Branch and leaf trimmer

Abstract

The invention belongs to the technical field of trimming equipment, and particularly relates to a branch and leaf trimmer which comprises a strip-shaped rod, a trimming mechanism is mounted 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 the mounting seat. The pruning mechanism comprises a U-shaped cutter groove, a blade, a transmission assembly and an elastic connecting assembly, the blade is provided with a hinge seat, the transmission assembly comprises a strip-shaped plate, a sliding ring, a first transmission rod and a pull wire, and the first transmission rod is hinged to the strip-shaped plate and the sliding ring; the pruning mechanism is arranged at the upper end of the strip-shaped rod, meanwhile, the operating mechanism is arranged at the lower end of the strip-shaped rod, and the stay wire is pulled by using the operating mechanism, so that the pruning mechanism at the upper end of the strip-shaped rod can complete pruning of branches and leaves only by operating on the lower side of the strip-shaped rod during use, and pruning operation of branches and leaves at high positions is greatly facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of pruning equipment, and in particular relates to a branch and leaf pruner. Background Art

[0002] Trees are a common type of greening plants or agricultural crops. During the growth process of trees, their branches and leaves will continue to grow. The disorderly growth of branches and leaves of greening plants will affect their appearance, while the disorderly growth of 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 pruned regularly.

[0003] Current pruning tools are usually scissors, and operators use scissors to prune branches and leaves of trees. However, when pruning high branches and leaves, it is inconvenient for operators to operate, and they need to use ladders or other lifting equipment to prune. In order to facilitate the pruning of high branches and leaves, we propose a branch and leaf pruning tool. 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 technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

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

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

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

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

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

[0011] A plurality of positioning rods are also arranged on the upper side of the strip rod, each of the positioning rods is sleeved on the inner side of each of the first springs, and each of the positioning rods slides through the slip ring.

[0012] A positioning strip plate extending up and down is arranged on the side of the strip rod, and a threading hole penetrating up and down is opened on the positioning strip plate, and the pull wire slides downward and passes through the threading hole.

[0013] The operating mechanism includes an operating rod, a second transmission rod and a strip guide rail. The upper end of the operating rod is hinged to the lower side of the strip rod. The guide rail is fixedly arranged at the lower end of the strip rod and extends up and down. The upper end of the second transmission rod is hinged to the operating rod, and the lower end of the second transmission rod is processed with a limit rod matching the strip guide rail. The lower end of the second transmission rod is slidably connected to the strip guide rail through the limit rod, and the lower end of the pull 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 shell and a cutting blade, the shell 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, the connecting rod is rotatably connected to the shell, a sleeve is processed at one end of the cutting blade close to the hinge seat, the shell and the hinge seat are jointly provided with a through hole, the sleeve penetrates downwardly through the through hole and is rotatably connected to the through hole, and a blade flipping mechanism is arranged between the mounting seat and the sleeve.

[0016] The blade flipping mechanism includes an L-shaped connecting rod and a guide rail, one end of the L-shaped connecting rod is slidably mounted on the sleeve and is connected by a second spring, and the other end of the L-shaped connecting rod extends toward a side away from the mounting plate, and an arc-shaped guide groove is provided on the inner wall of the sleeve facing the mounting seat, and 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, and the guide rail is fixed to the mounting seat, and the guide rail is connected in one piece by a circular arc rail and a tangential rail, and the circular arc rail corresponds to the lower side of the articulated seat, and the tangential rail is in the tangential direction of the circular arc rail and extends toward the L-shaped connecting rod, and the L-shaped connecting rod extends into the guide rail.

[0017] The present invention arranges the trimming mechanism at the upper end of the bar, and arranges the operating mechanism at the lower end of the bar. The operating mechanism is used to pull the pull wire, so that when in use, only the lower side of the bar needs to be operated to enable the trimming mechanism at the upper end of the bar to complete the trimming of branches and leaves, which greatly facilitates the trimming of branches and leaves at high places. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

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

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of the trimming mechanism at A;

[0021] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of the operating mechanism at B;

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

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

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of the cross-sectional structure at C;

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

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

[0027] An operating rod 200, a second transmission rod 210, a limiting rod 211, and a strip guide rail 220;

[0028] The housing 300 , the cutting blade 310 , the sleeve 311 , the second spring 312 , the arc-shaped guide groove 313 , the L-shaped connecting rod 320 , the guide head 321 , the guide rail 330 , the arc-shaped rail 331 , and the tangential rail 332 . DETAILED DESCRIPTION

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

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

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

[0032] The transmission assembly includes a strip plate 130, a slip 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 slip 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 slip ring 131. The slip ring 131 is connected to the upper end of the strip rod 100 through an elastic connection assembly.

[0033] The upper end of the pull wire 133 is connected to the slip 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, Figure 1 and Figure 2 As shown, the elastic connection assembly elastically rebounds, pulling the sliding ring 131 to a high position on the upper side of the strip rod 100, and pushing the strip plate 130 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, thereby causing the blade 111 to flip open relative to the U-shaped blade groove 110;

[0035] When using it, the following steps are included:

[0036] ① Holding the operating mechanism at the lower end of the bar 100, use the bar 100 to raise the pruning mechanism at the upper end to the branches and leaves to be pruned at a high place, and align the branches and leaves to be pruned with the U-shaped knife groove 110;

[0037] ② By using the operating mechanism at the lower end of the strip rod 100, the pull wire 133 is pulled downward, and the pull wire 133 pulls the slip ring 131 to move 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 then the blade 111 flips over to close with the U-shaped blade groove 110, and the branches and leaves to be pruned are pruned.

[0038] The present invention arranges the trimming mechanism at the upper end of the bar, and arranges the operating mechanism at the lower end of the bar. The operating mechanism is used to pull the pull wire, so that when in use, only the lower side of the bar needs to be operated to enable the trimming mechanism at the upper end of the bar to complete the trimming of branches and leaves, which greatly facilitates the trimming of branches and leaves at high places.

[0039] As an illustration of the elastic connection component in this embodiment, Figure 2As shown, the elastic connection assembly includes a plurality of first springs 140, and the two ends of the first springs 140 are respectively connected and fixed to the slip ring 131 and the upper end of the strip rod 100;

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

[0041] By using the first spring 140 as an elastic connection component, the structure is convenient and can realize the up and down return of the slip ring 131. At the same time, by setting 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 explanation of this embodiment, in order to keep the pull wire 133 in a stable position, as shown in FIG. Figure 1 As shown, a positioning strip plate 150 extending up and down is provided on the side of the strip rod 100, and a threading hole penetrating up and down is opened on the positioning strip plate 150, and the pull wire 133 slides downward and passes through the threading hole.

[0043] By providing the positioning strip 150 and opening the threading holes penetrating from top to bottom, the pull wire 133 can be positioned through the threading holes, thereby preventing the pull wire 133 from being skewed and entangled.

[0044] Embodiment 2 is based on the embodiment 1, and further describes the operating mechanism. Figure 1 and Figure 3 As shown, the operating mechanism includes an operating rod 200, a second transmission rod 210 and a strip guide rail 220. The upper end of the operating rod 200 is hinged to the lower side of the strip rod 100. The guide rail 230 is fixedly arranged at the lower end of the strip rod 100 and extends up and down. The upper end of the second transmission rod 210 is hinged to the operating rod 200, and the lower end of the second transmission rod 210 is processed with a limit rod 211 matching the strip guide rail 220. The lower end of the second transmission rod 210 is slidably connected to the strip guide rail 220 through the limit rod 211, and 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] like Figure 1 and Figure 3 As 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 limit rod 211 at the lower end of the second transmission rod 210 to move upward to the upper end of the strip guide rail 220, so that under the transmission of the second transmission rod 210, the operating rod 200 is unfolded relative to the strip rod 100;

[0047] When in use, people turn the operating rod 200 toward 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, so that the second transmission rod 210 pulls the pull wire 133 connected thereto downward, so that the sliding ring 131 moves downward, elastically stretches the first spring 140, and drives the blade 111 to trim the high branches and leaves;

[0048] After pruning, people manually unfold the operating rod 200 relative to the strip rod 100, and the blade 111 can be unfolded relative to the U-shaped blade groove 110 through the elastic rebound of the first spring 140, and the operating mechanism returns to the unused state, so that the next branch and leaf can be pruned.

[0049] Embodiment 3 is based on Embodiment 2, and in order to avoid the problem that the blade of the trimmer is easy to hurt people when it is not in use, the following improvements are made: Figures 4 to 6 As shown, the blade 120 includes a shell 300 and a cutting blade 310, the shell 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, the connecting rod is rotatably connected to the shell 300, a sleeve 311 is processed at one end of the cutting blade 310 close to the hinge seat 121, the shell 300 and the hinge seat 121 are jointly provided with a through hole, the sleeve 311 penetrates the through hole downwardly and is rotatably connected to the through hole, and a blade flipping mechanism is provided 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 mounted on the sleeve 311 and connected through a second spring 312. The other end of the L-shaped connecting rod 320 extends toward a side away from the mounting plate 102. An arc-shaped guide groove 313 is provided on the inner wall 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 fixed between the mounting seat 101, and the guide rail 330 is connected as a whole by the circular arc rail 331 and the tangential rail 332. The circular arc rail 331 corresponds to the lower side of the hinge seat 121, and the tangential rail 332 is in the tangential direction of 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 not in use, the L-shaped connecting rod 320 is in 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 guide head 321 is at one end of the arc-shaped guide groove 313 close to the opening of the sleeve 311, and the sharp edge of the cutting blade 310 is turned to the inside of the housing 300, so as to avoid the exposed sharp edge of the cutting blade 310 from hurting people when not in use;

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

[0053] When the L-shaped connecting rod 320 is received in the sleeve 311, the guide head 321 will move along the arc-shaped guide groove 313 on the inner wall of the sleeve 311, so that the sleeve 311 rotates and the cutting blade 310 rotates; when the L-shaped connecting rod 320 enters the arc-shaped rail 331 from the tangential rail 332, the guide head 321 of the L-shaped connecting rod 320 will be located at one end of the arc-shaped guide groove 313 close to the inner depth of the sleeve 311, and since the turning degree of the arc-shaped guide groove 313 is 180°, the sleeve 311 and the cutting blade 310 will turn over 180°, so that the sharp edge of the cutting blade 310 is turned over and exposed;

[0054] As the L-shaped connecting rod 320 moves on the arc-shaped rail 331, the L-shaped connecting rod 320 will no longer be retracted, so the sharp edge of the cutting blade 310 will continue to be exposed, so that as the blade 120 continues to flip, the sharp edge of the cutting blade 310 can trim the branches and leaves.

[0055] In this way, when the trimmer of the present invention is not in use, the sharp edge of the cutting blade 310 can be automatically turned over to the inside of the housing, and no injury will occur.

[0056] At the same time, in this embodiment, a locking pin (not shown in the figure) can be set between the limit rod 211 at the lower end of the second transmission rod 210 and the upper end of the strip guide rail 220, so that the second transmission rod 210 can be locked when not in use to avoid misoperation of the operating rod 200 and pulling the pull wire, which in turn causes the blade 120 to flip over and expose the sharp edge of the cutting blade 310 to injure people; when in use, the locking pin can be removed for normal use.

[0057] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating 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 ideas 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 rod, an operating mechanism is provided at the lower end of the strip rod, a mounting seat is provided at the upper end of the strip rod, and a mounting plate is provided on one side of the mounting seat; The trimming mechanism comprises a U-shaped knife groove, a blade, a transmission assembly and an elastic connection assembly, wherein the U-shaped knife groove is integrally formed and fixed to the upper end of the mounting plate, and the blade is provided with an articulated seat hinged to the upper end of the mounting plate; The transmission assembly includes a strip plate, a slip ring, a first transmission rod and a pull wire, the strip plate is integrally formed and fixed with the hinge seat, the slip ring is slidably connected to the upper side of the strip rod, the two ends of the first transmission rod are respectively hinged to the strip plate and the slip ring, and the slip ring is connected to the upper end of the strip rod through the elastic connection assembly; The upper end of the pull wire is connected to the slip ring, and the lower end of the pull wire is connected to the operating mechanism, and the pull wire can be pulled up and down by the operating mechanism.

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

3. A branch and leaf trimmer according to claim 2, characterized in that: A plurality of positioning rods are also arranged on the upper side of the strip rod, each of the positioning rods is sleeved on the inner side of each of the first springs, and each of the positioning rods slides through the slip ring.

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

5. A branch and leaf trimmer according to claim 4, characterized in that: The operating mechanism includes an operating rod, a second transmission rod and a strip guide rail. The upper end of the operating rod is hinged to the lower side of the strip rod. The guide rail is fixedly arranged at the lower end of the strip rod and extends up and down. The upper end of the second transmission rod is hinged to the operating rod, and the lower end of the second transmission rod is processed with a limit rod matching the strip guide rail. The lower end of the second transmission rod is slidably connected to the strip guide rail through the limit rod, and 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.

7. A branch and leaf trimmer according to claim 6, characterized in that: The blade comprises a housing and a cutting blade, and the housing is integrally formed and fixed with the hinge seat; A connecting rod is processed on 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, the shell and the hinge seat are jointly provided with a through hole, the sleeve passes through the through hole downward and is rotatably connected to the through hole; A blade flipping mechanism is arranged between the mounting seat and the sleeve.

8. A branch and leaf trimmer according to claim 7, characterized in that: The blade flipping mechanism includes an L-shaped connecting rod and a guide rail; One end of the L-shaped connecting rod is slidably mounted on the sleeve and connected via a second spring, and the other end of the L-shaped connecting rod extends toward a side away from the mounting plate; An arc-shaped guide groove is provided on the 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 turning angle of 180°, and the L-shaped connecting rod is provided with a guide head matching the arc-shaped guide groove; The guide rail is fixedly mounted between the mounting seat, and the guide rail is connected 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 in the tangential direction of the circular arc rail and extends toward the L-shaped connecting rod; The L-shaped connecting rod extends into the guide rail.

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