Fruit tree trimmer

Abstract

The utility model discloses a fruit tree trimmer which comprises a trimming knife, operating handles are symmetrically arranged at the bottom end of the trimming knife, a quick fixing device is arranged on the trimming knife, the quick fixing device is composed of a pair of clamping jaws and a control mechanism for controlling the clamping jaws to clamp or release the clamping jaws, and clamping grooves matched with the outlines of branches and anti-skid structures are arranged on the inner sides of the clamping jaws. The trimmer has the following advantages and effects that the trimmer solves the problem that the trimmer is easy to slip off when being temporarily stored through the fixing mechanism capable of quickly clamping branches.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit tree pruning devices, and in particular to a fruit tree pruning device. Background Technology

[0002] In the field of fruit tree cultivation, regular pruning is a key step in ensuring fruit yield and quality.

[0003] Chinese patent CN218831389U discloses a fruit tree pruner, primarily addressing the issue of adaptability to operating height through a telescopic mechanism. The patented pruner design includes an extension rod at the end of the operating handle, a sliding assembly consisting of a guide groove and a guide block, and a locking structure composed of a positioning screw and a limiting groove, enabling flexible adjustment of the operating handle length. However, in actual pruning operations, operators often need to perform other auxiliary operations during pruning, such as: handling pruned branches with both hands (requiring centralized transport or bundling); climbing ladders to adjust the working position (using both hands to hold the ladder for balance); at these times, the operator needs to temporarily release the pruner. In existing technologies, the equipment is usually hung around the operator's waist or placed on a ladder crossbar, but the former increases the body load and easily snags branches, while the latter, due to the narrow ladder surface, easily causes the pruner to slip and be damaged (especially when the ladder is placed on uneven ground). It is worth noting that the dense branches in the working area could serve as natural temporary support points, but traditional pruners lack quick-fixing devices tailored to branch shapes, rendering this convenient condition unusable.

[0004] Therefore, there is an urgent need for a fruit tree pruning device to solve the problems of safety and convenience in temporary storage of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a fruit tree pruner that solves the problem of the pruner easily slipping off during temporary storage by using a fixing mechanism that can quickly clamp branches.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fruit tree pruning device, including pruning shears, the bottom end of which is provided with an operating handle, and a quick fixing device is provided on the pruning shears. The quick fixing device includes a pair of jaws for quickly clamping or releasing branches and a control mechanism for controlling the clamping or releasing of the jaws. The inner sides of the two jaws are provided with clamping grooves adapted to the contour of the branches, and the surface of the clamping grooves is provided with an anti-slip structure.

[0007] By adopting the above technical solution, the clamp and control mechanism work together to achieve one-click clamping / release of the pruner on the branches, making dense branches a natural support point, thus fundamentally solving the safety hazards of temporary equipment storage.

[0008] The anti-slip structure is further configured such that it includes a plurality of fixing spikes arranged circumferentially around the clamping groove for fixing the branches.

[0009] By adopting the above technical solution, the fixing spikes penetrate the surface of the tree branches to form a mechanical interlock, which greatly improves the anti-slip ability and prevents the equipment from falling off due to gravity or external force.

[0010] A further feature is provided: a counterweight is provided below the operating handle.

[0011] By adopting the above technical solution, the counterweight uses gravity to enhance the overall clamping force, allowing the fixing thorn to be embedded more deeply into the thicker branches, further preventing the pruning shears from shaking.

[0012] The gripper is further configured such that: the gripper includes an upper gripper fixed to the trimmer and a lower gripper movably disposed thereon; the trimmer has a first groove for the lower gripper to slide along.

[0013] By adopting the above technical solution, the combination structure of fixed upper jaw and sliding lower jaw, together with the first sliding groove, realizes one-way release / clamping control, simplifies the operation logic and reduces manufacturing costs.

[0014] The control mechanism is further configured as follows: a pull rope, a first spring, and a control block; one end of the pull rope is fixedly connected to the lower claw, and the free end of the pull rope extends to the gripping part of the operating handle; the control block is fixedly connected to the free end of the pull rope, and the control block is used to control the lower claw to move away from the upper claw, at which time the lower claw and the upper claw are in a released state; one end of the first spring is fixedly connected to the lower claw, and the other end of the first spring is fixedly connected to the first groove; when the first spring is in a non-deformed state, the lower claw and the upper claw are in a clamping state.

[0015] By adopting the above technical solution, the pull rope + control block supports one-handed operation (the gripper can be released by flicking the control block with the fingers while holding the operating handle); the first spring realizes automatic reset clamping, and the release of the control block completes fixation instantly, improving work efficiency.

[0016] The control mechanism is further configured such that the lower and upper claws are in a clamping state, and an anti-accidental contact component is included. The anti-accidental contact component includes a locking groove, a second sliding groove, a locking block, a second spring, and a linkage rope. The locking groove is located in the lower claw, the second sliding groove is located in the first sliding groove, the locking groove and the second sliding groove are positioned correspondingly, and the locking block is slidably disposed in the second sliding groove. One end of the second spring is fixedly connected to the locking block, and the other end of the second spring is fixedly connected to the inner wall of the second sliding groove. When the second spring is in a non-deformed state, the locking block and the locking groove form a plug-in fit. One end of the linkage rope is connected to the locking block, and the other end of the linkage rope is fixedly connected to a pull rope. The pull rope controls the locking block to disengage from the locking groove through the linkage rope.

[0017] By adopting the above technical solutions, the locking block and locking groove are connected: when the gripper is holding, the lower gripper is physically locked to prevent accidental release caused by accidental contact with the control block; the linkage rope is designed to be synchronous: when the rope is pulled, the gripper is unlocked first and then opened to avoid the mechanism getting stuck and improve reliability.

[0018] The further configuration is as follows: the trimmer is equipped with a guide wheel, and the linkage rope is wound around the guide wheel.

[0019] By adopting the above technical solution, the guide wheel optimizes the force transmission path of the linkage rope, reduces friction loss, and ensures that the locking block responds sensitively.

[0020] The tool is further configured such that the trimmer has several guide rings, and the pull rope is sequentially threaded through each guide ring.

[0021] By adopting the above technical solution, the guide ring positions the pull rope at multiple points to prevent the pull rope from getting tangled with the trimmer components and ensure a smooth release action. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0023] Figure 2 This is an example. Figure 1 Enlarged view at point A in the middle;

[0024] Figure 3 This is an example. Figure 1 Enlarged view at point B;

[0025] In the diagram: 1. Trimming shears; 2. Operating handle; 11. Gripper; 111. Grip groove; 112. Fixing spike; 12. Counterweight; 113. Upper gripper; 114. Lower gripper; 13. First slide groove; 3. Pull rope; 4. First spring; 31. Control block; 51. Locking groove; 52. Second slide groove; 53. Locking block; 54. Second spring; 55. Linkage rope; 7. Guide wheel; 8. Guide ring; Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 3 A fruit tree pruning device includes pruning shears 1, which is forged from high carbon steel. The bottom end of the pruning shears 1 is symmetrically welded with operating handles 2, which are hollow steel pipes. The pruning shears 1 is equipped with a quick-fixing device, which includes a pair of grippers 11 for quickly clamping or releasing branches and a control mechanism for controlling the clamping or releasing of the grippers 11. The inner sides of the two grippers 11 are provided with clamping grooves 111 that are adapted to the contour of the branches, and the surface of the clamping grooves 111 is provided with an anti-slip structure.

[0028] The anti-slip structure includes several fixing spikes 112 circumferentially fixed around the clamping groove 111 for securing branches. The length of the fixing spikes is ≤2mm, and they only penetrate the surface of the bark. A counterweight block 12 is provided below the operating handle 2. The gripper 11 includes an upper gripper 113 bolted to the trimmer 1 and a lower gripper 114 movably disposed thereon. The trimmer 1 has a first sliding groove 13 along its length, which allows the lower gripper 114 to slide.

[0029] The control mechanism includes a pull rope 3, a first spring 4, and a control block 31. One end of the pull rope 3 is fixedly connected to the lower claw 114, and the free end of the pull rope 3 extends to the gripping part of the operating handle 2. The control block 31 is fixedly connected to the free end of the pull rope 3. The control block 31 is used to control the lower claw 114 to move away from the upper claw 113. At this time, the lower claw 114 and the upper claw 113 are in a released state. One end of the first spring 4 is fixedly connected to the lower claw 114, and the other end of the first spring 4 is fixedly connected to the first slide groove 13. When the first spring 4 is in a non-deformed state, the lower claw 114 and the upper claw 113 are in a clamping state.

[0030] The control mechanism also includes an anti-accidental contact component that keeps the lower claw 114 and the upper claw 113 in a clamping state. The anti-accidental contact component includes a locking groove 51, a second sliding groove 52, a locking block 53, a second spring 54, and a linkage rope 55. The locking groove 51 is formed in the lower claw 114, and the second sliding groove 52 is formed inside the first sliding groove 13. The locking groove 51 and the second sliding groove 52 are positioned correspondingly. The locking block 53 is slidably disposed in the second sliding groove 52, and the shapes of the locking block 53, the second sliding groove 52, and the first sliding groove 13 are adapted to each other. One end of the second spring 54 is fixedly connected to the locking block 53, and the other end of the second spring 54 is fixedly connected to the inner wall of the second sliding groove 52. When the second spring 54 is in a non-deformed state, the locking block 53 and the locking groove 51 form a plug-in engagement. One end of the linkage rope 55 is connected to the locking block 53, and the other end of the linkage rope 55 is fixedly connected to the pull rope 3. The pull rope 3 controls the locking block 53 to disengage from the locking groove 51 through the linkage rope 55.

[0031] A guide wheel 7 is fixedly installed on the scissors 1, and a linkage rope 55 is wound around the guide wheel 7. Three guide rings 8 are provided on the scissors 1, and each guide ring 8 is located at the junction of the scissors 1 and the operating handle 2. A pull rope 3 is threaded through each guide ring 8.

[0032] Overall workflow: When the operator holds the operating handle 2, the thumb moves the control block 31 downwards → the pull rope 3 pulls the lower claw 114 down along the first slide groove 13 (compressing the first spring 4) → the linkage rope 55 simultaneously pulls the locking block 53 out of the locking groove 51 → the gripper 11 is released → after the clamping groove 111 is inserted into the branch, the control block 31 is released → the first spring 4 pushes the lower claw 114 back to clamp → the fixing spike 112 pierces the bark, and at the same time, the locking block 53 is inserted into the locking groove 51 under the action of the second spring 54 to complete the mechanical locking. For disassembly, the control block 31 is moved again to unlock first and then open the claw, achieving quick release with one hand.

[0033] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A fruit tree pruning device, comprising pruning shears (1), wherein the bottom end of the pruning shears (1) is provided with an operating handle (2), characterized in that: The trimmer (1) is equipped with a quick-fixing device, which includes a pair of grippers (11) for quickly clamping or releasing branches and a control mechanism for controlling the grippers (11) to clamp or release. The inner sides of the two grippers (11) are provided with clamping grooves (111) adapted to the outline of the branches, and the surface of the clamping grooves (111) is provided with an anti-slip structure.

2. The fruit tree pruning device according to claim 1, characterized in that: The anti-slip structure includes a plurality of fixing spikes (112) arranged circumferentially around the clamping groove (111) for fixing branches.

3. A fruit tree pruning device according to claim 1, characterized in that: A counterweight (12) is provided below the operating handle (2).

4. A fruit tree pruning device according to claim 1, characterized in that: The gripper (11) includes an upper gripper (113) fixed to the trimmer (1) and a lower gripper (114) movably disposed thereon. The trimmer (1) has a first groove (13) for the lower gripper (114) to slide.

5. A fruit tree pruning device according to claim 1, characterized in that: The control mechanism includes a pull rope (3), a first spring (4), and a control block (31); one end of the pull rope (3) is fixedly connected to the lower claw (114), the free end of the pull rope (3) extends to the gripping part of the operating handle (2), the control block (31) is fixedly connected to the free end of the pull rope (3), and the control block (31) is used to control the lower claw (114) to move away from the upper claw (113). At this time, the lower claw (114) and the upper claw (113) are in a released state; one end of the first spring (4) is fixedly connected to the lower claw (114), and the other end of the first spring (4) is fixedly connected to the first slide groove (13). When the first spring (4) is in a non-deformed state, the lower claw (114) and the upper claw (113) are in a clamping state.

6. A fruit tree pruning device according to claim 1, characterized in that: The control mechanism further includes an anti-accidental contact component that keeps the lower claw (114) and upper claw (113) in a clamping state. The anti-accidental contact component includes a locking groove (51), a second sliding groove (52), a locking block (53), a second spring (54), and a linkage rope (55). The locking groove (51) is formed in the lower claw (114), the second sliding groove (52) is formed in the first sliding groove (13), the locking groove (51) and the second sliding groove (52) are positioned correspondingly, and the locking block (53) is slidably disposed in the second sliding groove (52). The second spring (54) is fixedly connected to the locking block (53) at one end and to the inner wall of the second slide groove (52) at the other end. When the second spring (54) is in a non-deformed state, the locking block (53) and the locking groove (51) form a plug-in fit. The linkage rope (55) is connected to the locking block (53) at one end and to the pull rope (3) at the other end. The pull rope (3) controls the locking block (53) to disengage from the locking groove (51) through the linkage rope (55).

7. A fruit tree pruning device according to claim 6, characterized in that: The trimmer (1) is equipped with a guide wheel (7), and the linkage rope (55) is wound around the guide wheel (7).

8. A fruit tree pruning device according to claim 5, characterized in that: The trimmer (1) is provided with several guide rings (8), and the pull rope (3) is sequentially threaded through each guide ring (8).

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