Adjustable tree pruning saw

Abstract

The utility model relates to the technical field of tree pruning saw structures, in particular to an adjustable tree pruning saw which comprises a pruning saw blade, an assembly rod set is arranged on the right side of the pruning saw blade, a telescopic rod set is arranged on the right side of the assembly rod set and comprises a shaft barrel, a pull rod is inserted into the shaft barrel, and a telescopic rod is arranged on the right side of the telescopic rod set. The tail end of the drawing rod penetrates through one side of the shaft barrel and then is fixedly connected with the bottom rod, a threaded plug pin is inserted into the surface of the shaft barrel through a threaded hole, and the shaft end of the threaded plug pin is inserted into the drawing rod through a positioning hole. The telescopic design is adopted, the overall length is convenient to change, compared with a traditional structure, the device is pulled in the shaft barrel through the pull rod, the threaded plug pin is inserted into the positioning hole of the pull rod after being rotated, the overall length of the telescopic rod set can be changed, and the device has adjustability; therefore, the pruning requirements of various tree branches in daily life are met.

Description

Technical Field

[0001] This utility model relates to the technical field of tree pruning saw structure, and in particular to an adjustable tree pruning saw. Background Technology

[0002] With the continuous development of urban greening and garden management, tree pruning has become an important part of daily maintenance work. Traditional tree pruning tools, such as hand saws, although they meet the pruning needs to a certain extent, still have many shortcomings in actual use.

[0003] Manual pruning saws typically consist of a blade and a handle. To handle pruning branches high up in the tree, a long pole is attached to the bottom of the handle. The operator holds the pole and raises the saw to the desired height to cut the branch. However, because the pole is of fixed length, its considerable height makes storage inconvenient and lacks adjustability, making it difficult to meet the pruning needs of trees at different heights. Therefore, an adjustable tree pruning saw is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable tree trimming saw includes a trimming saw blade, an assembly rod assembly on the right side of the trimming saw blade, a telescopic rod assembly on the right side of the assembly rod assembly, the telescopic rod assembly including a shaft cylinder, a pull rod inserted inside the shaft cylinder, and the end of the pull rod passing through one side of the shaft cylinder and being connected and fixed to a base rod, and a threaded pin inserted through a threaded hole on the surface of the shaft cylinder, and the end of the threaded pin being inserted inside the pull rod through a positioning hole.

[0007] Preferably, the bottom rod surface is connected to an anti-detachment rod, the bottom rod end is connected to a pull handle, and the threaded pin pull ring end design allows for easy rotation after the pull ring end is placed upright.

[0008] Preferably, one end of the threaded pin shaft is provided with a pull ring end, and the surface of the shaft cylinder is provided with a protrusion that matches the pull ring end of the threaded pin.

[0009] Preferably, the pull rod has a hexagonal structure, and several positioning holes are equidistantly arranged horizontally on the surface of the pull rod. The hexagonal structure design of the pull rod cooperates with the pull groove of the shaft cylinder to prevent the pull rod from deflecting during pulling.

[0010] Preferably, the assembly rod group includes several assembly shafts with threaded connections at both ends. One end of the assembly shaft is provided with a threaded hole, and the other end of the assembly shaft is provided with a threaded shaft. The threaded shaft end of the assembly shaft is threadedly connected to the end of the trimmer saw. The assembly shafts can be connected end to end by thread to ensure assembly. Multiple assembly shafts can be matched at any time and can be freely assembled.

[0011] Preferably, the surface of the assembly shaft is symmetrically provided with two extension plates, and the left and right sides of the extension plates are inclined. The design of the extension plates makes it easy for fingers to apply pressure to the extension plates and control the rotation of the assembly shaft.

[0012] Preferably, a hanging plate is connected to one side of the assembly shaft, and a hook sleeve is connected to the other side of the assembly shaft. The groove on the surface of the hook sleeve is adapted to the hanging plate. When the assembly shaft is not in use and is placed and stored for daily use, the assembly shaft on one surface can be inserted into the groove of the hook sleeve on the surface of the other assembly shaft, which is convenient for side-by-side stacking and storage.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. By adopting a telescopic design, the overall length can be easily changed. Compared with the traditional structure, this device can be pulled out of the shaft cylinder by a pull rod, and the threaded pin is inserted into the positioning hole of the pull rod after rotation. This can change the overall length of the telescopic rod assembly, making the device adjustable and thus adaptable to the daily pruning needs of various tree branches.

[0015] 2. By setting up an assembly rod group, the overall length of the device can be further extended. This device uses several assembly shafts threaded together between the telescopic rod group and the pruning saw blade. After the telescopic rod group is adjusted to its limit, it can be further extended. The length of the assembly shaft is constant, and the number can be freely selected for assembly to meet the needs of special scenarios and reduce the probability of trees being too tall and difficult to prune. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of an adjustable tree trimming saw proposed in this utility model.

[0018] Figure 2 This is a three-dimensional disassembly diagram of the assembly rod group in an adjustable tree trimming saw proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the storage assembly state structure of the assembly rod group in an adjustable tree trimming saw proposed in this utility model.

[0020] Figure 4 This is a three-dimensional disassembly diagram of the telescopic rod assembly in an adjustable tree trimming saw proposed in this utility model.

[0021] In the diagram: 1. Trimming saw blade; 2. Assembly rod assembly; 21. Assembly shaft; 22. Outer plate; 23. Hanging plate; 24. Hook sleeve; 3. Telescopic rod assembly; 31. Shaft sleeve; 32. Pull-out rod; 33. Base rod; 34. Anti-detachment rod; 35. Pull handle; 36. Threaded pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-4 An adjustable tree trimming saw includes a trimming saw blade 1, an assembly rod group 2 on the right side of the trimming saw blade 1, and a telescopic rod group 3 on the right side of the assembly rod group 2. The telescopic rod group 3 includes a shaft cylinder 31, a pull rod 32 inserted inside the shaft cylinder 31, and the end of the pull rod 32 passes through one side of the shaft cylinder 31 and is connected and fixed to a base rod 33. A threaded pin 36 is inserted through a threaded hole on the surface of the shaft cylinder 31, and the shaft end of the threaded pin 36 is inserted into the pull rod 32 through a positioning hole.

[0024] An anti-detachment rod 34 is connected to the surface of the bottom rod 33, and a pull handle 35 is connected to the end of the bottom rod 33.

[0025] The threaded pin 36 has a pull ring end at one end, and the surface of the shaft cylinder 31 has a protrusion that matches the pull ring end of the threaded pin 36.

[0026] The pull rod 32 has a hexagonal structure, and several positioning holes are evenly distributed horizontally on the surface of the pull rod 32.

[0027] The assembly rod assembly 2 includes several assembly shafts 21 with threaded connections at both ends. One end of the assembly shaft 21 is provided with a threaded hole, and the other end of the assembly shaft 21 is provided with a threaded shaft. The threaded shaft end of the assembly shaft 21 is threadedly connected to the end of the trimmer saw 1.

[0028] Two extension plates 22 are symmetrically arranged on the surface of the assembly shaft 21, and the left and right sides of the extension plates 22 are inclined.

[0029] A hanging plate 23 is connected to one side of the assembly shaft 21, and a hook sleeve 24 is connected to the other side of the assembly shaft 21, and the groove on the surface of the hook sleeve 24 is compatible with the hanging plate 23.

[0030] A through observation groove is provided on the surface of the shaft cylinder 31 near the threaded pin 36, allowing observation of the engagement status between the threaded pin 36 shaft end and the positioning hole of the shaft cylinder 31 during adjustment. When the operator holds the base rod 33 and moves it back and forth to control the saw teeth of the pruning saw 1 to cut the branches, the anti-slip rod 34 provides a hand protection effect and prevents slippage. The pull ring end design of the threaded pin 36 allows for easy rotation after the pull ring end is placed upright. At the same time, the pull ring end can pull the threaded pin 36. After the threaded pin 36 is fixed to the pull rod 32, the pull ring end flips with the shaft end, allowing the inner cavity of the pull ring end to engage with the protrusion on the shaft cylinder 31.

[0031] The hexagonal structure of the pull rod 32, in conjunction with the pull slot of the shaft cylinder 31, prevents the pull rod 32 from deflecting during pulling, thus preventing it from affecting the engagement between the pull rod 32 and the threaded pin 36. Several positioning holes on the surface of the pull rod 32 allow for multi-stage adjustment. Several assembly shafts 21 can be connected end-to-end via threads. The threaded hole of the last assembly shaft 21 connects with the threaded shaft of the shaft cylinder 31, and the threaded end of the top assembly shaft 21 can be inserted into the threaded hole of the trimmer saw 1, ensuring assembly. Multiple assembly shafts 21 can be matched at any time, allowing for free assembly and improving practicality.

[0032] The design of the extension plate 22 facilitates pressure application by fingers to control the rotation of the assembly shaft 21, ensuring convenient end-to-end connection of the two assembly shafts 21 and providing effective anti-slip properties. The inclined design on both sides of the extension plate 22 prevents corner bumps. When the assembly shafts 21 are not in use and are being stored, one assembly shaft 21 can be inserted into the slot of the hook 24 on the surface of the other assembly shaft 21 for easy side-by-side stacking and storage, preventing rolling during storage and ensuring the stability of the assembly shafts 21 during storage.

[0033] Working principle: According to the appendix Figure 1 With appendix Figure 4 As shown, in daily use, the threaded end of the shaft cylinder 31 can be directly inserted into the end of the trimmer saw 1. By pulling the bottom rod 33, the pull rod 32 can be moved in the shaft cylinder 31. When the length is adjusted appropriately, the positioning hole of the pull rod 32 can be observed through the through groove on the surface of the shaft cylinder 31. By aligning the positioning hole of the pull rod 32 with the shaft end of the threaded pin 36, the threaded pin 36 can be rotated so that the shaft end of the threaded pin 36 is inserted into the positioning hole of the pull rod 32 for locking and fixing.

[0034] Secondly, according to the appendix Figure 2 With appendix Figure 3As shown, when the maximum position of the pull rod 32 in the shaft cylinder 31 is still not met, the shaft cylinder 31 and the trimmer saw 1 can be rotated apart. According to the actual use requirements, the first and last threads of the multiple assembly shafts 21 are connected, and the multiple assembly shafts 21 are combined to form a new shaft group. The threaded shaft at one end of the shaft group is connected to the threaded hole of the trimmer saw 1, and the other end of the shaft group is connected to the threaded shaft end of the shaft cylinder 31, thereby completing the adaptation assembly.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable tree pruning saw comprising a pruning saw blade (1), characterized in that, The trimmer saw (1) is provided with an assembly rod group (2) on the right side, and a telescopic rod group (3) is provided with a telescopic rod group (3) on the right side. The telescopic rod group (3) includes a shaft cylinder (31), and a pull rod (32) is inserted inside the shaft cylinder (31). The end of the pull rod (32) passes through one side of the shaft cylinder (31) and is connected and fixed to the bottom rod (33). A threaded pin (36) is inserted through a threaded hole on the surface of the shaft cylinder (31), and the end of the threaded pin (36) is inserted into the pull rod (32) through a positioning hole.

2. The adjustable tree trimming saw according to claim 1, characterized in that, The bottom rod (33) is connected to an anti-detachment rod (34), and the bottom rod (33) is connected to a handle (35).

3. An adjustable tree trimming saw as defined in claim 1 wherein, One end of the threaded pin (36) shaft is provided with a pull ring end, and the surface of the shaft cylinder (31) is provided with a protrusion that matches the pull ring end of the threaded pin (36).

4. An adjustable tree trimming saw as defined in claim 1 wherein, The pull rod (32) has a hexagonal structure, and several positioning holes are equidistantly arranged horizontally on the surface of the pull rod (32).

5. An adjustable tree trimming saw as defined in claim 1 wherein, The assembly rod group (2) includes several assembly shafts (21) with threaded connections at both ends. One end of the assembly shaft (21) is provided with a threaded hole, and the other end of the assembly shaft (21) is provided with a threaded shaft. The threaded shaft end of the assembly shaft (21) is threadedly connected to the end of the trimmer saw (1).

6. An adjustable tree trimming saw as defined in claim 5 wherein, The assembly shaft (21) has two symmetrically arranged extension plates (22) on its surface, and the left and right sides of the extension plates (22) are inclined.

7. An adjustable tree trimming saw as defined in claim 6 wherein, The assembly shaft (21) is connected to a hanging plate (23) on one side and a hook sleeve (24) on the other side, and the groove on the surface of the hook sleeve (24) is adapted to the hanging plate (23).

Images