A garden tool
Patent Information
- Application Number
- CN202522218341.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0004]然而,此类设计存在一个普遍性问题:当两杆分离并处于折叠状态时,用于保护和引导导线的非金属软管缺乏有效的约束,活动的软管会磨损其自身或内部的导线,存在短路或断路的风险
Smart Images

Figure CN224742686U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gardening tools technology, specifically to a gardening tool. Background Technology
[0002] Garden tools, such as lawn mowers, pruning saws, and chainsaws, often employ segmented or foldable pole structures for ease of operation and storage.
[0003] In existing technologies, to achieve folding and storage of the rod structure, the two connecting rods are often connected by hinges or flexible hoses. When the tool is in use, the two rods are fixed as a rigid whole by a specific locking mechanism; when storage is required, the locking is released, allowing the two rods to bend around the hinge point or the hose, thereby shortening the overall length.
[0004] However, such designs have a common problem: when the two rods are separated and in a folded state, the non-metallic flexible tubing used to protect and guide the wires lacks effective restraint, and the moving tubing can wear down itself or the wires inside, posing a risk of short circuits or open circuits. Summary of the Invention
[0005] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a garden tool.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A garden tool includes a first connecting rod, a second connecting rod, and a non-metallic flexible hose connected at the junction of the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are locked or separated by a fastener system. Garden tools also include a limiting system for restricting the displacement of the non-metallic hose relative to the first and second connecting rods when the first connecting rod and the second connecting rod are in a separated state.
[0007] Furthermore, the limiting system includes a first limiting member disposed at the end of the first connecting rod and a second limiting member disposed at the end of the second connecting rod, with one end of the non-metallic flexible hose fixed by the first limiting member.
[0008] Furthermore, a working head is mounted on the first connecting rod, and an operating component is mounted on the second connecting rod. The wire connecting the operating component and the working head is threaded through a non-metallic flexible tube.
[0009] Furthermore, a partition is provided inside the first limiting member, which divides the inner cavity of the first limiting member into a first limiting space and a second limiting space; Several limiting ribs are arranged circumferentially within the second limiting space. The limiting ribs and the partition together form an annular clamping area for clamping and fixing one end of the non-metallic flexible hose.
[0010] Furthermore, protrusions are provided on the end faces of the partition and the limiting ribs, and the outer surface of the non-metallic hose has a groove. The protrusions can be inserted into the groove to achieve axial limiting of the non-metallic hose.
[0011] Furthermore, the first limiting space forms part of a ventilation channel from the second connecting rod to the first connecting rod; The second limiting member includes an extension that extends into the first limiting space, and the extension and the first limiting space together form a continuous ventilation channel.
[0012] Furthermore, the fastening system includes a first fastener fixedly mounted on the first connecting rod and a second fastener movably sleeved on the second connecting rod. The second fastener is operably engaged with the first fastener to lock the first and second connecting rods into a rigid whole in the engaged position and to allow them to separate in the disengaged position.
[0013] Furthermore, the limiting system also includes a third limiting component fixedly installed on the second connecting rod; A circumferential limiting structure is provided between the first fixing member and the third limiting member; when the first connecting rod and the second connecting rod are locked by the fixing member system, the circumferential limiting structure is suitable for preventing the first connecting rod and the second connecting rod from rotating relative to each other.
[0014] Furthermore, the circumferential limiting structure includes a positioning groove disposed on one of the first fixing member and the third limiting member, and a protrusion disposed on the other and cooperating with the positioning groove.
[0015] Furthermore, the inner wall of the second fixing member is provided with an inwardly protruding radial protrusion, and the outer diameter of the third limiting member is greater than or equal to the inner diameter at the location of the radial protrusion, so that when the second fixing member slides away from the first fixing member, the radial protrusion forms a stop fit with the end or outer wall of the third limiting member to prevent the second fixing member from falling off the end of the second connecting rod.
[0016] Compared to existing technologies, the advantages of this invention are as follows: By setting up a dedicated limiting system, this application firmly fixes both ends of the non-metallic flexible hose axially and circumferentially, effectively preventing the hose from shifting, twisting, or loosening inside the connecting rod due to gravity or shaking during tool folding, handling, or storage. This design ensures that the internal wires are always protected, avoiding the risk of wire wear, pulling, or even breakage caused by hose movement, greatly extending the tool's service life and improving electrical safety. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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 from these drawings without creative effort.
[0018] Figure 1 This is a structural diagram of the garden tools used in this application.
[0019] Figure 2 This is an exploded diagram of the garden tools described in this application.
[0020] Figure 3 This is a schematic diagram showing the connection between the first connecting rod and the second connecting rod of this application.
[0021] Figure 4 for Figure 3 A cross-sectional schematic diagram.
[0022] Figure 5 This is a schematic diagram of the assembly of the first connecting rod and the second connecting rod of this application.
[0023] Figure 6 This is an exploded view of the first and second connecting rods of this application.
[0024] Figure 7 for Figure 4 Enlarged view of area A in the image.
[0025] Figure 8 for Figure 5 Enlarged view of area B in the image.
[0026] Figure 9 for Figure 6 Enlarged view of area C in the image.
[0027] Figure 10 This is a schematic diagram of the structure of the first limiting component of this application. Detailed Implementation
[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] Reference Figure 1 , Figure 2 , Figure 3This embodiment discloses a garden tool 100 with a foldable connecting rod structure. The garden tool 100 can quickly and reliably switch between the use state and the storage state, greatly improving the portability and space adaptability of the product while ensuring operational rigidity and stability.
[0030] The basic components of this garden tool 100 include a first connecting rod 10 and a second connecting rod 20 that are connected to each other, a working head 30 fixedly installed at the end of the first connecting rod 10 away from the connecting end, an operating component 40 fixedly installed at the end of the second connecting rod 20 away from the connecting end, and a flexible hose 50 connected at the connection position of the first connecting rod 10 and the second connecting rod 20.
[0031] In this design, the end of the garden tool equipped with the working head 30 is defined as the working end, and the end equipped with the operating component 40 is defined as the operating end. The working head 30, as the core component for performing specific gardening tasks, can be implemented in different forms, such as a lawn mower head, chainsaw head, or pruning shears head, depending on the specific task requirements. The operating component 40 typically includes a battery pack that powers the entire tool and a handle for the user to hold and control. The battery pack can be detachably mounted on the handle or integrated into the handle.
[0032] After the wire connecting the operating component 40 and the working head 30 is arranged in the internal cavity of the second connecting rod 20, it passes through the flexible hose 50 and is further guided into the internal cavity of the first connecting rod 10, finally connecting to the drive motor or control circuit of the working head 30. The flexible hose 50 not only provides a continuous passage for the wire, but more importantly, it plays a crucial role in protecting the wire at the connection point of the first connecting rod 10 and the second connecting rod 20, preventing damage to the wire due to bending or friction during tool state transitions or use.
[0033] The flexible hose 50 is preferably made of non-metallic materials, specifically corrugated hoses with good flexibility, fatigue resistance, and insulation properties, such as PVC or PE corrugated pipes, to achieve flexible bending while avoiding the risk of electrical conductivity. In the specific structure of this embodiment, a clearly defined fixing system and a limiting system are provided at the connection position of the first connecting rod 10 and the second connecting rod 20. The fixing system is mainly responsible for achieving mechanical locking and safe disengagement between the first connecting rod 10 and the second connecting rod 20; while the limiting system is mainly used to reliably limit and fix the two ends of the hose 50, and assist in achieving alignment and support between the connecting rods.
[0034] Reference Figure 4 , Figure 5 , Figure 6When the first connecting rod 10 and the second connecting rod 20 are locked together by the fastener system, the entire garden tool 100 is in a rigid and usable state. At this time, the tool has sufficient structural stability to withstand various loads during operation. When the first connecting rod 10 and the second connecting rod 20 are separated by the fastener system, they are connected only by a flexible non-metallic hose 50. At this time, the first connecting rod 10 and the second connecting rod 20 can rotate relative to each other or even fold around the axis of the hose 50, thereby significantly shortening the overall length of the garden tool 100 and making it easy to store and transport.
[0035] Furthermore, the fastening system includes a first fastener 60 fixedly mounted on the first connecting rod 10 and a second fastener 70 movably sleeved on the second connecting rod 20. The limiting system includes a first limiting member 801 mounted on the inner side of the end of the first connecting rod 10, and a second limiting member 802 and a third limiting member 803 mounted on the end of the second connecting rod 20.
[0036] Reference Figure 7 , Figure 8 , Figure 9In a preferred embodiment of this invention, the first connecting rod 10 is designed as an outer rod, and the second connecting rod 20 is designed as an inner rod. The outer diameter of the inner rod is slightly smaller than the inner diameter of the outer rod, allowing the second connecting rod 20 to be inserted into the first connecting rod 10 and slide in a sliding fit. A first fixing member 60 and a first limiting member 801 are correspondingly installed at the ends where the first connecting rod 10 connects to the second connecting rod 20. An outwardly protruding positioning post 601 is provided on the inner wall of the first fixing member 60. This positioning post 601 passes through a pre-drilled through hole 101 in the wall of the first connecting rod 10, and is positioned and supported on the outer wall surface of the first connecting rod 10. The first fixing member 60 and the first connecting rod 10 are clamped together by a fastener 602 to ensure that they do not loosen or rotate relative to each other during tool use. The fastener 602 is preferably a bolt, but screws, rivets, or other equivalent fastening elements can also be used. To facilitate assembly and ensure uniform clamping force, the first fixing member 60 in this embodiment is composed of two symmetrically structured clamping plate units 60a. Each clamping plate unit 60a has a positioning post 601 machined on its inner side. During assembly, the two clamping plate units 60a are brought together from both sides of the first connecting rod 10, so that the positioning posts 601 on their inner sides pass through the corresponding through holes 101 on the first connecting rod 10. Then, fasteners 602 (such as bolts) are used to firmly connect the two clamping plate units 60a together, thereby tightly fixing the first fixing member 60 to the end of the first connecting rod 10. Furthermore, the first fixing member 60 is also designed with a threaded connection part 603, which is used to engage with the internal thread of the second fixing member 70, achieving locking of the two rods through a tightening action. The first limiting member 801 is mainly disposed in the internal cavity of the first connecting rod 10. Its outer wall has an outwardly protruding first protrusion 801a, while the inner wall of the first connecting rod 10 has a first positioning hole 102 that matches the shape and position of the first protrusion 801a. The first limiting member 801 achieves circumferential and axial positioning within the first connecting rod 10 by inserting its first protrusion 801a into the first positioning hole 102. Preferably, the first limiting member 801 itself adopts a symmetrical two-part structure. These two parts are connected by insertion, snap-fit, or screws to form a whole, and together they are supported inside the first connecting rod 10.
[0037] Reference Figure 10The first limiting member 801 has an internal partition 801b that divides its interior into two independent functional spaces: a first limiting space 801c and a second limiting space 801d. The first limiting space 801c primarily serves a ventilation function, allowing airflow to enter from the operating component 40 at the operating end (especially through the air inlet located at the battery pack or handle), flow sequentially through the interior of the second connecting rod 20, the first limiting space 801c, and the interior of the first connecting rod 10, and finally exit from the air outlet near the working head 30 at the working end, thereby achieving heat dissipation and cooling of the internal components of the tool. The second limiting space 801d is specifically used for installing and securing one end of the non-metallic flexible hose 50. Inside the second limiting space 801d, several limiting ribs 801e are arranged circumferentially. These limiting ribs 801e work together with the central partition 801b to form an annular snap-fit area for snapping and fixing the end of the non-metallic hose 50 within the second limiting space 801d. To enhance the reliability of the fixation and prevent the non-metallic hose 50 from dislodging or shifting during tool state switching or vibration, inwardly protruding protrusions 801f are also provided on the end faces of the partition 801b and the limiting ribs 801e. The outer surface of the non-metallic hose 50 typically has regular annular grooves 501. When installing the hose 50, these protrusions 801f can precisely snap into the annular grooves 501 on the surface of the hose 50, forming an effective axial limit, thereby achieving a firm fixation of the end of the hose 50 within the second limiting space 801d. Meanwhile, a certain gap is left between each limiting rib 801e, which not only facilitates observation and alignment during assembly, but also increases the flow area for ventilation and reduces airflow resistance. This design ensures that the non-metallic flexible hose 50 is stably fixed within the first limiting member 801 regardless of whether the garden tool 100 is in use or stored, preventing accidental movement of the non-metallic flexible hose 50 during state switching. This ensures that the wires are not exposed outside the first connecting rod 10 and the second connecting rod 20 in the stored state, thus receiving continuous protection.
[0038] At the end of the second connecting rod 20 that connects to the first connecting rod 10, a second fixing member 70, a second limiting member 802, and a third limiting member 803 are correspondingly installed. The third limiting member 803 has a through hole 803a and a third protrusion 803b. After the through hole 803a is aligned with the corresponding through hole on the wall of the second connecting rod 20, the third limiting member 803 and the second connecting rod 20 are fixedly connected by inserting a fastener 201 (such as a screw or pin). It should be noted that in this embodiment, the through holes 803a are symmetrically arranged on the third limiting member 803. This symmetrical layout design ensures that the clamping force borne by the third limiting member 803 is evenly distributed during the locking process of the fastener 201, avoiding warping or loosening that may occur due to unilateral force.
[0039] In some embodiments, the installed fastener 201 can also extend into the second connecting rod 20 to fix the end of the non-metallic hose 50.
[0040] Correspondingly, a positioning groove 604 matching the number and shape of the third protrusion 803b is machined on the threaded connection portion 603 of the first fixing member 60. The second fixing member 70 is sleeved on the second connecting rod 20 in a manner that allows axial sliding but prevents detachment, and its inner wall is machined with internal threads. The inner wall of the second fixing member 70 is provided with an inwardly protruding radial protrusion 70a, and the outer diameter of the third limiting member 803 is designed to be greater than or equal to the inner diameter of the radial protrusion 70a, thereby forming a mechanical stop structure to effectively prevent the second fixing member 70 from accidentally falling off the end of the second connecting rod 20. When it is necessary to lock the first connecting rod 10 and the second connecting rod 20, the second fixing member 70 is pushed forward, so that the thread on its inner wall engages with the external thread on the threaded connection portion 603 of the first fixing member 60, and the two rods can be fixed by tightening. During this process, the third limiting member 803 plays an axial limiting role for the second fixing member 70, preventing it from sliding excessively backward.
[0041] The second limiting member 802 comprises a cylindrical main body 802a and an extension 802b extending inward from one end of the main body 802a. During installation, the second limiting member 802 is directly sleeved onto the end of the second connecting rod 20. The main body 802a covers the outer side and end face of the second connecting rod 20, while the extension 802b is located at the end of the second connecting rod 20 and partially extends into the inner wall of the second connecting rod 20. On the inner wall of the other end of the main body 802a opposite to the extension 802b, an inwardly protruding second protrusion 802c is provided. This second protrusion 802c cooperates with a through hole 202 opened in the tube wall of the second connecting rod 20, achieving precise positioning and fixation of the second limiting member 802 on the second connecting rod 20. To facilitate users in accurately and quickly switching tools from the storage state to the use state, a first assembly mark 605 is provided on the outer surface of the first fixing member 60, and a second assembly mark 802d is provided on the outer surface of the second limiting member 802. During assembly, the second assembly mark 802d on the second limiting member 802 needs to be aligned with the first assembly mark 605 on the first fixing member 60. This alignment ensures that the extension 802b of the second limiting member 802 accurately corresponds to the first limiting space 801c on the first limiting member 801. Next, the end of the second connecting rod 20 with the second limiting member 802 is axially inserted into the first fixing member 60 and the first connecting rod 10. During this insertion process, the end of the main body 802a of the second limiting member 802 eventually abuts against the corresponding end face of the first limiting member 801. This structural design provides a physical limit to the insertion depth of the second connecting rod 20, preventing over-insertion. Finally, the second fixing member 70 is rotated to tighten it with the threaded connection portion 603 of the first fixing member 60, thereby finally achieving a secure lock between the first connecting rod 10 and the second connecting rod 20. After the first fixing member 60 and the second fixing member 70 are tightened together, the threaded connection portion 603 of the first fixing member 60 will cover the outside of the main body portion 802a of the second limiting member 802. This covering structure further enhances the rigidity and stability of the connection part. When the tool is in the fully usable state, the extension portion 802b of the second limiting member 802 is located inside the first limiting space 801c of the first limiting member 801. Since both are hollow structures, they together form a continuous ventilation channel, ensuring smooth airflow for cooling. At the same time, the matching relationship between the extension portion 802b and the first limiting space 801c also serves as a foolproof design, ensuring that when the tool is switched to the usable state, the working end and the operating end are in the correct relative positions, meeting the requirements of the tool's normal working state.After the first connecting rod 10 and the second connecting rod 20 are locked and fixed, the first limiting member 801 and the second limiting member 802 are supported together within the fitting gap between the first connecting rod 10 and the second connecting rod 20. They not only play a role in ventilation and airflow guidance, but the first limiting member 801 also undertakes the task of fixing one end of the non-metallic hose 50. At the same time, the third protrusion 803b on the third limiting member 803 will fit precisely into the positioning groove 604 on the end face of the threaded connection portion 603 of the first fixing member 60, forming a circumferential limiting structure. This circumferential limiting structure can play a circumferential limiting role for the first fixing member 60 and even the entire first connecting rod 10 assembly, preventing accidental relative rotation due to vibration or other reasons during tool use, and improving the reliability of the connection. To facilitate the installation of the first limiting member 801 and the second limiting member 802 and ensure that their positioning protrusions have sufficient elastic deformation capacity to smoothly engage in the positioning holes, small gaps 801g are provided on both sides of the first protrusion 801a of the first limiting member 801. Similarly, similar gaps 802e are provided on both sides of the second protrusion 802c of the second limiting member 802. These gaps provide the necessary deformation space, allowing the protrusions to undergo slight elastic deformation when compressed during installation, thus smoothly sliding into the positioning holes and restoring their shape to achieve a secure lock-in after being in place.
[0042] When switching the tool from its active state to its storage state, the operation is the reverse of the assembly process described above. First, loosen the second fixing member 70 to disengage it from the threaded connection 603 of the first fixing member 60. Then, the second connecting rod 20 can be pulled out from the first connecting rod 10. At this point, the separated first connecting rod 10 and second connecting rod 20 are connected by an internal non-metallic flexible hose 50. Due to the flexibility of the hose 50, the first connecting rod 10 and second connecting rod 20 can be bent and folded relative to each other around the connection point, thereby significantly shortening the overall longitudinal dimension of the tool. This makes it easier to store in space-constrained places such as vehicle trunks and storage cabinets, greatly improving the product's portability and user experience.
[0043] In summary, when garden tool 100 needs to be put into normal operation, it must be converted from its storage state to its use state. The core objective of this conversion process is to rigidly lock the first connecting rod 10 and the second connecting rod 20, which are flexibly connected by the hose 50, into a single unit. This ensures that the tool has sufficient structural strength and stability to withstand various forces and vibrations during operation, while also guaranteeing the absolute reliability of the internal wiring connections and the smooth flow of ventilation and heat dissipation channels.
[0044] The first step in the conversion operation is alignment and initial insertion. The operator needs to hold the second connecting rod 20 and align the second assembly mark 802d on the second limiting member 802 at its end with the first assembly mark 605 on the surface of the first fixing member 60 fixed to the first connecting rod 10. This step is a crucial mistake-proofing design in the entire assembly process. By aligning the marks, it is ensured that when the second connecting rod 20 is inserted into the first connecting rod 10, the extension 802b of the second limiting member 802 on it can be precisely aligned with the first limiting space 801c of the first limiting member 801 inside the first connecting rod 10. This precise circumferential matching is the foundation for all subsequent functions, ensuring the continuity of the ventilation channel and structurally determining that the working head 30 and the operating component 40 will ultimately be in the correct relative position as designed.
[0045] The second step is axial insertion and depth limiting. After alignment, the operator pushes the second connecting rod 20 axially toward the first connecting rod 10, allowing the end of the second connecting rod 20 to smoothly slide into the interior of the first fixing member 60 and the first connecting rod 10. During this process, the extension 802b of the second limiting member 802 smoothly enters the first limiting space 801c of the first limiting member 801. When the second connecting rod 20 is inserted to the predetermined position, the end face of the main body 802a of the second limiting member 802 will mechanically contact and abut against the corresponding end face of the first limiting member 801. This abutment structure provides a hard stop for the insertion stroke of the second connecting rod 20, realizing automatic limiting of the insertion depth. This not only prevents squeezing damage to the internal hose or wire that may be caused by over-insertion, but more importantly, it enables precise axial positioning of the first connecting rod 10 and the second connecting rod 20.
[0046] The third step is threaded locking and circumferential fixation. After ensuring the insertion is in place, the operator rotates the second fixing member 70 fitted onto the second connecting rod 20. The threads on the inner wall of the second fixing member 70 will engage with the external threads on the threaded connection portion 603 of the first fixing member 60. By tightening the second fixing member 70, a strong axial locking force is generated. This locking force is transmitted through the second limiting member 802 and ultimately acts on the first limiting member 801 and the first connecting rod 10, thereby firmly fixing the first connecting rod 10 and the second connecting rod 20 together. In this locked state, the threaded connection portion 603 of the first fixing member 60 will completely cover the outer side of the main body portion 802a of the second limiting member 802, forming an additional reinforcing structure. At the same time, the third protrusion 803b on the third limiting member 803 located at the end of the second connecting rod 20 will automatically embed into the positioning groove 604 on the end face of the threaded connection portion 603 of the first fixing member 60 during the locking process. This ingenious design achieves circumferential limiting, effectively preventing accidental relative rotation between the first connecting rod 10 and the second connecting rod 20 due to tool vibration or torque reaction force during use, greatly enhancing the rigidity and reliability of the connection part.
[0047] In use, the entire connection system forms a robust and stable rigid rod. One end of the internal non-metallic flexible hose 50 is firmly fixed by the limiting rib 801e and protrusion 801f within the second limiting space 801d of the first limiting member 801, remaining in a relaxed state free from tension and serving only as a protective channel for the conductors. The ventilation system is also fully open: cooling airflow enters from the air inlet at the operating component 40, flows through the interior of the second connecting rod 20, the hollow channel in the extension 802b of the second limiting member 802, and the first limiting space 801c of the first limiting member 801, finally entering the interior of the first connecting rod 10 and flowing towards the working head 30 area, effectively dissipating heat from heat-generating components such as the motor.
[0048] It should be noted that in some embodiments, the non-metallic hose 50 can also be fixed at both ends. Specifically, the two ends of the non-metallic hose 50 are firmly fixed by the limiting rib 801e and protrusion 801f in the second limiting space 801d of the first limiting member 801, and by the corresponding structure inside the second connecting rod 20 (such as fastener 201).
[0049] Furthermore, when garden tools are no longer in use and need to be stored or transported, they must be converted from their usable state to a stored state. The core principle of this process is to release the rigid connection between the first connecting rod 10 and the second connecting rod 20, and use the flexible hose 50 as a hinge and connecting link to allow the two rods to bend relative to each other, thereby significantly shortening the overall length of the tool.
[0050] The first step in the conversion operation is to release the lock. The operator rotates the second fixing member 70 in the opposite direction, completely disengaging the threads on its inner wall from the threaded connection 603 of the first fixing member 60. This loosening action releases the axial locking force applied between the two rods. As the second fixing member 70 retracts, the third protrusion 803b on the third limiting member 803 also disengages from the positioning groove 604 of the first fixing member 60, releasing the circumferential limiting.
[0051] The second step is axial separation. After the locking force is released, the operator can smoothly pull the second connecting rod 20 out of the first connecting rod 10. During the pulling process, due to the alignment of the markings during previous assembly, the extension 802b of the second limiting member 802 can smoothly and without interference exit from the first limiting space 801c of the first limiting member 801. The two rods separate axially until they are completely detached.
[0052] In its stowed state, the first connecting rod 10 and the second connecting rod 20 are no longer rigidly connected, but are physically connected through a non-metallic flexible hose 50. One end of the non-metallic flexible hose 50 is fixed to the first limiting member 801 inside the first connecting rod 10, and the other end is fixed to the corresponding structure inside the second connecting rod 20. Because the non-metallic flexible hose 50 is made of flexible corrugated material, it has good bending performance and a certain degree of torsional adaptability. Therefore, the first connecting rod 10 and the second connecting rod 20 can be bent at large angles relative to each other around the axis of the non-metallic flexible hose 50, and can even be placed almost parallel. This characteristic allows the length of the entire garden tool to be shortened from its extended usable length to a stowed length equivalent to only the length of a single rod plus a small portion of the hose's bending radius, greatly saving storage space and making it convenient to put in a vehicle trunk, storage cabinet, or for packaging and transportation.
[0053] Throughout the entire state transition and subsequent storage process, the safety of the internal wiring is fully guaranteed. The wiring is always enclosed within a continuous protective channel formed by the second connecting rod 20, the non-metallic flexible hose 50, and the first connecting rod 10. Regardless of whether the two rods are separated or bent, the wiring is not exposed to the external environment, avoiding the risk of scratches, pulling, or abrasion. The flexibility of the non-metallic flexible hose 50 itself also ensures that it will not generate shear or excessive compression stress on the internal wiring during repeated bending. The first limiting member 801 and the second limiting member 802 firmly fix the end of the non-metallic flexible hose 50, preventing the hose from shifting or loosening after multiple state transitions, ensuring long-term reliability.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A garden tool, comprising a first connecting rod, a second connecting rod, and a non-metallic flexible hose connected at the junction of the first connecting rod and the second connecting rod, wherein the first connecting rod and the second connecting rod are locked or separated by a fastener system; characterized in that The garden tool also includes a limiting system for restricting the displacement of the non-metallic hose relative to the first and second connecting rods when the first connecting rod and the second connecting rod are in a separated state.
2. The garden tool of claim 1, wherein, The limiting component system includes a first limiting component disposed at the end of the first connecting rod and a second limiting component disposed at the end of the second connecting rod, wherein one end of the non-metallic flexible hose is fixed by the first limiting component.
3. The garden tool of claim 1, wherein, A working head is mounted on the first connecting rod, and an operating component is mounted on the second connecting rod. The wire connecting the operating component and the working head passes through the non-metallic flexible tube.
4. The garden tool of claim 2, wherein, The first limiting member has a partition inside, which divides the inner cavity of the first limiting member into a first limiting space and a second limiting space; The second limiting space is provided with a number of limiting ribs arranged in a circumferential direction. The limiting ribs and the partition together form an annular clamping area for clamping and fixing one end of the non-metallic flexible tube.
5. The garden tool of claim 4, wherein, The end faces of the partition and the limiting rib are provided with protrusions, and the outer surface of the non-metallic hose has a groove. The protrusions can be inserted into the groove to achieve axial limiting of the non-metallic hose.
6. The garden tool of claim 4, wherein, The first limiting space forms part of a ventilation channel from the second connecting rod to the first connecting rod; The second limiting member includes an extension that extends into the first limiting space, and the extension and the first limiting space together form a continuous ventilation channel.
7. The garden tool of claim 2, wherein, The fastening system includes a first fastener fixedly mounted on a first connecting rod and a second fastener movably sleeved on a second connecting rod. The second fastener is operably engaged with the first fastener to lock the first and second connecting rods into a rigid unit in the engaged position and to allow them to separate in the disengaged position.
8. The garden tool of claim 7, wherein, The limiting component system also includes a third limiting component that is fixedly installed on the second connecting rod; A circumferential limiting structure is provided between the first fixing member and the third limiting member; when the first connecting rod and the second connecting rod are locked by the fixing member system, the circumferential limiting structure is adapted to prevent the first connecting rod and the second connecting rod from rotating relative to each other.
9. The garden tool of claim 8, wherein, The circumferential limiting structure includes a positioning groove disposed on one of the first fixing member and the third limiting member, and a protrusion disposed on the other member and cooperating with the positioning groove.
10. The garden tool of claim 8, wherein, The inner wall of the second fixing member is provided with an inwardly protruding radial protrusion, and the outer diameter of the third limiting member is greater than or equal to the inner diameter at the location of the radial protrusion.