A branch and leaf trimmer

Abstract

The present invention belongs to the technical field of pruning equipment, and particularly relates to a branch and leaf trimmer, which comprises a strip-shaped rod. A pruning mechanism is installed at the upper end of the strip-shaped rod, and an operating mechanism is arranged at the lower end of the strip-shaped rod. An installation seat is arranged at the upper end of the strip-shaped rod, and an installation plate is arranged on the installation seat. The pruning mechanism comprises a U-shaped knife groove, a blade, a transmission assembly and an elastic connection assembly. A hinge seat is arranged on the blade. The transmission assembly comprises a strip-shaped plate, a sliding ring, a first transmission rod and a pull wire. The first transmission rod is hinged to the strip-shaped plate and the sliding ring. In the present invention, the pruning mechanism is arranged at the upper end of the strip-shaped rod, and at the same time, the operating mechanism is arranged at the lower end of the strip-shaped rod. The pull wire is pulled by the operating mechanism, so that when in use, only the operation is carried out on the lower side of the strip-shaped rod, and the pruning mechanism at the upper end of the strip-shaped rod can complete the pruning of branches and leaves, greatly facilitating the pruning operation of high branches and leaves.

Description

Technical Field

[0001] The present invention belongs to the technical field of pruning devices, and particularly relates to a branch and leaf trimmer. Background Art

[0002] Trees are common greening plants or agricultural crops. During the growth process of trees, the branches and leaves of the trees will continue to grow. The disorderly growth of the branches and leaves of greening plants will affect the appearance, while the disorderly growth of the branches and leaves of agricultural crops will affect the growth of other branches and leaves. Therefore, the branches and leaves of trees need to be trimmed regularly.

[0003] Currently, the pruning tools are usually scissors. Operators use scissors to trim the branches and leaves of trees. However, when trimming the branches and leaves at high places, it is inconvenient for operators to operate and they need to use ladders or other lifting devices to carry out the trimming. In order to facilitate the trimming of the branches and leaves at high places, we propose a branch and leaf trimmer. Summary of the Invention

[0004] The purpose of the present invention is to provide a branch and leaf trimmer to solve the problems existing in the background art.

[0005] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0006] A branch and leaf trimmer includes a strip-shaped rod. A trimming mechanism is installed at the upper end of the strip-shaped rod, an operating mechanism is arranged at the lower end of the strip-shaped rod, a mounting seat is arranged at the upper end of the strip-shaped rod, and a mounting plate is arranged on one side of the mounting seat;

[0007] The trimming mechanism includes a U-shaped knife groove, a blade, a transmission assembly, and an elastic connection assembly. The U-shaped knife groove is integrally formed and fixed with the upper end of the mounting plate. The blade is provided with a hinge seat hinged to the upper end of the mounting plate;

[0008] The transmission assembly includes a strip-shaped plate, a sliding ring, a first transmission rod, and a pull wire. The strip-shaped plate is integrally formed and fixed with the hinge seat. The sliding ring is slidably connected to the upper side of the strip-shaped rod. Both ends of the first transmission rod are respectively hinged to the strip-shaped plate and the sliding ring. The sliding ring is connected to the upper end of the strip-shaped rod through the elastic connection assembly;

[0009] The upper end of the pull wire is connected to the sliding ring, and the lower end of the pull wire is connected to the operating mechanism. The pull wire can be pulled up and down through the operating mechanism.

[0010] The elastic connection assembly includes a plurality of first springs. Both ends of the first spring are respectively connected and fixed to the sliding ring and the upper end of the strip-shaped rod.

[0011] A plurality of positioning rods are further provided on the upper side of the strip-shaped rod. Each of the positioning rods is sleeved inside each of the first springs, and each of the positioning rods slidably penetrates through the sliding ring.

[0012] A positioning strip plate extending vertically is provided on the side surface of the strip-shaped rod. The positioning strip plate is provided with a wire passing hole penetrating through the upper and lower sides, and the pulling wire slides downward through the wire passing hole.

[0013] The operating mechanism includes an operating rod, a second transmission rod, and a strip-shaped guide rail. The upper end of the operating rod is hinged to the lower side of the strip-shaped rod. The guide rail is fixedly arranged at the lower end of the strip-shaped rod and extends vertically. The upper end of the second transmission rod is hinged to the operating rod, and a limiting rod matching the strip-shaped guide rail is processed at the lower end of the second transmission rod. The lower end of the second transmission rod is slidably connected to the strip-shaped guide rail through the limiting rod, and the lower end of the pulling wire is connected to the lower end of the second transmission rod.

[0014] The operating rod is provided with a strip-shaped cavity, and the upper end of the second transmission rod is hinged to the upper side of the strip-shaped cavity.

[0015] The blade includes a housing and a cutting blade. The housing is integrally formed and fixed with the hinge seat. A connecting rod is processed at one end of the cutting blade far from the hinge seat, and the connecting rod is rotatably connected to the housing. A sleeve is processed at one end of the cutting blade close to the hinge seat. A through hole is jointly opened in the housing and the hinge seat. The sleeve penetrates downward through the through hole and is rotatably connected to the through hole. A blade turning mechanism is arranged between the mounting seat and the sleeve.

[0016] The blade turning mechanism includes an L-shaped connecting rod and a guide rail. One end of the L-shaped connecting rod is slidably sleeved on the sleeve and is connected by a second spring, and the other end of the L-shaped connecting rod extends toward the side away from the mounting plate. An arc-shaped guide groove is opened on one side of the inner wall surface of the sleeve facing the mounting seat. The arc-shaped guide groove extends along the length direction of the sleeve and has a turning degree of 180°. The L-shaped connecting rod is provided with a guide head matching the arc-shaped guide groove. The guide rail is fixedly arranged between the guide rail and the mounting seat, and the guide rail is integrally communicated by a circular arc rail and a tangential rail. The circular arc rail corresponds to the lower side of the hinge seat, and the tangential rail is the tangent direction of the circular arc rail and extends toward the L-shaped connecting rod. The L-shaped connecting rod extends into the guide rail.

[0017] In the present invention, the pruning mechanism is arranged at the upper end of the strip-shaped rod, and at the same time, the operating mechanism is arranged at the lower end of the strip-shaped rod. The operating mechanism is used to pull the pulling wire, so that when in use, only the operation needs to be performed on the lower side of the strip-shaped rod, and the pruning mechanism at the upper end of the strip-shaped rod can complete the pruning of branches and leaves, greatly facilitating the pruning operation of high branches and leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further illustrated by the non-limiting embodiments shown in the accompanying drawings.

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is Figure 1 an enlarged schematic structural diagram of the trimming mechanism at position A of

[0021] Figure 3 is Figure 1 an enlarged schematic structural diagram of the operating mechanism at position B of

[0022] Figure 4 is a schematic structural diagram of the trimming mechanism and the blade flipping mechanism of the present invention;

[0023] Figure 5 is a partial sectional schematic structural diagram of the blade flipping mechanism of the present invention;

[0024] Figure 6 is Figure 5 an enlarged sectional schematic structural diagram at position C of

[0025] The main component symbols are explained as follows:

[0026] bar-shaped rod 100, mounting seat 101, mounting plate 102, U-shaped knife groove 110, blade 120, hinge seat 121, bar-shaped plate 130, sliding ring 131, first transmission rod 132, pull wire 133, first spring 140, positioning rod 141, positioning strip plate 150;

[0027] operating rod 200, second transmission rod 210, limiting rod 211, bar-shaped guide rail 220;

[0028] housing 300, cutting blade 310, sleeve 311, second spring 312, arc-shaped guide groove 313, L-shaped connecting rod 320, guide head 321, guide rail 330, circular arc rail 331, tangential rail 332. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment 1, as shown in Figures 1 to 2 a branch and leaf trimmer, which includes a bar-shaped rod 100, a trimming mechanism is installed at the upper end of the bar-shaped rod 100, an operating mechanism is arranged at the lower end of the bar-shaped rod 100, a mounting seat 101 is arranged at the upper end of the bar-shaped rod 100, and a mounting plate 102 is arranged on one side of the mounting seat 101;

[0031] The pruning mechanism includes a U-shaped cutter groove 110, a blade 120, a transmission component, and an elastic connection component. The U-shaped cutter groove 110 is integrally formed and fixed with the upper end of the mounting plate 102. The blade 111 is provided with a hinge seat 121 hinged to the upper end of the mounting plate 102.

[0032] The transmission component includes a strip plate 130, a sliding ring 131, a first transmission rod 132, and a pull wire 133. The strip plate 130 is integrally formed and fixed with the hinge seat 121. The sliding ring 131 is slidably connected to the upper side of the strip rod 100. The two ends of the first transmission rod 132 are respectively hinged to the strip plate 130 and the sliding ring 131. The sliding ring 131 is connected to the upper end of the strip rod 100 through an elastic connection component.

[0033] The upper end of the pull wire 133 is connected to the sliding ring 131, and the lower end of the pull wire 133 is connected to the operating mechanism. The pull wire 133 can be pulled up and down by the operating mechanism.

[0034] When not in use, as Figure 1 and Figure 2 shown, the elastic connection component elastically rebounds, pulling the sliding ring 131 to a high position on the upper side of the strip rod 100. The strip plate 130 is pushed through the first transmission rod 132, so that the hinge seat 121 integrally formed with the strip plate 130 rotates relative to the mounting plate 102, and further the blade 111 flips open relative to the U-shaped cutter groove 110.

[0035] When in use, it includes the following steps:

[0036] ① Hold the operating mechanism at the lower end of the strip rod 100, use the strip rod 100 to lift the pruning mechanism at the upper end to the branches and leaves to be pruned at a high position, and align the branches and leaves to be pruned with the U-shaped cutter groove 110.

[0037] ② By using the operating mechanism at the lower end of the strip rod 100, pull the pull wire 133 downward. The pull wire 133 pulls the sliding ring 131 downward, the elastic connection component is elastically stretched, and the first transmission rod 132 pulls the strip plate 130, so that the hinge seat 121 integrally formed with the strip plate 130 rotates relative to the mounting plate 102, and further the blade 111 flips to close with the U-shaped cutter groove 110 to prune the branches and leaves to be pruned.

[0038] In the present invention, the pruning mechanism is arranged at the upper end of the strip rod, and at the same time, the operating mechanism is arranged at the lower end of the strip rod. The pull wire is pulled by the operating mechanism, so that when in use, only the operation needs to be performed on the lower side of the strip rod, and the pruning mechanism at the upper end of the strip rod can complete the pruning of the branches and leaves, greatly facilitating the pruning operation of the branches and leaves at a high position.

[0039] As an explanation of the elastic connection component in this embodiment, as Figure 2As shown in the figure, the elastic connection component includes a plurality of first springs 140. The two ends of the first spring 140 are respectively connected and fixed to the slip ring 131 and the upper end of the strip-shaped rod 100.

[0040] A plurality of positioning rods 141 are further arranged on the upper side of the strip-shaped rod 100. Each positioning rod 141 is respectively sleeved inside each first spring 140, and each positioning rod 141 slidably penetrates through the slip ring 131.

[0041] By using the first spring 140 as the elastic connection component, the structure is convenient and can realize the up and down return of the slip ring 131 at the same time. At the same time, by arranging a plurality of positioning rods 141, the movement of the slip ring 131 can be positioned, so that the slip ring 131 can slide up and down stably.

[0042] As a further description of this embodiment, in order to keep the pull wire 133 in a stable position, as Figure 1 shown, a positioning strip 150 extending up and down is arranged on the side surface of the strip-shaped rod 100. The positioning strip 150 is provided with a wire passing hole penetrating up and down, and the pull wire 133 slides downward through the wire passing hole.

[0043] By arranging the positioning strip 150 and opening the wire passing hole penetrating up and down, the pull wire 133 can be positioned through the wire passing hole, avoiding the pull wire 133 from being skewed and wound.

[0044] Embodiment 2 further describes the operating mechanism on the basis of Embodiment 1. As Figure 1 and Figure 3 shown, the operating mechanism includes an operating rod 200, a second transmission rod 210 and a strip-shaped guide rail 220. The upper end of the operating rod 200 is hinged to the lower side of the strip-shaped rod 100. The guide rail 230 is fixedly arranged at the lower end of the strip-shaped rod 100 and extends up and down. The upper end of the second transmission rod 210 is hinged to the operating rod 200, and a limiting rod 211 matching the strip-shaped guide rail 220 is processed at the lower end of the second transmission rod 210. The lower end of the second transmission rod 210 is slidably connected to the strip-shaped guide rail 220 through the limiting rod 211. The lower end of the pull wire 133 is connected to the lower end of the second transmission rod 210;

[0045] The operating rod 200 is provided with a strip-shaped cavity, and the upper end of the second transmission rod 210 is hinged to the upper side of the strip-shaped cavity.

[0046] As Figure 1 and Figure 3 shown, when not in use, under the elastic rebound of the first spring 140, the pull wire 133 is pulled upward, so that the pull wire 133 pulls the limiting rod 211 at the lower end of the second transmission rod 210 upward to the upper end of the strip-shaped guide rail 220. Thus, under the transmission of the second transmission rod 210, the operating rod 200 is unfolded relative to the strip-shaped rod 100;

[0047] In use, people can flip the operating rod 200 close to the strip rod 100 by hand, so that the limiting rod 211 at the lower end of the second transmission rod 210 moves downward to the lower end of the strip guide rail 220, causing the second transmission rod 210 to pull down the cable 133 connected thereto, making the slip ring 131 move downward, elastically stretching the first spring 140, and driving the blade 111 to trim the branches and leaves at high places;

[0048] After trimming, people can re-expand the operating rod 200 relative to the strip rod 100 by hand. Through the elastic rebound of the first spring 140, the blade 111 can be re-expanded relative to the U-shaped knife groove 110, and the operating mechanism can return to the unused state, and then the trimming of the next branch and leaf can be carried out.

[0049] Embodiment 3 is based on Embodiment 2. In order to avoid the problem that the blade is easy to hurt people when the trimmer is not in use, the following improvements are made, as Figures 4 to 6 shown, the blade 120 includes a housing 300 and a cutting blade 310. The housing 300 is integrally formed and fixed with the hinge seat 121. A connecting rod is processed at one end of the cutting blade 310 away from the hinge seat 121, and the connecting rod is rotatably connected to the housing 300. A sleeve 311 is processed at one end of the cutting blade 310 close to the hinge seat 121. The housing 300 and the hinge seat 121 are jointly provided with a through hole. The sleeve 311 penetrates downward through the through hole and is rotatably connected to the through hole. A blade flipping mechanism is arranged between the mounting seat 101 and the sleeve 311;

[0050] The blade flipping mechanism includes an L-shaped connecting rod 320 and a guide rail 330. One end of the L-shaped connecting rod 320 is slidably sleeved on the sleeve 311 and connected by a second spring 312. The other end of the L-shaped connecting rod 320 extends toward the side away from the mounting plate 102. An arc-shaped guide groove 313 is formed on the inner wall surface of the sleeve 311 facing the mounting seat 101. The arc-shaped guide groove 313 extends along the length direction of the sleeve 311 and has a flipping degree of 180°. The L-shaped connecting rod 320 is provided with a guide head 321 matching the arc-shaped guide groove 313. The guide rail 330 is fixedly installed between the mounting seat 101. The guide rail 330 is integrally connected by a circular arc rail 331 and a tangential rail 332. The circular arc rail 331 corresponds to the lower side of the hinge seat 121. The tangential rail 332 is tangent to the circular arc rail 331 and extends toward the L-shaped connecting rod 320. The L-shaped connecting rod 320 extends into the guide rail 330.

[0051] When in the unused state, the L-shaped connecting rod 320 is within the tangential rail 332 of the guide rail 330. Therefore, under the elastic action of the second spring 312, the L-shaped connecting rod 320 extends out of the sleeve 311. At this time, the guiding head 321 is at one end of the arc-shaped guiding groove 313 near the opening of the sleeve 311, and the cutting edge of the cutting blade 310 is flipped to the inner side of the housing 300, thus preventing the exposed cutting edge of the cutting blade 310 from hurting people when not in use;

[0052] When in use, as the blade 120 is flipped to merge with the U-shaped blade groove 110, the L-shaped connecting rod 320 will similarly rotate around the hinge seat 121 along with the blade 120. The L-shaped connecting rod 320 will first move along the tangential rail 332, so that the L-shaped connecting rod 320 gradually retracts into the sleeve 311;

[0053] During the process of the L-shaped connecting rod 320 retracting into the sleeve 311, the guiding head 321 will move along the arc-shaped guiding groove 313 on the inner wall of the sleeve 311, so that the sleeve 311 rotates and then the cutting blade 310 rotates; when the L-shaped connecting rod 320 enters the arc-shaped rail 331 from the tangential rail 332, the guiding head 321 of the L-shaped connecting rod 320 will be located at one end of the arc-shaped guiding groove 313 near the deep inside of the sleeve 311 at this time. Since the turning degree of the arc-shaped guiding groove 313 is 180°, the sleeve 311 and the cutting blade 310 will turn 180°, making the cutting edge of the cutting blade 310 flip out;

[0054] As the L-shaped connecting rod 320 moves in the arc-shaped rail 331, the L-shaped connecting rod 320 will no longer continue to retract. Therefore, the cutting edge of the cutting blade 310 will remain in the exposed state. Thus, as the blade 120 continues to flip, the cutting edge of the cutting blade 310 can prune the branches and leaves.

[0055] In this way, when the trimmer of the present invention is not in use, the cutting edge of the cutting blade 310 will automatically flip to the inner side of the housing, and there will be no problem of hurting people.

[0056] Meanwhile, in this embodiment, a locking pin (not shown in the figure) can also be provided between the limiting rod 211 at the lower end of the second transmission rod 210 and the upper end of the strip-shaped guide rail 220 to lock the second transmission rod 210 when not in use, avoiding accidentally operating the operating rod 200 to pull the wire, and then causing the blade 120 to flip and the cutting edge of the cutting blade 310 to be exposed and hurt people; and the locking pin can be removed when in use for normal use.

[0057] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A branch and leaf trimmer, comprising a strip-shaped rod, characterized in that: A trimming mechanism is installed at the upper end of the strip-shaped rod, an operating mechanism is arranged at the lower end of the strip-shaped rod, a mounting seat is provided at the upper end of the strip-shaped rod, and a mounting plate is arranged on one side of the mounting seat; The trimming mechanism includes a U-shaped knife groove, a blade, a transmission component and an elastic connection component. The U-shaped knife groove is integrally formed and fixed with the upper end of the mounting plate, and the blade is provided with a hinge seat hinged to the upper end of the mounting plate; The transmission component includes a strip-shaped plate, a sliding ring, a first transmission rod and a pull wire. The strip-shaped plate is integrally formed and fixed with the hinge seat. The sliding ring is slidably connected to the upper side of the strip-shaped rod. Both ends of the first transmission rod are hinged to the strip-shaped plate and the sliding ring respectively. The sliding ring is connected to the upper end of the strip-shaped rod through the elastic connection component; The upper end of the pull wire is connected to the sliding ring, and the lower end of the pull wire is connected to the operating mechanism. The pull wire can be pulled up and down through the operating mechanism; The blade includes a housing and a cutting blade, and the housing is integrally formed and fixed with the hinge seat; A connecting rod is processed at one end of the cutting blade away from the hinge seat, and the connecting rod is rotatably connected to the housing; A sleeve is processed at one end of the cutting blade close to the hinge seat. A through hole is jointly opened in the housing and the hinge seat. The sleeve penetrates downward through the through hole and is rotatably connected to the through hole; A blade flipping mechanism is arranged between the mounting seat and the sleeve. The blade flipping mechanism includes an L-shaped connecting rod and a guide rail; One end of the L-shaped connecting rod is slidably sleeved with the sleeve and connected by a second spring, and the other end of the L-shaped connecting rod extends toward the side away from the mounting plate; An arc-shaped guide groove is opened on one side of the inner wall of the sleeve facing the mounting seat. The arc-shaped guide groove extends along the length direction of the sleeve and has a flipping degree of 180°. The L-shaped connecting rod is provided with a guide head matching the arc-shaped guide groove; The guide rail is fixed between the mounting seat. The guide rail is integrally connected by a circular arc rail and a tangential rail. The circular arc rail corresponds to the lower side of the hinge seat. The tangential rail is tangent to the circular arc rail and extends toward the L-shaped connecting rod; The L-shaped connecting rod extends into the guide rail.

2. The branch and leaf trimmer according to claim 1, characterized in that: The elastic connection component includes a plurality of first springs. Both ends of the first spring are respectively connected and fixed to the sliding ring and the upper end of the strip-shaped rod.

3. The foliage trimmer according to claim 2, wherein: A plurality of positioning rods are further arranged on the upper side of the strip-shaped rod. Each positioning rod is respectively sleeved inside each first spring, and each positioning rod slidably penetrates through the sliding ring.

4. The branch and leaf trimmer according to claim 3, characterized in that: A positioning strip plate extending up and down is arranged on the side surface of the strip-shaped rod. The positioning strip plate is provided with a threading hole penetrating up and down. The pull wire slides downward through the threading hole.

5. The foliage trimmer according to claim 4, characterized in that: The operating mechanism includes an operating rod, a second transmission rod, and a strip-shaped guide rail. The upper end of the operating rod is hinged to the lower side of the strip-shaped rod. The guide rail is fixedly arranged at the lower end of the strip-shaped rod and extends vertically. The upper end of the second transmission rod is hinged to the operating rod, and a limiting rod matching the strip-shaped guide rail is machined at the lower end of the second transmission rod. The lower end of the second transmission rod is slidably connected to the strip-shaped guide rail through the limiting rod. The lower end of the pull wire is connected to the lower end of the second transmission rod.

6. A branch and leaf trimmer according to claim 5, characterized in that: The operating rod is provided with a strip-shaped cavity, and the upper end of the second transmission rod is hinged to the upper side of the strip-shaped cavity.

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