Pruning device for garden construction

By designing a pruning pruner with a detachable blade and an adjustable hand-held rod length, the problem of the blade being worn and unable to be replaced is solved, thus reducing the cost of use and extending the life of the equipment.

CN223472633UActive Publication Date: 2025-10-28BEIJING XIJING GREEN LANDSCAPING CO LTD
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Patent Information

Application Number
CN202423058045.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-10-28
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

The blade head of the existing pruning shears is fixedly connected to the handle, and after long-term use, it is worn out and cannot be replaced, resulting in increased use costs.

Method used

A detachable cutter head structure is designed, with the mounting block and mounting bracket connected by fasteners, allowing the replacement of damaged cutter heads, and the length of the handheld rod can be adjusted by a threaded rod and knob to suit different needs.

Benefits of technology

The blade head can be detached and replaced, which reduces the cost of pruning work, and the length of the hand-held rod can be adjusted to meet different pruning needs, thereby extending the service life.

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Abstract

The utility model relates to the technical field of branch pruning, and discloses a pruning device for garden construction, which comprises a first connecting piece, one side of the first connecting piece is rotatably connected with a second connecting piece, and one side of the first connecting piece and one side of the second connecting piece are fixedly connected with mounting cylinders. Mounting blocks are slidably connected to the interiors of the two mounting cylinders, one ends of the two mounting blocks are fixedly connected with mounting frames, one sides of the two mounting frames are in threaded connection with fasteners, one ends of the two fasteners are in threaded connection with one sides of the two mounting blocks, and the other ends of the two fasteners are in threaded connection with the other sides of the two mounting blocks. One side of one mounting frame is fixedly connected with a first tool bit. When the first tool bit and the second tool bit are abraded and cannot be normally used, the first tool bit and the second tool bit can smoothly conduct pruning work only by replacing the tool bits, and cost of pruning work is effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of tree branch pruning technology, and in particular to a tree branch pruning tool for garden construction. Background Technology

[0002] Pruning shears are a common tool for pruning trees and fruit trees. Their unique structural design allows for greater shearing force by increasing the length of the shear handle. Flowering plants grow vigorously every year, and during this process, some long old branches or diseased branches may appear. Therefore, pruning shears are needed to trim these branches to ensure the healthy growth of flowering plants.

[0003] A search revealed that Chinese Patent Publication No. CN217884522U discloses a pruning shear, relating to the field of pruning shears technology. The shears include a handle a, with a pliers a on one side, a handle b at the upper end of the handle a, and a pliers b on one side of the handle b. A hinge shaft rotatably connects the pliers a and b. An L-shaped plate is located at the upper end of the handle b, with a long groove on its lower surface. A long strip is fixedly mounted on the upper surface of the handle b. A movable rod is slidably connected inside the L-shaped plate, with a top plate fixedly mounted at one end of the movable rod. A spring is fitted onto the outer surface of the movable rod. This device allows the L-shaped plate to be secured to the handle b using the long strip and groove, and then completely fixed with a hand-tightening screw. If slippage occurs when cutting branches, the L-shaped plate and top plate effectively support the user's hand, allowing for a stable grip on the pruning shears even with significant force, thus preventing slippage and facilitating practical use.

[0004] However, in the prior art, the blade of the pruning shear is usually fixedly connected to the handle. After long-term use, the blade will wear down, making it unable to cut branches smoothly during pruning. Since the blade is fixed together and cannot be replaced, a new pruning shear needs to be replaced if normal pruning is required, which increases the cost of use. A solution is proposed to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a garden pruning tool, which aims to improve the problem that the blade of the pruning tool is usually fixedly connected to the handle. After long-term use, the blade will wear down, making it unable to cut branches smoothly during pruning. However, since the blade is fixed together, it cannot be replaced. If normal pruning is required, a new pruning tool needs to be replaced, which increases the cost of use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: It includes a first connecting member, a second connecting member rotatably connected to one side of the first connecting member, mounting cylinders fixedly connected to one side of both the first and second connecting members, mounting blocks slidably connected inside the two mounting cylinders, mounting brackets fixedly connected to one end of each of the two mounting blocks, fasteners threadedly connected to one side of each of the two mounting brackets, one end of each fastener threadedly connected to one side of each of the two mounting blocks, a first cutting head fixedly connected to one side of one of the mounting brackets, a second cutting head fixedly connected to one side of the other mounting bracket, and reinforcing ribs fixedly connected to one side of both the first and second cutting heads.

[0007] As a further description of the above technical solution: When the blades become worn and unusable after long-term use, the fasteners on the sides of the two mounting brackets can be unscrewed, allowing the ends of the fasteners to be pulled out of the side of the mounting block. Then, the No. 1 and No. 2 blades can be pulled outwards to remove the damaged blades from the mounting cylinder. Then, the above steps are reversed and new No. 1 and No. 2 blades are replaced to complete the replacement work. In this way, when the No. 1 and No. 2 blades are worn and unusable, they can be restored to pruning work smoothly simply by replacing the blades, effectively reducing the cost of pruning work.

[0008] Preferably, a hand handle is fixedly connected to one side of both the first connector and the second connector, and protrusions are fixedly connected to both sides of the two hand handles.

[0009] As a further description of the above technical solution: the handheld lever can be gripped by the worker's hand when using a pruning shear.

[0010] Preferably, both of the two handheld handles have grip sleeves slidably connected to their outer surfaces, and both grip sleeves have grooves on their inner sides.

[0011] As a further description of the above technical solution: the grip sleeve can extend the length of the hand handle after adjustment, and the groove can make the grip sleeve more stable and smooth during adjustment and movement.

[0012] Preferably, the outer surfaces of the four protrusions are slidably connected to the interior of the four grooves, and the interiors of the two hand handles are threaded with threaded rods.

[0013] As a further description of the above technical solution: by rotating the threaded rod, the threaded rod portion stored inside the handle can be unscrewed to extend the length of the handle.

[0014] Preferably, one side of the outer surface of the two threaded rods is rotatably connected to one side of the two gripping sleeves, and a knob is fixedly connected to one end of the two threaded rods.

[0015] As a further description of the above technical solution: the rotation of the threaded rod can be controlled by turning the knob.

[0016] Preferably, a fixing block is fixedly connected to one side of one of the knobs, a connecting spring cord is fixedly connected to one side of the fixing block, and a wristband is fixedly connected to one end of the connecting spring cord.

[0017] As a further description of the above technical solution: the fixing block can be used to fix the connecting elastic cord to the grip sleeve.

[0018] Preferably, a fixing rod is fixedly connected to one side of each of the two gripping sleeves, and a rubber sleeve is fitted onto the outer surface of the two fixing rods.

[0019] As a further description of the above technical solution: the fixing rod can provide basic fixation for the worker's hand when holding the grip sleeve, so that it will not easily slip out of their hand.

[0020] Preferably, the outer surfaces of both grip sleeves are provided with anti-slip textures.

[0021] As a further description of the above technical solution: the anti-slip texture can effectively increase the friction between the hand and the grip sleeve, making the grip more stable.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. In this utility model, when the blades become worn and unusable after long-term use, the fasteners on the sides of the two mounting brackets can be unscrewed, allowing the ends of the fasteners to be pulled out of the side of the mounting block. Then, the No. 1 and No. 2 blades can be pulled outwards to remove the damaged blades from the mounting cylinder. The above steps are then reversed and new No. 1 and No. 2 blades are replaced to complete the replacement work. This method allows the No. 1 and No. 2 blades to be used smoothly again simply by replacing the blades when they are worn and unusable, effectively reducing the cost of pruning work.

[0024] 2. In this utility model, when it is necessary to extend the length of the hand handle, the knob can be rotated. The rotating knob can drive the threaded rod to rotate. After the threaded rod rotates, the threaded rod part stored inside the hand handle can be rotated out. Then, the grip sleeve can be moved to one end of the hand handle, which can effectively increase the length of the hand handle, making the device more adaptable to different pruning needs. At the same time, a connecting spring rope is provided at one end of one of the grip sleeves. The wristband on the connecting spring rope can be worn on the worker's wrist. When the worker uses the pruner, the pruner will not be accidentally dropped and fall to the ground, causing the blade to be damaged. This further extends the service life of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of a garden pruning tool proposed in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the hand handle and mounting cylinder of a garden pruning tool proposed in this utility model.

[0027] Figure 3 This is a three-dimensional structural diagram of the first and second blades of a garden pruning tool proposed in this utility model.

[0028] Figure 4 This is a three-dimensional structural cross-sectional view of the gripping sleeve portion of a garden pruning tool proposed in this utility model;

[0029] Figure 5 This is a three-dimensional structural cross-sectional view of the gripping sleeve part in a garden pruning tool proposed in this utility model.

[0030] Legend:

[0031] 1. Connector No. 1; 2. Handheld lever; 3. Mounting cylinder; 4. Cutting head No. 1; 5. Cutting head No. 2; 6. Fastener; 7. Mounting bracket; 8. Grip sleeve; 9. Anti-slip texture; 10. Rubber sleeve; 11. Fixing rod; 12. Knob; 13. Connecting spring rope; 14. Wristband; 15. Connector No. 2; 16. Protrusion; 17. Reinforcing rib; 18. Mounting block; 19. Threaded rod; 20. Fixing block; 21. Groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3As shown, one embodiment of this utility model includes a first connector 1, a second connector 15 rotatably connected to one side of the first connector 1, mounting cylinders 3 fixedly connected to one side of both the first connector 1 and the second connector 15, mounting blocks 18 slidably connected inside the two mounting cylinders 3, mounting brackets 7 fixedly connected to one end of each of the two mounting blocks 18, fasteners 6 threadedly connected to one side of each of the two mounting brackets 7, and one end of each of the two fasteners 6 threadedly connected to one side of each of the two mounting blocks 18, a first cutter head 4 fixedly connected to one side of one of the mounting brackets 7, a second cutter head 5 fixedly connected to one side of the other mounting bracket 7, and reinforcing ribs 17 fixedly connected to one side of both the first cutter head 4 and the second cutter head 5.

[0034] In this embodiment, when the blades become worn and unusable after long-term use, the fasteners 6 on the sides of the two mounting brackets 7 can be unscrewed, allowing the ends of the fasteners 6 to be pulled out of the side of the mounting block 18. Then, the first blade 4 and the second blade 5 can be pulled outward to remove the damaged blades from the mounting cylinder 3. The above steps are then reversed and new first blade 4 and second blade 5 are replaced to complete the replacement work. This method allows the first blade 4 and the second blade 5 to be used smoothly again when worn and unusable, simply by replacing the blades, effectively reducing the cost of pruning work.

[0035] Example 2, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a handrail 2 is fixedly connected to one side of connector 1 and connector 15. A protrusion 16 is fixedly connected to both sides of the two handrails 2. A grip sleeve 8 is slidably connected to the outer surface of the two handrails 2. A groove 21 is provided on both sides inside the two grip sleeves 8. The outer surface of the four protrusions 16 is slidably connected to the inside of the four grooves 21 respectively. A threaded rod 19 is threadedly connected to the inside of the two handrails 2. One side of the outer surface of the two threaded rods 19 is rotatably connected to one side of the two grip sleeves 8 respectively. A knob 12 is fixedly connected to one end of the two threaded rods 19. A fixing block 20 is fixedly connected to one side of one knob 12. A connecting spring rope 13 is fixedly connected to one side of the fixing block 20. A wristband 14 is fixedly connected to one end of the connecting spring rope 13. A fixing rod 11 is fixedly connected to one side of the two grip sleeves 8. A rubber sleeve 10 is fitted onto the outer surface of the two fixing rods 11. Anti-slip texture 9 is provided on the outer surface of the two grip sleeves 8.

[0036] In this embodiment, when it is necessary to extend the length of the handheld lever 2, the knob 12 can be rotated. The rotating knob 12 can drive the threaded rod 19 to rotate. After the threaded rod 19 rotates, the part of the threaded rod 19 stored inside the handheld lever 2 can be rotated out. Then, the gripping sleeve 8 can be moved to one end of the handheld lever 2. At this time, the length of the handheld lever 2 can be effectively increased, making the device more adaptable to different pruning needs. At the same time, a connecting spring rope 13 is provided at one end of one of the gripping sleeves 8. The wristband 14 on the connecting spring rope 13 can be worn on the worker's wrist. When the worker uses the pruner, the pruner will not be accidentally dropped and fall to the ground, causing the blade to be damaged. This further extends the service life of the device.

[0037] Working principle: When the cutter head becomes worn and unusable after long-term use, the fasteners 6 on the sides of the two mounting brackets 7 can be unscrewed, allowing the ends of the fasteners 6 to be pulled out from the side of the mounting block 18. Then, pull outwards the first cutter head 4 and the second cutter head 5 to remove the damaged cutter head from the mounting cylinder 3. Then, reverse the above steps and replace the first cutter head 4 and the second cutter head 5 to complete the replacement. When it is necessary to extend the length of the hand handle 2, the knob 12 can be rotated. The rotation of the knob 12 will drive the threaded rod 19 to rotate. After the threaded rod 19 is rotated, the threaded rod 19 part stored inside the hand handle 2 can be rotated out. Then the grip sleeve 8 can be moved to one end of the hand handle 2, which can effectively increase the length of the hand handle 2, making the device more adaptable to different pruning needs. At the same time, a connecting spring rope 13 is provided at one end of one of the grip sleeves 8. The wristband 14 on the connecting spring rope 13 can be worn on the worker's wrist. When the worker uses the pruner, the pruner will not be accidentally dropped and fall to the ground, causing the blade to be damaged.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A garden pruning tool, comprising a first connector (1), characterized in that: A second connector (15) is rotatably connected to one side of the first connector (1). A mounting cylinder (3) is fixedly connected to one side of both the first connector (1) and the second connector (15). A mounting block (18) is slidably connected inside both mounting cylinders (3). A mounting bracket (7) is fixedly connected to one end of both mounting blocks (18). A fastener (6) is threaded to one side of both mounting brackets (7). One end of the two fasteners (6) is threaded to one side of each of the two mounting blocks (18). A first cutter head (4) is fixedly connected to one side of one of the mounting brackets (7). A second cutter head (5) is fixedly connected to one side of the other mounting bracket (7). A reinforcing rib (17) is fixedly connected to one side of both the first cutter head (4) and the second cutter head (5).

2. The garden pruning tool according to claim 1, characterized in that: One side of each of the first connector (1) and the second connector (15) is fixedly connected to a hand handle (2), and both sides of the two hand handles (2) are fixedly connected to protrusions (16).

3. A garden pruning tool according to claim 2, characterized in that: Both of the handheld levers (2) have grip sleeves (8) slidably connected to their outer surfaces, and both sides of the grip sleeves (8) have grooves (21) inside.

4. A garden pruning tool according to claim 3, characterized in that: The outer surfaces of the four protrusions (16) are slidably connected to the interior of the four grooves (21), and the interiors of the two hand handles (2) are threaded with threaded rods (19).

5. A garden pruning tool according to claim 4, characterized in that: One side of the outer surface of the two threaded rods (19) is rotatably connected to one side of the two gripping sleeves (8), and a knob (12) is fixedly connected to one end of the two threaded rods (19).

6. A garden pruning tool according to claim 5, characterized in that: One of the knobs (12) is fixedly connected to a fixing block (20) on one side, and a connecting spring rope (13) is fixedly connected to one side of the fixing block (20), and a wristband (14) is fixedly connected to one end of the connecting spring rope (13).

7. A garden pruning tool according to claim 3, characterized in that: Each of the two gripping sleeves (8) is fixedly connected to one side of a fixing rod (11), and the outer surface of the two fixing rods (11) is fitted with a rubber sleeve (10).

8. A garden pruning tool according to claim 7, characterized in that: The outer surfaces of both grip sleeves (8) are provided with anti-slip textures (9).

Citation Information

Patent Citations

  • Pruning device

    CN217884522U