A hand-held trimming tool

Abstract

The utility model relates to a handheld pruning tool, including main part, the blade subassembly of setting in the front end of main part, the power device of setting in the rear end of main part, the main part includes handle, the main casing that links with handle, set up in the drive assembly of main casing, drive assembly is used for driving blade subassembly, handheld pruning tool still includes the support device of detachable installation on main part, and the support device includes the support part for supporting user arm, and the support part is located handle rear side, and when operating, can support user arm through the support part, and operation is more laborsaving.

Description

Technical Field

[0001] This utility model relates to a handheld trimming tool, and more specifically to a handheld trimming tool with a support device. Background Technology

[0002] Single-handed hedge trimmers are now widely used for tea picking, home garden repairs, and other tasks. Because they only have one handle, the user can only support the machine with that single handle. When cutting objects of a certain height, not only must an upward force be applied, but the wrist must also exert torque to maintain the cutting blade's angle, making operation quite tiring. The wrist, in particular, is a relatively fragile and unstable joint component, prone to wobbling and sprains during operation, resulting in a very poor human-machine experience. Utility Model Content

[0003] To address at least one of the aforementioned technical problems, this application provides a handheld trimming tool that can support the user's arm and is easier to operate.

[0004] This application provides a handheld trimming tool, including a main body, a blade assembly disposed at the front end of the main body, and a power supply device disposed at the rear end of the main body. The main body includes a handle and a drive assembly disposed within the main body, the drive assembly being used to drive the blade assembly.

[0005] The handheld trimming tool also includes a detachable support device mounted on the main body, the support device including a support portion for supporting the user's arm, the support portion being located behind the handle.

[0006] Preferably, the support device further includes a mounting portion for detachable installation on the main body, and a connecting portion connecting the mounting portion and the support portion.

[0007] Preferably, the support portion includes a support plate and a flexible pad located on the outer surface of the support plate.

[0008] Preferably, the support plate is an arc-shaped structure or a flat plate structure.

[0009] Preferably, the connecting part is a telescopic rod, which includes a hollow first rod, a second rod sleeved inside the first rod, and a locking member.

[0010] The telescopic rod has a first state, and the locking member locks the first rod and the second rod so that the second rod is fixed relative to the first rod;

[0011] The telescopic rod has a second state in which the locking member is unlocked, allowing the second rod to extend and retract infinitely relative to the first rod.

[0012] Preferably, the support device further includes a universal rotating structure located between the connecting part and the mounting part.

[0013] Preferably, the main body further includes a main housing, the drive assembly is located inside the main housing, the main housing is located between the handle and the power supply device, and the mounting part is mounted on the main housing.

[0014] Preferably, the mounting portion is mounted on the side of the drive assembly away from the handle.

[0015] Preferably, one of the main housing and the mounting part is provided with a retaining groove, and the other is provided with a retaining part that matches the retaining groove.

[0016] Preferably, the drive assembly includes a motor and a gear reduction device located between the motor and the blade assembly.

[0017] The handheld trimming tool provided in this application is equipped with a detachable support device that can be installed on the main body. The support device includes a support part for supporting the user's arm. The support part is located on the rear side of the handle. During operation, the support part can support the user's arm, reduce the torque that the wrist needs to apply, making operation more effortless. It can also stabilize the wrist angle, protect the wrist and reduce the risk of injury. Furthermore, it can be detached and stored when the user does not need to use it, resulting in a better human-machine experience. Attached Figure Description

[0018] Figure 1 A schematic diagram of the handheld trimming tool provided in this application;

[0019] Figure 2 for Figure 1 Front view after part of the shell has been removed using a hand-held trimming tool;

[0020] Figure 3 A schematic diagram of the entire handheld trimming tool according to another embodiment of this application;

[0021] Figure 4 for Figure 3 Front view of a handheld trimming tool;

[0022] Figure 5 A schematic diagram of the support portion of the handheld trimming tool provided in this application;

[0023] Figure 6 A schematic diagram of the structure of another embodiment of the support portion of the handheld trimming tool provided in this application;

[0024] Figure 7 for Figure 4 Sectional view along AA;

[0025] Figure 8 A partial enlarged view of the support device for the handheld trimming tool provided in this application. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] This application discloses a handheld trimming tool 100, including a main body 1, a blade assembly 2 disposed at the front end of the main body 1, a power supply device 3 disposed at the rear end of the main body 1, and a support device 4.

[0030] The main body 1 includes a handle 11, a main housing 13, and a drive assembly 14 disposed within the main housing 13. The handheld trimming tool 100 of this invention has only one handle 11 for the user to hold, and the handle 11 is also provided with a trigger 12 for the user to operate and control the drive assembly 14. When the user presses the trigger 12 to turn on the tool, the drive assembly 14 operates, driving the blade assembly 2 to move, and the handheld trimming tool 100 performs cutting; when the user releases the trigger 12 to stop the tool, the drive assembly 14 stops operating, and the handheld trimming tool 100 stops cutting.

[0031] Specifically, the main housing 13 is located between the handle 11 and the power supply unit 3, and the drive assembly 14 is installed inside the main housing 13. The drive assembly includes a motor 141, a gear reducer 142 located between the motor 141 and the blade assembly 2, and an eccentric wheel (not shown in the figure). The gear reducer 142 is a two-stage planetary gear reducer mechanism. This two-stage planetary gear reducer mechanism includes a first-stage reduction gear set and a second-stage reduction gear set. The first-stage reduction gear set includes a first-stage sun gear, a first-stage planet carrier, and first-stage planet gears meshing sequentially. The second-stage reduction gear set includes a second-stage sun gear, a second-stage planet carrier, and second-stage planet gears meshing sequentially.

[0032] The blade assembly 2 includes a first blade 21 and a second blade 22. The first blade 21 also has a waist-shaped hole. The motor 141 drives a first-stage sun gear, which drives a first-stage planetary carrier, which drives a first-stage planetary gear, which drives a second-stage sun gear, which drives a second-stage planetary carrier, which drives a second-stage planetary gear, which drives an eccentric wheel. The eccentric wheel moves within the waist-shaped hole, thereby causing the first blade 21 to reciprocate relative to the second blade 22, achieving cutting.

[0033] In some embodiments, the power supply device 3 is a battery. In other embodiments, the power supply device 3 is a plug-in connector, the other end of which is connected to AC power or a battery pack. Alternatively, the power supply device 3 can also be an adapter, the other end of which is connected to a battery pack.

[0034] The support device 4 of this application includes a support part 41 located behind the handle 11, a mounting part 42 mounted on the main housing 13, a connecting part 43 located between the support part 41 and the mounting part 42, and a universal rotating structure 44 located between the mounting part 42 and the connecting part 43. When the user holds the handle 11 to lift the machine for cutting operations, the support part 41 supports the user's arm, making operation more effortless.

[0035] Specifically, such as Figure 5 , Figure 6 The support portion 41 includes a support plate 411 and a flexible pad 412 wrapped around the outer surface of the support plate 411. For example... Figure 5 The support plate 411 can be an arc-shaped structure. For example... Figure 6 The support plate 411 can be a flat plate structure. The support plate 411 specifically supports the user's forearm. When the hand holds the handle 11, the forearm is supported by the support plate 411, and the wrist can be stably fixed. It is not necessary to exert effort to keep the wrist fixed at a certain angle during operation, which is more stable and safer.

[0036] like Figure 8The universal rotating structure 44 includes a ball joint 441, a receiving seat 442, and a locking bolt 443. The receiving seat 442 has a spherical cavity, and the ball joint 441 is housed within the spherical cavity and can rotate omnidirectionally within the cavity. The receiving seat 442 has a threaded hole 444, and the thread of the locking bolt 443 matches the threaded hole 444. The universal rotating structure 44 has a fixed state, in which the locking bolt 443 can pass through the threaded hole 444 and abut against the ball joint 441, fixing the ball joint 441 relative to the receiving seat 442; and an unlocked state, in which there is a gap between the locking bolt 443 and the ball joint 441, allowing the ball joint 441 to rotate within the receiving seat 442. One of the ball joint 441 and the receiving seat 442 is located on the mounting portion 42, and the other is located on the connecting portion 43. In the handheld trimming tool 100 of this application, as... Figure 8 A ball joint 441 is disposed on the connecting part 43, and a receiving seat 442 is disposed on the mounting part 42. During operation, the universal rotating structure 44 is unlocked and enters the unlocked state. The support part 41 is rotated to adjust the angle and height of the support part 41. This allows the support part 41 to be adjusted to fully conform to the user's arm when the arm is raised to different heights or when the user's wrist angle is different, providing stable support and improving support comfort.

[0037] The mounting part 42 is detachably mounted on the main housing 13 to allow selective mounting of the support device 4 according to individual needs. Specifically, the mounting position is located on the side of the motor 141 furthest from the handle 11, i.e., the mounting part 42 is mounted between the motor 141 and the power supply unit 3. One of the main housing 13 and the mounting part 42 is provided with a retaining groove 45, and the other is provided with a retaining part 46 that matches the retaining groove 45. Figure 1 , Figure 2 The retaining slot 45 is provided on the main housing 13, and the retaining part 46 is provided on the mounting part 42; for example Figure 3 , Figure 4 The retaining slot 45 is provided on the mounting part 42, and the retaining part 46 is provided on the main housing 13. The retaining slot 45 and the retaining part 46 can be retained by an interference fit, or they can be detached and installed by other detachable structures.

[0038] The connecting part 43 is a telescopic rod, allowing the user to adjust the distance between the support part 41 and the handle 11, accommodating people of different heights. It also allows users of the same height to choose the position where the support rests on their arm. Figure 7The specific telescopic rod includes a first rod 431 connected to the mounting part 42, a second rod 432 connected to the support part 41, and a locking member 433. The first rod 431 has a hollow structure, and the second rod 432 is sleeved inside the first rod 431. The telescopic rod has a first state in which the locking member 433 is locked, at which time the second rod 432 can be fixed relative to the first rod 431; the telescopic rod has a second state in which the locking member 433 is unlocked, at which time the second rod 432 can extend and retract infinitely relative to the first rod 431.

[0039] like Figure 7 In one embodiment, the locking member 433 includes a collar 434 sleeved on the outer surface of the first rod 431, a wrench 435 pivotally connected to the collar 434 and movable along the circumference of the collar 434, an abutment portion 436 located on the wrench 435 that can pass through the first rod 431 and abut against the second rod 432, and a torsion spring 437 connected between the wrench 435 and the collar 434. The torsion spring 437 applies a force to the wrench 435 toward the surface of the collar 434 so that the abutment portion 436 abuts against the second rod 432. The telescopic rod of this application is not limited to this telescopic structure, and may also be other telescopic structures.

[0040] As can be seen from the above, the handheld trimming tool 100 disclosed in this application is provided with a support device 4 that can be detachably installed on the main body 1. The support device 4 includes a support part 41 for supporting the user's arm. The support part 41 is located on the rear side of the handle 11. During operation, the support part 41 can support the user's arm, reduce the torque that the wrist needs to apply, making operation more effortless, and can stabilize the wrist angle, protecting the wrist and reducing the risk of injury. When the user does not need to use it, it can be detached and stored, resulting in a better human-machine experience.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A handheld trimming tool, comprising a main body, a blade assembly disposed at the front end of the main body, and a power supply device disposed at the rear end of the main body, characterized in that: The main body includes a handle and a drive assembly disposed within the main body, the drive assembly being used to drive the blade assembly. The handheld trimming tool also includes a detachable support device mounted on the main body, the support device including a support portion for supporting the user's arm, the support portion being located behind the handle.

2. The handheld trimming tool as described in claim 1, characterized in that: The support device further includes a mounting portion for detachable installation on the main body, and a connecting portion connecting the mounting portion and the support portion.

3. The handheld trimming tool as described in any one of claims 1 or 2, characterized in that: The support includes a support plate and a flexible pad located on the outer surface of the support plate.

4. The handheld trimming tool as described in claim 3, characterized in that: The support plate is an arc-shaped structure or a flat plate structure.

5. The handheld trimming tool as described in claim 2, characterized in that: The connecting part is a telescopic rod, which includes a hollow first rod, a second rod sleeved inside the first rod, and a locking member. The telescopic rod has a first state, and the locking member locks the first rod and the second rod so that the second rod is fixed relative to the first rod; The telescopic rod has a second state in which the locking member is unlocked, allowing the second rod to extend and retract infinitely relative to the first rod.

6. The handheld trimming tool as described in claim 2, characterized in that: The support device also includes a universal rotating structure located between the connecting part and the mounting part.

7. The handheld trimming tool as described in claim 2, characterized in that: The main body also includes a main housing, the drive assembly is located inside the main housing, the main housing is located between the handle and the power supply device, and the mounting part is mounted on the main housing.

8. The handheld trimming tool as described in claim 7, characterized in that: The mounting part is installed on the side of the drive assembly away from the handle.

9. The handheld trimming tool as described in claim 7, characterized in that: One of the main housing and the mounting part is provided with a retaining groove, and the other is provided with a retaining part that matches the retaining groove.

10. The handheld trimming tool as described in claim 1, characterized in that: The drive assembly includes a motor and a gear reduction device located between the motor and the blade assembly.

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