CN203895854U - Telescopic trimming cutter - Google Patents

Abstract

The utility model discloses a telescopic pruning tool, which comprises an operating rod and a cutter head connected to one end of the operating rod for pruning trees and bamboos. The operating rod includes an outer rod, a middle rod and a The inner rod, between the outer rod and the middle rod, and between the middle rod and the inner rod, is provided with a positioning mechanism. The positioning mechanism includes bolt holes on the front side walls of the outer rod and the middle rod and corresponding to the bolt holes. The bolts are screwed into the bolt holes and form a radial extrusion force on the middle rod and the inner rod; the inner walls of the front ends of the outer rod and the middle rod are respectively provided with sliding sleeves, and the middle rod and the inner rod are respectively provided with sliding sleeves. The outer wall of the rear end of the rod is fixedly connected with a sliding piece; the utility model enables operators to trim trees and bamboos without climbing or using climbing tools, and effectively controls the safety risks of falling from high altitudes and electric shocks caused by trimming trees and bamboos, and is safe to use. High performance, easy to carry, easy to trim trees and bamboos of different heights, and meet the needs of a large number of tree and bamboo trimming.

Description

Telescopic pruning cutter

technical field

The utility model relates to an electric power operation auxiliary tool, in particular to a retractable pruning tool.

Background technique

Pruning super tall trees and bamboos is a necessary work for maintaining high and low voltage lines. Electric power workers must conduct regular inspections and inspections of the cable lines under their jurisdiction every month, and assist in cleaning up tree and bamboo obstacles on each line every month. It is usually used to climb to a higher position by means of stairs or directly climbing, and then use tools such as chainsaws, chainsaws or sickles to cut down tree and bamboo obstacles. This method is time-consuming and laborious, and there is a safety risk of falling from a height when climbing or using a ladder to trim. In addition, it is also possible to tie agricultural knives on the bamboo poles, and the operators can trim the trees and bamboos by standing on the ground, but the knives are easy to break away from the bamboo poles and fall during use, which is dangerous, low in work efficiency, and inconvenient to carry. Tree bamboo of different heights is trimmed, can not satisfy the demand of a large amount of tree bamboo trimming work.

Therefore, there is a need for a pruning tool that allows operators to prune trees and bamboos without climbing or using tools for climbing, effectively controlling the safety risks of falling from high altitudes and electric shock caused by pruning trees and bamboos, with high safety in use and easy to carry. It is convenient to trim trees and bamboos of different heights, and at the same time, the cutter head structure can improve work efficiency and meet the needs of a large number of trees and bamboos for trimming.

Utility model content

In view of this, the purpose of this utility model is to provide a telescopic pruning tool, so that operators can prune trees and bamboos without climbing or using climbing tools, and effectively control the safety risks of falling from high altitudes and electric shocks caused by pruning trees and bamboos. The utility model has high safety and is easy to carry, and is convenient for pruning trees and bamboos of different heights, and meets the needs of a large number of tree and bamboo pruning work.

The telescopic pruning cutter of the utility model comprises an operating rod and a cutter head connected to one end of the operating rod for pruning trees and bamboos. A positioning mechanism is provided at the overlap between the outer rod and the middle rod, and between the middle rod and the inner rod. The bolt corresponding to the bolt hole, the bolt is screwed into the bolt hole and forms a radial extrusion force on the middle rod and the inner rod; the inner wall of the front end of the outer rod and the middle rod is respectively provided with a sliding sleeve, so that The outer wall of the rear end of the middle rod and the inner rod is fixedly connected with a sliding plate; the cutter head includes a connecting cylinder detachably connected to the upper end of the inner rod and a straight knife and an arc-shaped curved blade connected to the connecting cylinder. The knife, the straight knife and the machete protrude outward from both sides of the top end of the connecting cylinder respectively in a bifurcated shape.

Further, both the straight knife and the machete are provided with blades on their periphery.

Further, the connecting cylinder, the straight knife and the machete are integrally formed, and the outer wall of the connecting cylinder is provided with blade teeth.

Further, the inner rod coaxially extends into the connecting cylinder, and a matching positioning hole is provided on the inner rod and the connecting cylinder, and the positioning member passes through the positioning hole to fix the inner rod and the connecting cylinder together; of course, As an alternative to this solution, the inner rod coaxially protrudes into the connecting cylinder and is threaded to form a detachable connection structure.

Further, the outer rod, the middle rod and the inner rod are all round rods, and at least two bolt holes uniformly distributed in the circumferential direction are provided on the front side walls of the outer rod and the middle rod respectively.

Further, the lower end of the outer rod is provided with a rubber handle.

Further, the outer rod, the middle rod and the inner rod are all made of insulating materials.

Further, a hanging ring is connected to the end of the outer rod.

Beneficial effects of the utility model: the telescopic pruning cutter of the utility model is fixedly connected with the operating rod and the cutter head, and operators can trim trees and bamboos without climbing or using climbing tools, and effectively control the falling from high altitudes caused by pruning trees and bamboos and electric shock safety risks, high safety in use; the operating rod is a retractable structure, the length of the operating rod can be adjusted according to actual needs, and at the same time it is easy to carry and place, and can trim trees and bamboos of different heights; After the operating rod is formed to a suitable length, the bolt forms a radial force on the center rod and the inner rod through the bolt hole, thereby fixing the length of the operating rod, which can be adjusted according to actual needs during operation. The structure of the cutter head can improve work efficiency and meet A large number of tree and bamboo pruning needs; the cooperation of the sliding sleeve and the sliding piece can reduce the friction and wear when the rod body slides relative to each other, ensure the rapid expansion and contraction, make the pruning work easier, and prolong the service life of the utility model; in addition, The cooperation of the sliding sleeve and the sliding sheet also forms a limiting effect on each rod body to avoid prolapse due to excessive elongation.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model.

Detailed ways

Fig. 1 is a schematic structural view of the present utility model, as shown in the figure: the telescopic pruning tool of this embodiment includes an operating rod and a cutter head connected to one end of the operating rod for pruning trees and bamboos, and the operating rod includes a telescopic The outer rod 1, the middle rod 2 and the inner rod 3 which are sequentially limited and socketed are provided with a positioning mechanism at the overlap between the outer rod 1 and the middle rod 2, and between the middle rod 2 and the inner rod 3. The positioning mechanism comprises a bolt hole 41 and a bolt 42 corresponding to the bolt hole 41 which are arranged on the front end side walls of the outer rod 1 and the middle rod 2, and the bolt 42 is screwed into the bolt hole 41 and the The middle rod 2 and the inner rod 3 form a radial extrusion force; the inner walls of the front ends of the outer rod 1 and the middle rod 2 are respectively provided with sliding sleeves 51, and the outer walls of the rear ends of the middle rod 2 and the inner rod 3 are fixedly connected with Sliding plate 52; the cutter head includes a connecting cylinder 61 detachably connected to the upper end of the inner rod 3 and a straight knife 62 and an arc machete 63 connected to the connecting cylinder 61, the straight knife 62 and Scimitar 63 protrudes outwards from both sides of the top of said connecting cylinder 61 in a bifurcated shape; the body of the knife has a sharp blade, which can trim trees and bamboos, and as for its specific shape, it is not limited here; The head is fixedly connected, and operators can trim trees and bamboos without climbing or using climbing tools, which effectively controls the safety risks of falling from high altitudes and electric shocks caused by pruning trees and bamboos, and has high safety in use; 1. The middle rod 2 and the inner rod 3 form a telescopic structure, which can adjust the operating length of the operating rod according to actual needs, and is easy to carry and place, and can trim trees and bamboos of different heights; After forming a suitable length, the bolt 42 forms a radial force on the middle rod 2 and the inner rod 3 through the bolt hole 41, thereby fixing the length of the operating rod, which can be adjusted according to actual needs during operation to meet the needs of a large number of tree and bamboo pruning work The sliding sleeve 51 is arranged on the upper end of the outer rod 1 and the middle rod 2 (i.e., the end near the cutter head), and the slide plate 52 is arranged on the lower end of the middle rod 2 and the inner rod 3 (i.e., the end far away from the cutter head), so as to reduce the The friction and wear during relative sliding ensure fast expansion and contraction, making the pruning work more relaxed and free, and prolonging the service life of the tool at the same time; Excessive extension and prolapse; In this embodiment, the detachable connection between the cutter head and the operating rod is convenient for replacement and assembly, and enhances versatility; the straight knife 62 is linear and can be used for straight cutting and chopping; the machete 63 It is arc-shaped and can be used for hooking and chopping; the straight knife 62 and the machete 63 cooperate to make the trimming work more convenient and improve work efficiency; the knife body is "r" shaped, and the straight knife 62 and the machete 63 are respectively connected to The left and right sides of the top of the tube 61 make the structure stable.

In this embodiment, the periphery of the straight knife 62 and the curved knife 63 is provided with a blade; the entire side of the straight knife 62 and the curved knife 63 is provided with a sharp blade, so that the top of the knife head also has a chopping function, which can Top cut.

In this embodiment, the connecting cylinder 61, the straight knife 62 and the machete 63 are integrally formed, and the outer wall of the connecting cylinder 61 is provided with blade teeth 61a; integrally forming is beneficial to enhance the structural strength of the cutter head, and is convenient for processing and manufacturing , reduce production cost; blade tooth 61a can be arranged on one side of straight knife 62 or machete 63, also can be located on both sides simultaneously; , to improve the application effect.

In this embodiment, the inner rod 3 coaxially extends into the connecting cylinder 61, and the inner rod 3 and the connecting cylinder 61 are provided with matching positioning holes (not shown in the figure), and the positioning member passes through the connecting cylinder 61. The positioning hole fixes the inner rod 3 and the connecting cylinder 61 together; the positioning member can use a latch to facilitate assembly and disassembly; of course, another connection method can also be used in this embodiment, and the inner rod 3 coaxially extends into the connecting cylinder 61 Moreover, a detachable connection structure is formed by screw connection, the connection speed is fast, and the cutter head can rotate along the operating rod, and can be properly adjusted as required.

In this embodiment, the outer rod 1, the middle rod 2 and the inner rod 3 are all round rods, and the front end side walls of the outer rod 1 and the middle rod 2 are provided with two bolts evenly distributed in the circumferential direction. Holes 41; the axes of the two bolt holes 41 coincide, and at the same time, the center rod 2 or the inner rod 3 are pressed against each other to enhance the degree of fixation.

In this embodiment, the lower end of the outer rod 1 is provided with a rubber handle 7; the rubber handle 7 ensures insulation performance, can better ensure the safety of the staff, and enhances the comfort of operation to prevent slippage during operation.

In this embodiment, the outer rod 1 , the middle rod 2 and the inner rod 3 are all made of insulating material; the insulating material may be hard plastic, which reduces production cost and increases operational safety.

In this embodiment, the end of the outer rod 1 is connected with a hanging ring 8; the hanging ring 8 can be an iron ring, which is used to hang the tool, and is convenient for hanging when not in use.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (9)

1. A telescopic pruning cutter, comprising an operating rod and a cutter head connected to one end of the operating rod for pruning trees and bamboos, characterized in that: the operating rod includes an outer rod and a middle rod that are telescopically limited and socketed successively and the inner rod, a positioning mechanism is provided at the overlap between the outer rod and the middle rod, and between the middle rod and the inner rod, and the positioning mechanism includes a Bolt holes and bolts corresponding to the bolt holes, the bolts are screwed into the bolt holes and form a radial extrusion force on the middle rod and the inner rod; the inner walls of the front ends of the outer rod and the middle rod are respectively provided with Sliding sleeve, the outer wall of the rear end of the middle rod and the inner rod is fixedly connected with a sliding piece; the cutter head includes a connecting cylinder detachably connected to the upper end of the inner rod and a straight knife connected to the connecting cylinder and an arc-shaped scimitar, the straight knife and the scimitar respectively protrude outward from both sides of the top of the connecting cylinder in a bifurcated shape. 2. The retractable pruning tool according to claim 1, wherein both the straight knife and the machete are provided with cutting edges. 3. The retractable pruning tool according to claim 2, characterized in that: the connecting cylinder, the straight knife and the machete are integrally formed, and the outer wall of the connecting cylinder is provided with cutting teeth. 4. The retractable pruning tool according to claim 3, characterized in that: the inner rod coaxially extends into the connecting cylinder, and the inner rod and the connecting cylinder are provided with matching positioning holes, and the positioning member passes through The positioning hole fixes the inner rod and the connecting cylinder together. 5 . The retractable pruning tool according to claim 4 , wherein the inner rod coaxially extends into the connecting cylinder and forms a detachable connection structure in a screw connection manner. 5 . 6. The telescopic pruning cutter according to any one of claims 1 to 5, characterized in that: the outer rod, the middle rod and the inner rod are all round rods, and the front side walls of the outer rod and the middle rod There are at least two bolt holes uniformly distributed in the circumferential direction. 7. The retractable pruning tool according to claim 1, wherein a rubber handle is provided at the lower end of the outer rod. 8. The retractable pruning cutter according to claim 1, wherein the outer rod, the middle rod and the inner rod are all made of insulating materials. 9. The retractable pruning cutter according to claim 1, wherein a hanging ring is connected to the end of the outer rod.