Handle mounting structure and garden tool

Abstract

The utility model discloses a handle mounting structure and garden tool, wherein, handle mounting structure includes handle and connecting rod, and the handle inside is formed with the passageway that passes through before and after for the connecting rod to pass through, is equipped with the limiting piece in the passageway, and the limiting piece is sleeved in the outside of connecting rod and can be operated to exert radial clamping force to connecting rod, realizes the circumferential fixation of handle and connecting rod. The limiting piece includes fixed sleeve and hoop, and the fixed sleeve periphery is equipped with annular limiting rib, and the hoop is clamped between the limiting rib and is connected with handle shell through fastener, and the fastener can be driven to force the fixed sleeve radial deformation by screwing or unscrewing, thereby locking or loosening the connecting rod. The structure contains the fastener in the handle interior, prevents it from falling off through the limiting hole, effectively avoids the rust and damage. The utility model directly exerts radial locking force to the connecting rod, solves the power transmission loss and the problem of loosening caused by traditional indirect clamping, improves the installation stability, operation reliability and maintenance convenience.

Description

Technical Field

[0001] This application relates to the field of garden equipment, and in particular to a handle mounting structure and garden tools. Background Technology

[0002] In current garden tool designs, a common handle mounting method involves creating a through-channel in the middle of the handle, through which the connecting rod passes, and then securing the left and right housings of the handle with bolts, nuts, or other fasteners. The connecting rod is indirectly fixed by the clamping action of the housings. However, this structure has several drawbacks in practical use: First, because the fastening force is applied only to the handle housing and not directly to the connecting rod, the clamping force transmission path is indirect and easily weakens due to material creep, vibration, or external impact. With prolonged use, clamping reliability decreases, leading to loosening or even relative displacement between the handle and the connecting rod, affecting operational stability and user experience.

[0003] Secondly, the installation and disassembly of this structure are also inconvenient. When adjusting the position of the handle, the fasteners must be completely loosened. However, the bolts and nuts exposed outside the housing lack effective restraint and are easy to fall off and be lost during disassembly, increasing the difficulty of assembly. Moreover, the fasteners are basically exposed outside the machine and are easily affected by the external environment. They are prone to rust or damage, causing rotation jamming and making disassembly and installation difficult. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the prior art and provide a handle locking structure and a garden blower.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A handle mounting structure includes a handle and a connecting rod, wherein a through channel is formed inside the handle for the rod body of the connecting rod to pass through. The handle is equipped with a limiting component inside. The limiting component is sleeved on the outside of the rod and can operate to apply a radial clamping force to the rod to achieve circumferential fixation between the handle and the connecting rod.

[0006] Furthermore, the handle includes a detachably connected left handle housing and a right handle housing, and the channel is formed by the left handle housing and the right handle housing together.

[0007] Furthermore, there are two limiting components, which are arranged at intervals at both ends of the channel.

[0008] Furthermore, the limiting component includes a fixing sleeve and a clamp, and the outer circumferential surface of the fixing sleeve is provided with several limiting ribs; The clamp is embedded in the limiting space formed by two adjacent limiting ribs, and the clamp has a first extension and a second extension. The first extension and the second extension are fixedly connected to the handle by a fastener.

[0009] Furthermore, tightening or loosening the fasteners can drive the first extension and the second extension closer or further apart, thereby forcing the retaining sleeve to undergo radial deformation through the clamp to lock or loosen the rod.

[0010] Furthermore, a limiting hole is provided on the left or right housing of the handle at the position of the corresponding fastener head; The size of the limiting hole is configured to allow tools to pass through to operate the fastener, while restricting the fastener from coming out of the left or right housing of the handle when released.

[0011] Furthermore, the inner wall of the left and / or right housing of the handle has a mounting groove formed at the mounting position of the limiting member, and the limiting member is accommodated in the mounting groove.

[0012] Furthermore, the inner wall of the mounting groove has a blocking rib extending towards the limiting member. The blocking rib engages with the limiting rib on the fixing sleeve to restrict the limiting member from rotating or moving axially within the mounting groove.

[0013] Furthermore, the fixing sleeve is made of engineering plastic, and the clamp is made of metal.

[0014] Furthermore, the retaining sleeve has an opening configured to allow radial deformation of the retaining sleeve when subjected to force.

[0015] Furthermore, the handle is also equipped with a wiring harness for electrical connection, and the inner walls of the left and / or right housings of the handle are formed with wire-holding grooves for neatly fixing the wiring harness.

[0016] Compared to existing technologies, the advantages of this application are as follows: By incorporating a limiting component inside the handle that can directly apply radial clamping force to the connecting rod, this application fundamentally solves the problem of force transmission loss caused by indirectly clamping the rod by squeezing the shell in traditional structures. The limiting component acts directly on the surface of the rod, providing a stable and concentrated radial locking force, effectively preventing loosening and shaking that may occur between the handle and the connecting rod during long-term use or when subjected to external impact.

[0017] Meanwhile, this mounting structure houses the critical fasteners inside the handle housing, optimizing the integrity of the external structure. The fasteners are no longer fully exposed to the external environment, reducing the risk of rust and jamming due to rain and dust. Furthermore, the limiting hole design on the housing provides necessary operating channels while preventing the fasteners from completely falling off or being lost during loosening, greatly improving the convenience of installation, debugging, and maintenance.

[0018] Another technical solution adopted in this application is to provide a garden tool, including the above-mentioned handle mounting structure.

[0019] The garden tools provided in this application, due to the configuration of the aforementioned handle mounting structure, possess the technical effects of the aforementioned handle mounting structure. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a structural schematic diagram of the pole-type garden tool of this application.

[0022] Figure 2 This is a side view of the pole-type garden tool of this application.

[0023] Figure 3 for Figure 2 A schematic diagram of the longitudinal section.

[0024] Figure 4 This is a schematic diagram of the power assembly of this application.

[0025] Figure 5 This is a schematic diagram of the internal structure and heat dissipation of the power component of this application.

[0026] Figure 6 for Figure 5 Another structural diagram from another angle.

[0027] Figure 7 This is a schematic diagram of the battery pack installation of the power assembly in this application.

[0028] Figure 8 This is a top view of the power assembly of this application.

[0029] Figure 9 for Figure 8 A schematic diagram of the cross section along line BB.

[0030] Figure 10 This is a side view of the power assembly of this application.

[0031] Figure 11 for Figure 10 A schematic diagram of the cross section along the CC line.

[0032] Figure 12 This is a schematic diagram of the assembly of the motor housing and the support plate in this application.

[0033] Figure 13 for Figure 12 Another structural diagram from another angle.

[0034] Figure 14 for Figure 3 Enlarged view of area A in the image.

[0035] Figure 15 This is a partial schematic diagram of the conversion component of this application.

[0036] Figure 16 This is a schematic diagram showing the connection between the linkage of the conversion component and the tool shaft in this embodiment, which uses a splined shaft interface.

[0037] Figure 17 This is a schematic diagram of the connection between the linkage and the tool axis in another embodiment, which adopts a square shaft interface.

[0038] Figure 18 This is a schematic diagram of the connection between the linkage and the tool shaft in another embodiment, which uses a threaded shaft interface.

[0039] Figure 19 This is a partial structural diagram of the pole-type garden tool of this application.

[0040] Figure 20 for Figure 19 A front view illustration.

[0041] Figure 21 for Figure 19 A schematic diagram of the middle handle assembly.

[0042] Figure 22 for Figure 20 A schematic diagram of the cross section along the DD line.

[0043] Figure 23 for Figure 21 A schematic diagram of the middle limiting component.

[0044] Figure 24 for Figure 21 Enlarged view of area E in the image. Detailed Implementation

[0045] 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.

[0046] Reference Figure 1 , Figure 2 , Figure 3A pole-type garden tool 100 includes a working component 10 (such as a grass trimmer) at a distal end, a connecting rod 20 for transmitting power and providing structural support, a power component 30 at a proximal end, and a handle assembly 40 mounted on the connecting rod 20, wherein the working component 10 is connected to a tool shaft 50, and the end of the tool shaft 50 is connected to the power component 30 via a conversion assembly 60.

[0047] Reference Figures 4 to 11 The power assembly 30, as the energy source and core of the entire pole-type garden tool 100, directly determines the tool's performance, reliability, and service life through its structural design. The power assembly 30 mainly includes a housing 31 serving as the main load-bearing and protective structure, a battery pack 32 providing electrical energy, a controller 33 controlling the motor's operation, and a motor 34 outputting mechanical power. The controller 33 and motor 34 are both integrated within the housing 31. The housing 31 is typically made of high-strength engineering plastic using injection molding, offering excellent insulation, lightweight construction, and molding flexibility. It is formed by detachably connecting the left and right housings along a pre-defined parting surface using multiple fasteners (such as screws). This modular design facilitates the assembly, maintenance, and replacement of internal components.

[0048] In this embodiment, both the left and right housings include a first housing 35 and a second housing 36. A support plate 37 is provided inside the housing 31. The support plate 37 is located at the connection position between the first housing 35 and the second housing 36. One side of the support plate 37 is fixedly connected to the motor housing 38 of the motor 34 by fasteners, and the other side is fixedly connected to the conversion assembly 60 by fasteners. The edge of the support plate 37 can be clamped between the corresponding slots and ribs of the first housing 35 or the second housing 36. In this embodiment, the edge of the support plate 37 is clamped between the slots or ribs of the second housing 36. The clamped and fixed support plate 37 is located between the left and right housings, becoming a stable mounting reference inside the housing 31.

[0049] Specifically, one side of the support plate 37 is rigidly fixed to the motor housing 38 by a first set of fasteners (e.g., screws 39), allowing the motor 34 to be suspended or partially embedded in one side of the support plate 37. The support plate 37 is fixedly connected to the housing 601 of the conversion component 60 (described in detail later) by a second set of fasteners (e.g., screws 310), thus forming a series rigid support frame of "motor 34, support plate 37, conversion component 60". This not only ensures the coaxiality and stability of the power transmission path, but also internalizes the main stress structure, reducing the load on the external housing.

[0050] Furthermore, after the motor 34 and motor housing 38 are securely installed as a sub-assembly inside the housing 31, the battery pack 32 is inserted from a mounting position on one side of the housing 31. This mounting position includes a groove or guide rail that matches the shape of the battery pack 32. During insertion, the operator pushes the battery pack 32 into the mounting position along the guide rail and locks it in place, securing the battery pack 32 firmly onto the housing 31 and simultaneously establishing an electrical connection. After the electrical connection is established, the battery pack 32 supplies power to the controller 33 and the motor 34.

[0051] In this embodiment, in order to effectively manage the heat generated when the tool is working, a heat dissipation channel is planned inside the power component 30 to facilitate the orderly flow of cooling air. The heat dissipation channel passes through the battery pack 32, the controller 33 and the motor 34 in sequence, forming a three-section cooling path.

[0052] Furthermore, the heat dissipation channel specifically includes: The first heat dissipation channel is located inside the battery pack 32. Cooling air enters from the air inlet 321, flows through the gap between the cells for heat exchange, and then exits from the air outlet 322. The second heat dissipation channel is located inside the housing 31 and corresponds to the controller 33. After the airflow enters from the vent 311, it flows through the heat dissipation fins 331 of the controller 33 for cooling. The third heat dissipation channel is located inside the motor assembly cavity 38c. Airflow enters the motor 34 from the first opening 38d and is finally discharged from the second opening 38e by the fan 34a.

[0053] Specifically, the battery pack 32 is modularly mounted on the housing 31 of the power assembly 30, and the battery pack 32 is provided with an air inlet 321 and an air outlet 322. Cooling airflow (ambient air) enters the battery pack 32 from the air inlet 321, flows through the gaps between the battery cells for heat exchange, and is then discharged from the air outlet 322.

[0054] Additionally, the housing 31 has a vent 311 at the location corresponding to the battery pack air outlet 322, through which airflow enters the housing. A removable filter 312 is embedded in the vent 311 to filter dust and impurities, which can be easily removed and cleaned by the user from the side of the housing 31. After the airflow enters the housing 31, it immediately enters the second heat dissipation stage for the controller 33. The controller 33 is fixed to the inner wall of one side housing (e.g., the left housing) using fasteners through its mounting holes. When the left and right housings are closed, the internal ribs, the controller 33 plate itself, and the outer wall of the motor housing 38 together define a relatively enclosed cooling cavity 200.

[0055] The controller 33 has heat dissipation fins 331 on its side, which face the cooling cavity 200. The airflow flowing into the cooling cavity 200 can efficiently wash the surface of the heat dissipation fins 331 and carry away heat. After cooling the controller 33, the airflow enters the third heat dissipation stage under the suction of the fan 34a at the tail of the motor 34.

[0056] Furthermore, refer to Figure 5 , Figure 6 , Figure 12 , Figure 13 The motor housing 38 includes a first housing portion 38a and a second housing portion 38b. The motor 34 is housed within a motor assembly cavity 38c, which is formed by the combination of the first housing portion 38a and the second housing portion 38b. During the third heat dissipation stage, airflow enters the motor 34 from the cooling cavity 200 via a first opening 38d near the motor output shaft 34b in the motor assembly cavity 38c, directly cooling the motor 34. Finally, the fan 34a forcefully blows the now-high-temperature airflow out of the motor assembly cavity 38c through a second opening 38e corresponding to the fan 34a. Simultaneously, the housing 31 of the power assembly 30 has a final airflow outlet 313 at the position corresponding to this second opening 38e, discharging the hot exhaust gas to the outside. Preferably, there are two airflow outlets 313, symmetrically distributed on both sides of the housing 31. This symmetrical layout avoids the hot airflow being concentrated towards the user's body side due to a single airflow outlet 313, thus dispersing the exhaust temperature and improving operational comfort.

[0057] To improve heat dissipation efficiency and enhance user experience, a limiting rib 314 is formed around the second opening 38e on the inner wall of the housing 31. The limiting rib 314 limits the first housing part 38a and the second housing part 38b. This limiting rib 314 creates a near-sealed connection between the second opening 38e of the motor assembly cavity 38c and the airflow outlet 313 of the housing 31, preventing hot airflow from flowing inside the housing 31. Through this integrated heat dissipation design, the entire power assembly 30 ensures that the three main heat sources—the battery pack 32, the controller 33, and the motor 34—are effectively cooled, thereby improving the performance and lifespan of the tool under continuous high-load operation.

[0058] In summary, the entire power assembly 30's cooling system is designed with an efficient and orderly cooling airflow path, sequentially passing through the battery pack 32, controller 33, and motor 34, forming a three-stage cooling system to ensure effective management of the main heat sources. First, the cooling airflow (ambient air) enters from the air inlet 321 of the battery pack 32, flows through the gaps between the battery cells inside the battery pack, undergoes preliminary heat exchange, and carries away the heat generated during battery pack 32 operation. Then, it is discharged from the air outlet 322 of the battery pack 32. The battery pack 32 is modularly mounted on the housing 31, and the design of its air inlet 321 and air outlet 322 allows for smooth airflow, achieving active cooling of the battery. Next, the airflow enters the housing through the vent 311 on the housing 31 corresponding to the battery pack air outlet 322. A removable filter 312 is embedded in the vent 311 to filter dust and impurities. Users can easily remove and clean the filter from the side of the housing, maintaining the long-term effectiveness of the cooling system.

[0059] After entering housing 31, the airflow immediately enters the second heat dissipation stage targeting the controller 33. The controller 33 is fixed to the inner wall of one side of the housing (such as the left housing) by fasteners. When the left and right housings are closed, the internal ribs, the plate of the controller 33, and the outer wall of the motor housing 38 together define a relatively enclosed cooling cavity 200. The controller 33 has heat dissipation fins 331 on its side, which face the cooling cavity 200. The incoming airflow can efficiently wash the surface of the heat dissipation fins, carrying away the heat generated by the controller's operation and achieving rapid cooling. After cooling the controller 33, the airflow enters the third heat dissipation stage under the suction of the fan 34a at the tail of the motor 34. The motor housing 38 is composed of a first housing part 38a and a second housing part 38b to form a motor assembly cavity 38c. Airflow enters the motor from the cooling cavity 200 through the first opening 38d at the end of the motor assembly cavity 38c near the motor output shaft 34b, directly cooling the motor 34. Finally, the fan 34a blows the airflow, which has become hot, out powerfully from the second opening 38e on the motor assembly cavity 38c corresponding to the fan position, ensuring that the three main heat sources, namely the battery pack 32, the controller 33 and the motor 34, can be effectively cooled under continuous high load operation.

[0060] It should be noted that the second housing part 38b also has a suspension mounting part 38f on one side. The suspension mounting part 38f can fix and limit the wire harness 400 inside the housing 31, so as to facilitate the wiring of the wire harness 400 inside the housing 31.

[0061] Furthermore, refer to Figure 14 , Figure 15The structure of the conversion assembly 60 is described in detail below. The conversion assembly 60 includes a housing 601, a linkage 602 rotatably supported within the housing 601, and necessary support members 603. To ensure the stability and concentricity of the linkage 602 during high-speed rotation and to reduce radial runout, the support member 603 employs a bearing configuration with two supports at both ends: two bearings are located at the axial ends of the linkage 602, separated by a bushing 604 with a length H greater than or equal to 10 mm. Additionally, a retaining ring 608 is installed on one side of one bearing of the support member 603. The retaining ring 608 is precisely engaged in a pre-machined groove at the end of the linkage 602 and closely abuts the outer end face of one of the bearings. The core function of the retaining ring 608 is axial positioning and safety locking. It is firmly secured in the groove by its own elastic tension, forming a reliable flange boundary, effectively preventing axial movement of the linkage 602 and its support member 603 during operation due to bidirectional forces or vibrations.

[0062] During the specific installation of the conversion component 60, one end of the linkage 602 is linked to the motor output shaft 34b through a through hole on the support plate 37 (e.g., using a spline fit or clamping mechanism), while the other end is designed with various interface forms according to the needs of the working component, such as a spline shaft, a square shaft, or a threaded shaft, to adapt to the tool shaft 50 of the working component 10 of different garden tools. The different interface forms between the linkage 602 and the tool shaft 50 are described in detail below. Figure 16 , Figure 17 , Figure 18 As shown. This modular design allows users to quickly replace the working component 10 without disassembling the entire power assembly, greatly improving operational flexibility.

[0063] In terms of installation structure, the left and right housings of the power assembly 30 adopt a split design, including a first housing 35 and a second housing 36. A support plate 37 is fixedly installed at the connection between the two housings. One side of the support plate 37 is fixedly connected to the motor housing 38 by fasteners, and the other side is also fixedly connected to the outer shell 601 of the conversion assembly 60 by fasteners. When it is necessary to replace the conversion assembly 60 or perform maintenance, simply loosen the fasteners 35a (such as screws) on the first housing 35 to remove the first housing 35 and directly expose the conversion assembly 60, simplifying the disassembly and assembly process.

[0064] Furthermore, the outer shell 601 of the conversion assembly 60 is provided with a clamping part 605, which is used to hold and fix the rod body of the connecting rod 20 to ensure a stable connection between the working assembly 10 and the power assembly 30. In order to reduce vibration transmission, vibration damping components 606 are provided between the conversion assembly 60, the support plate 37 and the interior of the shell 31; moreover, the outer shell 601 of the conversion assembly 60 is also provided with a mounting part 607. The inner wall of the first shell 35 is provided with a first mounting cavity 35b that matches the mounting part 607, and the inner wall of the second shell 36 is formed with a second mounting cavity 36a. The periphery of the support plate 37 is limited and installed in the second mounting cavity 36a.

[0065] The vibration damper 606 is specifically installed on two key energy transmission paths in the power assembly, forming a two-stage vibration damping system that effectively isolates bidirectional vibrations from the motor 34 and the working component 10. The first core mounting location is on the mounting portion 607 of the housing 601 of the conversion component 60. This mounting portion 607 is a structure on the housing 601 specifically designed for fixing to the first housing 35, typically appearing as an annular flange or boss. The vibration damper 606, as an integral annular bushing or sleeve, is tightly and circumferentially pressed onto the entire outer circumferential surface of the mounting portion 607. When the conversion component 60 is installed into the first housing 35, this mounting portion 607 with the vibration damper 606 precisely embeds into the corresponding first mounting cavity 35b on the inner wall of the first housing 35. The vibrations generated by the conversion component 60 during operation are interrupted by the vibration damper 606, preventing direct hard contact and collision between the mounting portion 607 of the conversion component and the first housing 35, thereby significantly reducing the transmission of vibrations to the outer housing and operating noise.

[0066] The second core mounting position of the vibration damper 606 is located on the peripheral edge of the support plate 37. The support plate 37, as a core structural component connecting the motor 34, the conversion assembly 60, and the housing 31, is the main transmission channel for the vibration of the motor 34. Multiple "ribs" for positioning and limiting are designed on the peripheral edge of the support plate 37. The vibration damper 606, in the form of a strip or block of elasticity, is precisely assembled or wrapped around these ribs. When the entire power assembly 30 is assembled, the peripheral side of the support plate 37 (i.e., the part with the ribs and vibration damper 606) is embedded and limited within the second mounting cavity 36a on the inner wall of the second housing 36. In this way, the support plate 37 achieves a flexible connection with the second housing 36 through the peripheral vibration damper 606. The enormous vibrations and electromagnetic noise generated by the motor 34 during operation are effectively absorbed and attenuated by this ring of vibration dampers 606 after being transmitted to the support plate 37, greatly preventing vibration from being directly transmitted to the handheld part of the device through the support plate 37, thus improving user comfort. In summary, the vibration damper 606, through the deployment of these two key interfaces, jointly constructs a highly efficient integrated vibration damping system.

[0067] Furthermore, refer to Figures 19 to 23 The structure of the handle assembly 40 is described in detail below. Specifically, the handle assembly 40 includes a left handle housing 401 and a right handle housing 402. The left handle housing 401 and the right handle housing 402 are assembled by multiple fasteners and form a through channel that runs from front to back, through which the rod of the connecting rod 20 passes.

[0068] In this embodiment, a limiting member 300 is provided at each end of the channel inside the handle. The limiting member 300 directly applies a radial clamping force to the connecting rod 20, thereby facilitating the fixed installation of the handle assembly 40 on the connecting rod 20.

[0069] Specifically, the limiting component 300 mainly includes a fixing sleeve 301 and a clamp 302. The outer surface of the fixing sleeve 301 is provided with multiple limiting ribs 303 circumferentially. The clamp 302 is embedded in the limiting space formed by two adjacent limiting ribs 303. The fixing sleeve 301 has an opening 301a. Through the setting of the opening 301a, the fixing sleeve 301 can deform and change the size of the opening. In addition, the two ends of the clamp 302 extend outward to form a first extension 302a and a second extension 302b, respectively. These two extensions are connected to the left housing 401 or the right housing 402 of the handle by a dedicated fastener 403 (e.g., a bolt). In this embodiment, the first extension 302a and the second extension 302b are connected to the right housing 402 of the handle via a fastener 403. The right housing 402 of the handle has a limiting hole 404 at the position corresponding to the tail of the fastener 403. This hole allows tools (such as screwdrivers or Allen wrenches) to be inserted to operate the fastener 403, and also limits the axial movement of the fastener 403 to prevent it from coming out of the limiting hole 404 and being lost when it is fully loosened.

[0070] Specifically, refer to Figure 22The limiting hole 404 includes a first limiting hole portion 404a and a second limiting hole portion 404b that are interconnected. The diameter of the first limiting hole portion 404a is larger than the tail diameter of the fastener 403, and the diameter of the second limiting hole portion 404b is smaller than the tail diameter of the fastener 403. The opening of the second limiting hole portion 404b extends to the surface of the right housing 402 of the handle. The first limiting hole portion 404a faces the tail of the fastener 403. The first extension portion 302a and the second extension portion of the clamp 302 are also mentioned. After fastener 403 is connected to 302b, the head of fastener 403 is fixedly connected to the hole on the left housing 401 of the handle (e.g., threaded connection). After the left housing 401 and the right housing 402 of the handle are joined together, the first limiting hole 404a on the right housing 402 covers the tail of fastener 403. When it is necessary to loosen fastener 403, the operator inserts a tool into the first limiting hole 404a and rotates fastener 403, causing it to gradually exit the threaded hole on the left housing 401 of the handle. As fastener 403 moves axially backward, its tail will move from the first limiting hole 404a to the second limiting hole 404b. Since the diameter of the second limiting hole 404b is smaller than the diameter of the tail of the fastener, fastener 403 will be effectively blocked by the edge of the second limiting hole 404b during the withdrawal process, thus preventing it from completely detaching from the right housing 402 of the handle. This structure ensures ease of assembly and disassembly while effectively preventing fastener 403 from accidentally falling off in a non-disassembly state and also preventing it from being lost during maintenance.

[0071] The handle installation process is as follows: Since each end of the handle has a limiting member 300, when installing the handle onto the connecting rod 20, the user simply loosens the fasteners 403 at the limiting members 300 at both ends. This increases the distance between the first extension 302a and the second extension 302b of the clamp, causing the entire fixing sleeve 301 to elastically deform and its inner diameter to increase, allowing the connecting rod 20 to pass through easily. Once the handle is in the predetermined position, the user tightens the fasteners 403 in the opposite direction, reducing the distance between the two extensions of the clamp. The clamp 302 then strongly presses against the fixing sleeve 301, causing its inner diameter to contract, thus firmly gripping the outside of the connecting rod 20. This design allows the locking force to act directly on the rod body, avoiding force loss and potential wobbling caused by indirect clamping through squeezing the handle housing. During the entire installation process, apart from removing and installing the fasteners 403, no other fasteners or the handle housing need to be removed or installed.

[0072] Furthermore, this mounting structure houses the critical fastener 403 within the right housing 402 of the handle, optimizing the integrity of the external structure. The head of the fastener 403 is shielded by the periphery of the limiting hole 404, no longer fully exposed to the external environment. This significantly reduces the risk of rust or jamming caused by rainwater, dust, etc., and also reduces the impact of accidental external impacts or interference on the fastening status, improving the reliability and durability of the entire handle assembly in complex usage environments.

[0073] In addition, refer to Figure 21 , Figure 24 Multiple circumferentially extending blocking ribs 406 are provided on the inner walls of the left and right handle housings 401 and 402. These blocking ribs 406 support the surface of the fixing sleeve 301 and are adapted to its shape. Adjacent blocking ribs 406 form mounting grooves 405. When the left and right handle housings 401 and 402 are assembled, the limiting ribs 303 on the outer wall of the fixing sleeve 301 are accommodated in the corresponding mounting grooves 405. Simultaneously, the blocking ribs 406 abut against the axial side of the limiting ribs 303, thereby axially limiting the fixing sleeve 301 and effectively preventing the limiting component 300 from rotating or axially shifting inside the handle. Additionally, a wiring harness 400 is integrated inside the handle. The wiring harness 400 can be plugged into the power assembly 30 for electrical connection. The inner wall of either the left or right handle housing 401 has a wire-holding groove 407 to neatly secure the wiring harness 400 and prevent interference or wear with the passing connecting rod 20.

[0074] It should be noted that the fixing sleeve 301, as the basic component that directly contacts the connecting rod 20, is preferably made of engineering plastic. Plastic possesses inherent micro-elasticity and toughness, and when the clamp 302 is tightened, it can produce uniform and controllable radial deformation, thus tightly wrapping the surface of the connecting rod 20. Simultaneously, its extremely high surface smoothness significantly reduces the frictional resistance of the rod during insertion or adjustment, making the installation and debugging process smoother and less strenuous. Secondly, as a high-molecular polymer, plastic has better internal damping characteristics than metal, making it an effective vibration damper in itself. When vibration is transmitted from the connecting rod 20, the fixing sleeve 301 can absorb and dissipate a portion of the vibration energy through its own micro-deformation, achieving the first attenuation of vibration along the transmission path.

[0075] The clamp 302 is preferably made of high-strength metal, and its main function is to provide a strong and reliable locking force. The yield strength and high rigidity of the metal clamp 302 ensure that the connection point will not loosen or slip when it needs to withstand the reaction force from the working components, impact loads, and the weight of the equipment itself, thus ensuring the safety of use.

[0076] 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 handle mounting structure, comprising a handle and a connecting rod, wherein the handle has a through channel extending from front to back for the rod body of the connecting rod to pass through; Its features are, The handle is provided with a limiting component inside. The limiting component is sleeved on the outside of the rod body and can operate to apply a radial clamping force to the rod body to achieve circumferential fixation of the handle and the connecting rod.

2. The handle mounting structure according to claim 1, characterized in that, The handle includes a detachably connected left handle housing and a right handle housing, and the channel is formed by the left handle housing and the right handle housing together.

3. The handle mounting structure according to claim 1, characterized in that, There are two limiting members, which are arranged at intervals at both ends of the channel.

4. The handle mounting structure according to claim 2, characterized in that, The limiting component includes a fixing sleeve and a clamp, and the outer circumferential surface of the fixing sleeve is provided with a plurality of limiting ribs. The clamp is fitted into the limiting space formed by two adjacent limiting ribs, and the clamp has a first extension and a second extension. The first extension and the second extension are fixedly connected to the handle by a fastener.

5. The handle mounting structure according to claim 4, characterized in that, Tightening or loosening the fastener can drive the first extension and the second extension closer or further apart, thereby forcing the retaining sleeve to undergo radial deformation through the clamp to lock or loosen the rod.

6. The handle mounting structure according to claim 4, characterized in that, The left or right housing of the handle has a limiting hole at the position corresponding to the head of the fastener; The size of the limiting hole is configured to allow a tool to pass through to operate the fastener, while restricting the fastener from dislodging from the left or right housing of the handle when released.

7. The handle mounting structure according to claim 4, characterized in that, The inner wall of the left and / or right housing of the handle has a mounting groove formed at the mounting position of the limiting member, and the limiting member is accommodated in the mounting groove.

8. The handle mounting structure according to claim 7, characterized in that, The inner wall of the mounting groove has a blocking rib extending toward the limiting member. The blocking rib engages with the limiting rib on the fixing sleeve to restrict the limiting member from rotating or moving axially within the mounting groove.

9. The handle mounting structure according to claim 4, characterized in that, The fixing sleeve is made of engineering plastic, and the clamp is made of metal.

10. The handle mounting structure according to claim 4, characterized in that, The retaining sleeve has an opening configured to allow the retaining sleeve to undergo radial deformation when subjected to force.

11. The handle mounting structure according to any one of claims 2 to 10, characterized in that, The handle is also provided with a wire harness for electrical connection, and the inner wall of the left and / or right housing of the handle is formed with a wire clamping groove for neatly fixing the wire harness.

12. A garden tool, characterized in that, The handle mounting structure includes any one of claims 1-11.

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