effect is fully exerted; through ventilation and light transmission, the plant diseases and insect pests are reduced. In the prior art, commonly used garden scissors prune the branch, however to thicker branch, use garden scissors can't cut the branch.

The prior patent documents disclose some trimming devices suitable for thicker branches, however, most of these devices are complex in structure and inconvenient to use, and the technical bottleneck is mainly reflected in:

1. the branches are difficult to position, so that the cutter has cutting capacity but is difficult to work;

2. the equipment is huge, is usually provided with a lifting table, a plurality of motors and an electric saw, and is inconvenient to move and operate;

3. the trimming means is single, is limited to the cutting of a cutter, and has high labor intensity and laborious operation for a device without electric devices.

Disclosure of Invention

The invention provides a garden pruning device, and aims to provide a practical tool which is convenient to use and simple to operate, can accurately position branches and can quickly prune thick branches.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a garden pruning device comprises a handheld hydraulic cylinder, a T-shaped head, an arc-shaped connecting plate and a connecting seat, wherein the T-shaped head is of an inverted T-shaped plate structure, the T-shaped head is fixedly connected with the top end of the connecting seat through the arc-shaped connecting plate which is arched upwards, a connector is arranged at the right end of the connecting seat, an internal thread is arranged on the internal surface of the connector, an external thread is arranged at the end part of a cylinder barrel of the handheld hydraulic cylinder and is in screwed connection with the connector, a guide hole is also connected in the connecting seat at the inner side of the connector, a piston rod of the handheld hydraulic cylinder penetrates through the guide hole and is in sliding connection with the guide hole, an accommodating groove which is opened at the left end surface of the connecting seat is also connected in the connecting seat at the left side of the guide hole, a cutter head mechanism is arranged in the accommodating groove, the cutter head mechanism is detachably and fixedly connected with the end part of the piston rod, and is driven by the piston rod to enter and exit the accommodating groove and move along the left and right directions, the inner surface of the T-shaped head opposite to the cutter head mechanism is provided with a branch positioning mechanism, and the cutter head mechanism is matched with the branch positioning mechanism for use; the cylinder wall of the handheld hydraulic cylinder is hinged with a pressure rod, the right end of the pressure rod is provided with a pressing handle, the right end of the cylinder barrel is fixedly connected with a holding handle, and the right ends of the pressing handle and the holding handle are respectively provided with a first thread section and a second thread section which are used for connecting a long handle or a short handle.

Preferably, the short handle comprises a pressing short handle connected with the first thread section and a holding short handle connected with the second thread section; the long handle comprises a pressing long handle connected with the first thread section and a holding long handle connected with the second thread section; the outer surface of the holding long handle is fixedly provided with a fixed sleeve, the outer surface of the pressing long handle is connected with a sliding sleeve in a sliding manner, and a return spring is connected between the outer surface of the sliding sleeve and the outer surface of the fixed sleeve; the pressing short handle and the pressing long handle are in threaded connection with the first threaded section, and the holding short handle and the holding long handle are in threaded connection with the second threaded section.

Preferably, the branch positioning mechanism comprises an arc-shaped positioning groove which is arranged at the bottom of the inner surface of the T-shaped head and penetrates through the front end surface and the rear end surface, and a plurality of anti-skid protrusions are arranged on the inner surface of the arc-shaped positioning groove; the cutter head mechanism comprises a cutter arranged along the longitudinal direction, and a cutter groove is further arranged along the longitudinal direction on the inner surface of the T-shaped head opposite to the cutting edge of the cutter.

Preferably, the middle part of the intersection point of the cutter groove and the arc-shaped positioning groove is further provided with a through hole penetrating through the left end surface and the right end surface of the T-shaped head, the middle part of the left end of the cutter opposite to the through hole is further fixedly provided with a spine part, the spine part is coaxial with the through hole, and the size of the spine part satisfies the following requirements: when the needle passes in and out of the through hole, the outer surface of the spike part is separated from the inner surface of the through hole.

Preferably, both ends of the lower part of the T-shaped head extend outwards to form a hanging part for hanging on the residual tree branches.

Preferably, the bottom of connecting seat still be connected with the cutting knife, the cutting edge of cutting knife towards cylinder one side, and the left end of cutting knife is the arcwall face, the arcwall face constitute and be used for leading-in the direction inclined plane between T shape head and the connecting seat with the branch.

Preferably, the size of the accommodating groove satisfies the following conditions: in the initial state, the cutter head mechanism is hidden in the accommodating groove.

Preferably, the right end of the cutter is fixedly connected with an inserted bar, the left end face of the piston rod is provided with a jack, and the inserted bar is in interference fit in the jack and is fixed through a pin penetrating through the piston rod and the inserted bar.

Preferably, the T-shaped head, the arc-shaped connecting plate, the connecting seat, the cutter head mechanism and the branch positioning mechanism are respectively provided with a plurality of models according to the thickness of the branches.

The garden pruning device has the beneficial effects that: 1. for the branches in the high altitude, when the branches are well positioned until the cutting is finished, the user can complete the cutting work only by pressing without holding the handle with great effort by relying on the action of the hanging part, so that the labor intensity can be greatly reduced; 2. the high-altitude branches can be easily guided into the working area through the guide inclined plane and can be accurately positioned through the branch positioning mechanism; 3. the cutting part can be further positioned and simultaneously crushed through the spine part, and the cutting can be completed through the hydraulic cylinder under the condition of saving labor; according to the invention, the pruning efficiency of the branches can be improved, the safety of operators is guaranteed, and the labor intensity of pruning operation is reduced.

Drawings

FIG. 1 is an exploded view of the present invention (including the possibility of short or long handles);

FIG. 2 is a schematic view of the present invention with a long handle;

FIG. 3 is a schematic view of the present invention in partial cross section;

FIG. 4 is a schematic cross-sectional view of the present invention B-B1;

FIG. 5, the right side view of FIG. 2 of the present invention;

1. a hand-held hydraulic cylinder; 2. a pressure lever; 3. a T-shaped head; 4. an arc-shaped connecting plate; 5. a connecting seat; 6. a cutter; 7. a spike portion; 8. a pressing handle; 9. a first thread segment; 10. a grip; 11. a second thread segment; 12. cutting; 13. a guide slope; 14. an arc-shaped positioning groove; 15. pressing the short handle; 16. holding the short handle; 17. pressing the long handle; 18. holding the long handle; 19. a sliding sleeve; 20. fixing a sleeve; 21. a return spring; 22. a cutter groove; 23. a through hole; 24. inserting a rod; 25. a piston rod; 26. a pin; 27. accommodating grooves; 28. a guide hole; 29. an interface; 30. and (4) anti-skid bulges.

Detailed Description

In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.

The invention relates to a garden pruning device, which comprises a handheld hydraulic cylinder 1, a T-shaped head 3, an arc-shaped connecting plate 4 and a connecting seat 5, wherein the T-shaped head 3 is in an inverted T-shaped plate structure, the T-shaped head 3 is fixedly connected with the top end of the connecting seat 5 through the arc-shaped connecting plate 4 which is arched upwards, the right end of the connecting seat 5 is provided with a connector 29, the inner surface of the connector 29 is provided with internal threads, the end part of a cylinder barrel of the handheld hydraulic cylinder 1 is provided with external threads and is screwed in the connector, a guide hole 28 is also connected in the connecting seat at the inner side of the connector, and a piston rod 25 of the handheld hydraulic cylinder 1 penetrates through the guide hole and is in sliding connection with the guide hole so as to ensure that the piston rod moves back and forth along the fixed direction; an accommodating groove 27 with an opening on the left end surface of the connecting seat is further connected in the connecting seat on the left side of the guide hole, a cutter head mechanism is arranged in the accommodating groove 27, the cutter head mechanism is detachably and fixedly connected with the end part of the piston rod and can enter and exit the accommodating groove under the driving of the piston rod and move along the left and right directions, a branch positioning mechanism is arranged on the inner surface of the T-shaped head 3 opposite to the cutter head mechanism, and the cutter head mechanism and the branch positioning mechanism are matched for use; a pressure lever 2 is hinged on the cylinder wall of the handheld hydraulic cylinder 1, a pressing handle 8 is arranged at the right end of the pressure lever 2, a holding handle 10 is fixedly connected at the right end of the cylinder, and a first thread section 9 and a second thread section 11 which are used for connecting a long handle or a short handle are respectively arranged at the right ends of the pressing handle 8 and the holding handle 10;

as shown in fig. 1, the short handle comprises a pressing short handle 15 connected with the first thread section 9 and a holding short handle 16 connected with the second thread section 11; the long handle comprises a pressing long handle 17 connected with the first threaded section 9 and a holding long handle 18 connected with the second threaded section 11; a fixed sleeve 20 is fixedly arranged on the outer surface of the long holding handle 18, a sliding sleeve 19 is connected on the outer surface of the long pressing handle 17 in a sliding manner, and a return spring 21 is connected between the outer surface of the sliding sleeve 19 and the outer surface of the fixed sleeve; the pressing short handle 15 and the pressing long handle 17 are in threaded connection with the first threaded section 9, and the holding short handle 16 and the holding long handle 18 are in threaded connection with the second threaded section 11; the short handle is used for pruning shorter branches, and the long handle is used for pruning higher branches;

as shown in fig. 3 and 4, the branch positioning mechanism includes an arc positioning groove 14 which is arranged at the bottom of the inner surface of the T-shaped head 3 and penetrates through the front and rear end surfaces, and a plurality of anti-skid protrusions 30 are arranged on the inner surface of the arc positioning groove 14; the cutter head mechanism comprises a cutter 6 arranged along the longitudinal direction, and a cutter groove 22 is also arranged along the longitudinal direction on the inner surface of the T-shaped head 3 opposite to the cutting edge of the cutter 6; the arc-shaped positioning groove 14 is used for positioning branches, and after the branches are positioned, the branches are cut off by the cutting edge;

as shown in fig. 3, 4 and 5, a through hole 23 penetrating through the left and right end faces of the T-shaped head 3 is further provided in the middle of the intersection point of the knife groove 22 and the arc-shaped positioning groove 14, a spike portion 7 is further fixedly provided in the middle of the left end of the cutter 6 opposite to the through hole 23, the spike portion 7 is coaxial with the through hole 3, and the size of the spike portion 7 satisfies: when the needle passes in and out of the through hole 3, the outer surface of the spike part 7 is separated from the inner surface of the through hole 3; the spine part 7 is inserted into the tree branch firstly, the tree branch is cut off along with the movement of the cutter 6 to the left side and the cutting into the cutter groove 22, in the process, the spine part 7 plays a role in positioning and breaking, and the cutting position is split through the spine part, so that the cutting is more smooth, the cutter edge can be protected, and the service life of the cutter is prolonged;

as shown in fig. 4 and 5, both ends of the lower part of the T-shaped head 3 extend outwards to form hanging parts for hanging on the residual branches; generally, after a branch is cut off, the device loses the support of the branch, the branch is easy to fall suddenly or a user is stressed suddenly to increase, certain safety risk exists, and even if the branch is cut off, the hanging part on one side is still hung on the residual branch, so that an operator can be fully prepared to move the device;

as shown in fig. 1 and 2, the bottom end of the connecting base 5 is further connected with a cutting knife 12, the cutting edge of the cutting knife 12 faces one side of the cylinder barrel, the left end of the cutting knife 12 is an arc-shaped surface, and the arc-shaped surface forms a guide inclined surface 13 for guiding branches into the space between the T-shaped head 3 and the connecting base 5; the cutting knife 12 has the functions of: on one hand, small branches are directly cut off by a cutting knife 12, on the other hand, for thicker branches, the branches are firstly propped against the branches through the guide inclined plane 13, then the branches move along the guide inclined plane 13 and smoothly enter between the T-shaped head 3 and the connecting seat 5, and as is well known, when the higher branches are trimmed, the branches are difficult to be brought into a cutting range due to the limitation of human vision, which is an important reason causing the low branch cutting efficiency;

as shown in fig. 3, the size of the receiving groove 27 satisfies: in the initial state, the cutter head mechanism is hidden in the accommodating groove 27; the design is to avoid influencing the work of the guide inclined plane;

the right end of the cutter 6 is also fixedly connected with an inserted bar 24, the left end face of the piston rod is provided with an insertion hole, and the inserted bar 24 is in interference fit in the insertion hole and is fixed through a pin 26 penetrating through the piston rod and the inserted bar; of course, there are various detachable fixed connection modes, such as a screwed connection mode;

the T-shaped head, the arc-shaped connecting plate 4, the connecting seat 5, the cutter head mechanism and the branch positioning mechanism are respectively provided with a plurality of models according to the thickness of branches; that is, the above components may be replaced as necessary.

The use principle of the invention is as follows:

when the portable tree branch cutting device is used, a long handle or a short handle is selected according to needs, after the portable tree branch cutting device is installed, the portable tree branch cutting device is lifted, the portable tree branch cutting device abuts against a tree branch through the guide inclined plane 13, then the tree branch moves along the guide inclined plane and enters a position between the T-shaped head 3 and the connecting seat 5, the part, to be cut, of the tree branch is accommodated in the arc-shaped positioning groove 14 along the trend of the tree branch, the tree branch is half wrapped and positioned by the arc-shaped positioning groove 14 at the moment, the portable tree branch cutting device is pulled, the outer wall of the tree branch abuts against the groove bottom of the arc-shaped positioning groove 14, the handle is pressed, the handheld hydraulic cylinder 1 starts to work, the tree branch is firstly pierced by the sharp piercing part and is continuously inserted into the through hole, and then the tree branch is cut off by the cutting edge; when the cutting machine is cut off, one part of branches falls down, the other part of branches still remains, and the remaining branches support the hanging part on one side, so that the cutting machine cannot suddenly lose support, and an operator can move the cutting machine to a new cutting position leisurely.

It should be noted that, for branches in high altitude, when the branches are positioned well until the cutting is finished, the user can complete the cutting work only by pressing without holding the handle with great effort by relying on the function of the hanging part, so that the labor intensity can be greatly reduced; in addition, the high-altitude branches can be easily guided into a working area through the guide inclined plane, can be accurately positioned through the branch positioning mechanism, can be further positioned and can simultaneously crush cutting parts, and can be cut under the condition of saving labor through the hydraulic cylinder; according to the invention, the pruning efficiency of the branches can be improved, the safety of operators is guaranteed, and the labor intensity during pruning operation is reduced.

Claims

1. A garden pruning device characterized in that: the T-shaped head is of an inverted T-shaped plate structure, the T-shaped head is fixedly connected with the top end of the connecting seat through the arc-shaped connecting plate which is arched upwards, a port is arranged at the right end of the connecting seat, an internal thread is arranged on the inner surface of the port, an external thread is arranged at the end part of a cylinder barrel of the handheld hydraulic cylinder and is in threaded connection with the port, a guide hole is further connected in the connecting seat on the inner side of the port, a piston rod of the handheld hydraulic cylinder penetrates through the guide hole and is in sliding connection with the guide hole, an accommodating groove which is opened at the left end face of the connecting seat is further connected in the connecting seat on the left side of the guide hole, a cutter head mechanism is arranged in the accommodating groove, the cutter head mechanism is detachably and fixedly connected with the end part of the piston rod and is driven by the piston rod to enter and exit the accommodating groove and move along the left and right directions, and a branch positioning mechanism is arranged on the inner surface of the T-shaped head opposite to the cutter head mechanism, the cutter head mechanism is matched with the branch positioning mechanism for use; the cylinder wall of the handheld hydraulic cylinder is hinged with a pressure rod, the right end of the pressure rod is provided with a pressing handle, the right end of the cylinder barrel is fixedly connected with a holding handle, and the right ends of the pressing handle and the holding handle are respectively provided with a first thread section and a second thread section which are used for connecting a long handle or a short handle.

2. A garden pruning device according to claim 1, characterized in that: the short handle comprises a pressing short handle connected with the first thread section and a holding short handle connected with the second thread section; the long handle comprises a pressing long handle connected with the first thread section and a holding long handle connected with the second thread section; the outer surface of the holding long handle is fixedly provided with a fixed sleeve, the outer surface of the pressing long handle is connected with a sliding sleeve in a sliding manner, and a return spring is connected between the outer surface of the sliding sleeve and the outer surface of the fixed sleeve; the pressing short handle and the pressing long handle are in threaded connection with the first threaded section, and the holding short handle and the holding long handle are in threaded connection with the second threaded section.

3. A garden pruning device according to claim 2, characterized in that: the branch positioning mechanism comprises an arc-shaped positioning groove which is arranged at the bottom of the inner surface of the T-shaped head and penetrates through the front end surface and the rear end surface, and a plurality of anti-skid bulges are arranged on the inner surface of the arc-shaped positioning groove; the cutter head mechanism comprises a cutter arranged along the longitudinal direction, and a cutter groove is further arranged along the longitudinal direction on the inner surface of the T-shaped head opposite to the cutting edge of the cutter.

4. A garden pruning device according to claim 3, characterized in that: the crossing point middle part of sword groove and arc constant head tank still be equipped with the perforating hole that link up terminal surface about the T shape head, the middle part of the cutter left end relative with the perforating hole still fixedly is equipped with spine portion, spine portion coaxial with the perforating hole, and the size of spine portion satisfies in: when the needle passes in and out of the through hole, the outer surface of the spike part is separated from the inner surface of the through hole.

5. A garden pruning device according to claim 4, characterized in that: two ends of the lower part of the T-shaped head extend outwards to form a hanging part for hanging the residual tree branches.

6. A garden pruning device according to claim 5, characterized in that: the bottom of connecting seat still be connected with the cutting knife, the cutting edge of cutting knife towards cylinder one side, and the left end of cutting knife be the arcwall face, the arcwall face constitute and be used for leading-in the direction inclined plane between T shape head and the connecting seat with the branch.

7. A garden pruning device according to claim 6, characterized in that: the size of holding tank satisfy: in the initial state, the cutter head mechanism is hidden in the accommodating groove.

8. A garden pruning device according to claim 7, characterized in that: the right end of the cutter is fixedly connected with an inserted bar, the left end face of the piston rod is provided with an insertion hole, and the inserted bar is in interference fit in the insertion hole and is fixed through a pin penetrating through the piston rod and the inserted bar.

9. A garden pruning device according to claim 8, wherein: the T-shaped head, the arc-shaped connecting plate, the connecting seat, the cutter head mechanism and the branch positioning mechanism are respectively provided with a plurality of models according to the thickness of the branches.