Forestry pruning device

Abstract

The utility model discloses a forestry pruning device, and relates to the technical field of pruning devices, the forestry pruning device comprises a scissors device and an arm lever assembly fixedly installed at the force arm end of the scissors device, the arm lever assembly comprises a first arm lever, a second arm lever, a third arm lever and a fourth arm lever, and one end of the first arm lever is fixedly connected with the force arm end of the scissors device; the second arm rod is movably arranged at one end of the first arm rod, a limiting block is movably arranged at one end of the second arm rod, and a limiting groove is formed in the end, directly facing the second arm rod, of the first arm rod. The arm rod assembly in the pruning device is arranged to be of a split structure composed of the first arm rod and the second arm rod, the second arm rod can rotate at the end of the first arm rod, and the telescopic limiting block arranged on the end face of the second arm rod is matched with the limiting groove formed in the end face of the first arm rod; the second arm rod can be rotationally folded and unfolded and locked at the end part of the first arm rod, so that the pruning device is convenient to fold and store while the use is guaranteed, and the use convenience of the pruning device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pruning tools, in particular to a forestry pruning tool. Background Art

[0002] Forestry refers to protecting the ecological environment and maintaining ecological balance. In order to make forestry trees more beautiful, people will use pruners to trim the trees.

[0003] In the prior art, traditional pruning tools are generally of an X-shaped structure, in which the rotation of two arms drives the rotation of two scissor heads to achieve the cutting process of branches and leaves; however, in actual use, the arms of the pruning tools currently used are generally of an integrated structure, which results in the overall size of the pruning tools being relatively large, making it inconvenient to carry or store them, thus affecting the convenience of using the pruning tools. Therefore, a forestry pruning tool that can be folded and stored is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a forestry pruning tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a forestry pruning tool, comprising a scissors device and an arm assembly fixedly mounted on the force arm end of the scissors device, the arm assembly comprising:

[0006] A first arm, one end of which is fixedly connected to the force arm end of the scissor device;

[0007] The second arm is movably arranged at one end of the first arm away from the scissors device and can rotate around the side of the second arm. The end of the second arm facing the first arm is movably provided with a limit block which can be telescoped on the end face of the second arm. The end of the first arm facing the second arm is provided with a limit groove matching the limit block.

[0008] Preferably, adjacent ends of the first arm and the second arm on the same side are fixedly connected with a connecting hinge, and the second arm is rotatably connected to the first arm via the connecting hinge.

[0009] Preferably, a receiving groove is provided on a side of the second arm directly facing the first arm, the limit block is movably inserted into the inner side of the receiving groove, and a return spring is fixedly connected between the receiving groove and the opposite side of the limit block.

[0010] Preferably, the outer wall of the second arm is provided with a connecting groove connected to the storage groove, the end of the limit block extending into the inner side of the storage groove is fixedly connected to a toggle block, and the end of the toggle block extends through the connecting groove to the outside of the second arm.

[0011] Preferably, the end of the second arm away from the first arm is movably connected with the third arm, and the end of the third arm close to the second arm is provided with a locking mechanism, which is used to lock the third arm in the position of the outer wall of the second arm, and the end of the third arm away from the second arm is fixedly connected with a handle sleeve.

[0012] Preferably, the locking mechanism includes a connecting sleeve, which is fixedly sleeved on the end of the outer wall of the third arm near the second arm, and the outer wall of the connecting sleeve is threadedly connected with a knob screw, one end of the knob screw passes through the inner side of the third arm and fits against the outer wall of the second arm.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model arranges the arm assembly in the pruning device into a split structure consisting of a first arm and a second arm, and utilizes the second arm to be able to rotate at the end of the first arm, and cooperates with a retractable limit block provided on the end face of the second arm and a limit groove provided on the end face of the first arm, so that the second arm can be rotated, folded, unfolded and locked at the end face of the first arm, so that it is convenient to fold and store while ensuring use, thereby improving the convenience of using the pruning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model from top view.

[0016] Figure 2 It is a partial three-dimensional cross-sectional structural schematic diagram of the first arm and the second arm of the utility model.

[0017] Figure 3 It is a partial three-dimensional structural schematic diagram of the second arm and the third arm of the utility model.

[0018] In the figure: 100, scissor device; 200, arm assembly; 201, first arm; 202, second arm; 203, storage slot; 204, limit block; 205, return spring; 206, connecting slot; 207, toggle block; 208, limit slot; 209, connecting hinge; 210, third arm; 211, connecting sleeve; 212, knob screw; 213, handle sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3 The forestry pruning device shown in the figure includes a scissor device 100 and an arm assembly 200 fixedly installed at the arm end of the scissor device 100, the arm assembly 200 includes a first arm 201 and a second arm 202, one end of the first arm 201 is fixedly connected to the arm end of the scissor device 100, the second arm 202 is movably arranged at an end of the first arm 201 away from the scissor device 100 and can rotate around the side of the second arm 202, the end of the second arm 202 facing the first arm 201 is movably provided with a limit block 204 that can be telescopic on the end face of the second arm 202, and the end of the first arm 201 facing the second arm 202 is provided with a stop block 204 that matches the stop block 204 Limiting groove 208; the second arm 202 can rotate at one end of the first arm 201, so that the second arm 202 can be rotated to a position parallel to the side wall of the first arm 201, thereby achieving the purpose of shortening the length of the arm assembly 200, reducing the overall volume of the pruning tool, thereby facilitating storage or storage. When the second arm 202 is unfolded to the extension line position of one end of the first arm 201, the end of the limiting block 204 extends out and is inserted into the limiting groove 208, thereby achieving the limit locking of the connecting end surface position of the first arm 201 and the second arm 202, so that the second arm 202 cannot rotate, thereby ensuring the normal use of the arm assembly 200.

[0021] It should be noted that the adjacent ends of the first arm 201 and the second arm 202 on the same side are fixedly connected with a connecting hinge 209, and the second arm 202 is rotatably connected to the first arm 201 through the connecting hinge 209. Through the setting of the connecting hinge 209, the second arm 202 can be rotated to a position parallel to one side of the first arm 201; a storage groove 203 is provided on the side of the second arm 202 facing the first arm 201, and a limit block 204 is movably inserted into the inner side of the storage groove 203, and a return spring 205 is fixedly connected between the storage groove 203 and the opposite side of the limit block 204. The storage groove 203 can store the limit block 204, so that the limit block 204 can be extended and retracted at the position of the storage groove 203, and the elastic deformation characteristics of the return spring 205 make the limit block 204 elastically extend and retract in the storage groove 203, so that the locking operation between the first arm 201 and the second arm 202 is more convenient.

[0022] In a preferred embodiment, a connecting slot 206 communicating with the storage slot 203 is formed on the outer wall of the second arm 202, and the end of the limit block 204 extending into the inner side of the storage slot 203 is fixedly connected with a toggle block 207, and the end of the toggle block 207 extends through the connecting slot 206 to the outside of the second arm 202. The toggle block 207 can be connected to the limit block 204 through the connecting slot 206, so that the operator can manually push the toggle block 207 to drive the limit block 204 to move in the storage slot 203, so that the limit block 204 can be manually driven to retract in the storage slot 203, thereby improving the convenience of the unlocking operation.

[0023] Furthermore, an end of the second arm 202 away from the first arm 201 is movably sleeved with a third arm 210, and an end of the third arm 210 close to the second arm 202 is provided with a locking mechanism, which is used to lock the third arm 210 at the outer wall position of the second arm 202. The third arm 210 cooperates with the setting of the locking mechanism, so that the length of the arm assembly 200 can be further extended, so that the pruning tool can cut branches and leaves at a higher or farther position, further improving the adaptability of the pruning tool. At the same time, the third arm 210 can be extended and retracted on the second arm 202, so as to realize the adjustable length function of the arm assembly 200; the end of the third arm 210 away from the second arm 202 is fixedly sleeved with a handle cover 213, and the handle cover 213 is made of rubber to increase the comfort and anti-slip property of the user's grip. In a preferred embodiment, the locking mechanism includes a connecting sleeve 211, which is fixedly sleeved on the end of the outer wall of the third arm 210 close to the second arm 202, and the outer wall of the connecting sleeve 211 is threadedly connected with a knob screw 212, one end of the knob screw 212 passes through the inner side of the third arm 210 and fits against the outer wall of the second arm 202. The user manually rotates the knob screw 212 to make one end of the knob screw 212 squeeze the outer wall of the second arm 202, and the locking and fixation between the second arm 202 and the third arm 210 is achieved by the squeezing force. To unlock, the user only needs to rotate the knob screw 212 in the opposite direction so that when one end of the knob screw 212 has no squeezing force on the outer wall of the second arm 202, the third arm 210 can be moved on the second arm 202 to achieve the purpose of contraction, wherein the length of the third arm 210 is less than that of the second arm 202.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forestry pruning tool, comprising a scissor device (100) and an arm assembly (200) fixedly mounted on the force arm end of the scissor device (100), characterized in that: The arm assembly (200) comprises: A first arm (201), one end of the first arm (201) being fixedly connected to the force arm end of the scissor device (100); The second arm (202) is movably arranged at one end of the first arm (201) away from the scissor device (100) and can rotate around the side of the second arm (202); the second arm (202) is movably provided with a limit block (204) that can be extended and retracted on the end face of the second arm (202) at one end facing the first arm (201); and the first arm (201) is provided with a limit groove (208) that matches the limit block (204) at one end facing the second arm (202).

2. A forestry pruning tool according to claim 1, characterized in that: Adjacent ends of the first arm (201) and the second arm (202) on the same side are fixedly connected with a connecting hinge (209), and the second arm (202) is rotatably connected to the first arm (201) via the connecting hinge (209).

3. A forestry pruning tool according to claim 2, characterized in that: A receiving groove (203) is provided on a side of the second arm (202) facing the first arm (201); the limit block (204) is movably inserted into the inner side of the receiving groove (203); and a return spring (205) is fixedly connected between the receiving groove (203) and the opposite side of the limit block (204).

4. A forestry pruning tool according to claim 3, characterized in that: The outer wall of the second arm (202) is provided with a connecting slot (206) connected to the receiving slot (203); the end of the limit block (204) extending into the inner side of the receiving slot (203) is fixedly connected to a toggle block (207); the end of the toggle block (207) passes through the connecting slot (206) and extends to the outside of the second arm (202).

5. A forestry pruning tool according to claim 4, characterized in that: The end of the second arm (202) away from the first arm (201) is movably sleeved with a third arm (210); the end of the third arm (210) close to the second arm (202) is provided with a locking mechanism, and the locking mechanism is used to lock the third arm (210) at the outer wall position of the second arm (202); the end of the third arm (210) away from the second arm (202) is fixedly sleeved with a handle sleeve (213).

6. A forestry pruning tool according to claim 5, characterized in that: The locking mechanism comprises a connecting sleeve (211), the connecting sleeve (211) being fixedly sleeved on the end of the outer wall of the third arm (210) close to the second arm (202), the outer wall of the connecting sleeve (211) being threadedly connected with a knob screw (212), one end of the knob screw (212) passing through the inner side of the third arm (210) and being in contact with the outer wall of the second arm (202).

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