A folding device for a hedge trimmer handle

Abstract

This utility model proposes a folding device for the handle of a hedge trimmer, belonging to the field of hedge trimmer design technology. It includes: a bottom housing; a ring-shaped handle rotatably mounted on the bottom housing; and a rotary button rotatably mounted inside the ring-shaped handle, with its rotation center perpendicular to the rotation center of the ring-shaped handle. The bottom housing has a first groove and a second groove, which form angles with the lines connecting the first and second grooves to the rotation center of the ring-shaped handle. This utility model has a reasonable design structure. Based on the existing hedge trimmer structure, a bottom housing is connected to the lower end of the ring-shaped handle using bolts (non-fixed connection). This allows for quick adjustment of the ring-shaped handle's direction to adapt to different operating needs with single and double blades. Furthermore, the switching method is simple, flexible, and fast, avoiding the problems of parts loss and inefficient switching that often occur when adjusting the handle direction in traditional hedge trimmers, thus effectively improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of hedge trimmer design technology, and in particular to a folding device for a hedge trimmer handle. Background Technology

[0002] In the field of garden maintenance, the handle structure of hedge trimmers is a key component for human-computer interaction, and its design directly affects work efficiency and portability. Traditional fixed handles have significant drawbacks.

[0003] When using a single-blade hedge trimmer, the horizontal handle allows the operator to apply force laterally, providing more natural control over the machine's lateral cutting motion and reducing fatigue. When using a double-blade hedge trimmer, the vertical handle allows the operator to push and pull directly towards the work surface, resulting in more direct and efficient force transmission, suitable for its bidirectional cutting and pushing operation. Traditional hedge trimmers have fixed handles, preventing simultaneous switching of the ring handle direction when switching between single and double blades, leading to low operating comfort. Current hedge trimmers using rotatable handles to accommodate both single and double blade operations require fully unscrewing the screws connecting the handle for rotation, resulting in cumbersome disassembly and assembly, and a higher risk of losing parts.

[0004] In summary, the traditional hedge trimmer handle structure and existing improvement solutions have significant shortcomings, requiring new and innovative designs to meet the actual needs of garden maintenance operations. Utility Model Content

[0005] This utility model proposes a folding device for the handle of a hedge trimmer, which solves the problems mentioned in the background art, such as the traditional fixed handle having an unadjustable angle and low adaptability to trimming angles; and the existing folding solutions being cumbersome to operate, prone to losing parts, and lacking practicality.

[0006] The technical solution of this utility model is implemented as follows:

[0007] Bottom casing;

[0008] A ring-shaped grip is rotatably mounted on the bottom housing;

[0009] The rotary button is rotatably mounted inside the ring grip, and its center of rotation is perpendicular to the center of rotation of the ring grip.

[0010] The bottom housing has a first groove and a second groove, which are at angles to each other with the line connecting the rotation center of the ring grip. The rotary button has a limiting end that can be placed in the first groove and the second groove.

[0011] By adopting the above technical solution, the handle can be rotated by pressing down the rotary button and rotating the ring handle counterclockwise, easily adapting to trimming work at different angles; and it does not require the screws to be completely unscrewed to rotate, avoiding the problem of lost parts, and improving practicality.

[0012] Preferably, the bottom housing is provided with a cylindrical groove, and a first through hole is provided at the center of the cylindrical groove.

[0013] The above technical solution is mainly used to install a ring grip for fixing, and the first through hole is used to place a bolt.

[0014] Preferably, the lower end of the annular grip has a cylindrical protrusion that can be placed in a cylindrical groove in the bottom housing, and the center of the cylindrical protrusion has a second through hole that matches the first through hole.

[0015] By adopting the above technical solution, the first through hole and the second through hole are matched, which serves to connect the ring grip and the bottom housing after the bolt is inserted.

[0016] Preferably, a receiving groove is provided at the middle position of the second through hole, which coincides with the axis of the second through hole and is used to accommodate the nut. The receiving groove has a hexagonal cross-section.

[0017] By adopting the above technical solution, it is mainly used for connection with bolts, but the bolts and nuts are not locked and can rotate relative to each other, which provides the original power for the rotation of the handle.

[0018] Preferably, a first opening is provided below the annular grip, and the limiting end of the rotary button can pass through the first opening and extend downward.

[0019] The above technical solution is mainly used to place the limiting end of the rotary button, thus achieving a partial limiting effect on the rotary button.

[0020] Preferably, the inner ring of the ring grip has a second opening, and the pressing end of the rotary button can be placed in the second opening.

[0021] The main purpose of adopting the above technical solution is to allow the front end of the rotary button to protrude from the inner surface of the ring grip, making it easier to press.

[0022] Preferably, the limiting end of the rotary button has an upwardly extending fixing rod, and a spring is sleeved on the fixing rod. The upper end of the spring abuts against the annular grip and the lower end abuts against the rotary button.

[0023] By adopting the above technical solution, the pressing end of the rotary button can be pressed down smoothly. At this time, the limiting end is lifted up and is no longer limited in the first or second groove. The ring handle can then rotate relative to the bottom housing. When the force applied to the pressing end of the rotary button is stopped, the spring applies a downward force to the limiting end of the rotary button, and the limiting end is fixed in the first or second groove. Thus, the ring handle can be rotated simply by pressing the button.

[0024] Preferably, the first through hole and the second through hole are connected, bolts are installed in the first through hole and the second through hole, and nuts are installed in the receiving groove.

[0025] By adopting the above technical solution, the bolts and nuts are not locked, and while serving a connecting function, they can also have a relative rotation function, which can play a key role in the rotation of the ring grip.

[0026] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0027] This utility model has a reasonable design structure. Based on the existing hedge trimmer structure, a bottom housing is connected to the lower end of the ring handle with bolts for non-fixed connection. On the one hand, the direction of the ring handle can be quickly adjusted to adapt to the different operating requirements of single and double blades. On the other hand, the switching method is simple, flexible and fast, avoiding the phenomenon of easy loss of parts and low switching efficiency and wasted time when adjusting the handle direction of traditional hedge trimmers, thus effectively improving practicality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural diagram of the non-folding grip of this utility model;

[0030] Figure 2 This is a structural diagram of the folding grip of this utility model;

[0031] Figure 3 This is a side view of the present invention;

[0032] Figure 4 This is a side sectional view of the connection between the bottom housing and the ring grip of this utility model.

[0033] Figure 5This is a top view of the bottom housing of the part connected to the ring grip of this utility model;

[0034] Figure 6 This is a partially enlarged top view of the bottom housing of the part connected to the ring grip of this utility model.

[0035] in:

[0036] 1. Chip baffle; 2. Front grip; 3. Extended housing; 4. Bottom housing; 401. Cylindrical groove; 402. First through hole; 403. First groove; 404. Second groove; 5. Body; 6. Ring grip; 601. Cylindrical protrusion; 602. Second through hole; 603. First opening; 604. Receiving groove; 605. Second opening; 606. Limiting wall; 7. Rotary button; 701. Cylindrical support; 702. Fixing rod; 703. Spring; 704. Press end; 705. Limiting end; 8. Bolt; 9. Nut. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] See Figures 1-6 A folding device for a hedge trimmer handle, comprising:

[0039] The ring-shaped grip 6 has a hollow structure, with a cylindrical protrusion 601 integrally formed at its lower end. A cylindrical second through hole 602 is formed in the center of the protrusion 601 to accommodate the bolt 8; a larger-diameter hexagonal receiving groove 604 is formed in the middle section of the second through hole 602 to hold the nut 9 that mates with the bolt 8. Directly above the protrusion, the inner ring housing of the grip 6 has a second opening 605 for mounting the rotary button 7. Behind the cylindrical protrusion 601, the outer ring housing of the grip 6 has a first opening 603, through which the limiting end 705 of the rotary button 7 can pass and extend downward. A limiting wall 606 is formed on the inner surface of the grip 6 directly above the first opening 603 to limit the position of the spring 703.

[0040] The rotary button 7 is divided into a pressing end 704, a middle end, and a limiting end 705. The pressing end 704 is slightly arched; the middle end has cylindrical support pillars 701 extending to both sides, which are embedded in the circular groove of the handle 6; the limiting end 705 has a vertically upward fixing rod 702 for fixing the spring 703. The lower end of the spring 703 is sleeved on the fixing rod 702, and the upper end passes through the first opening 603 and abuts against the inner surface of the handle 6. The rotary button 7 is rotatably and tiltedly fixed to the ring handle, with its pressing end 704 extending out of the second opening 605, and the limiting end 705 lower than the pressing end 704. Under the downward elastic force of the spring 703, the limiting end 705 of the button 7 is located in the first groove 403 of the bottom housing 4.

[0041] The front half of the bottom housing 4 connects to the second groove 404 of the body 5, while the rear half is loosely connected to the bottom of the ring grip 6 via bolts 8. A cylindrical groove 401 is formed at the connection point, its diameter matching the protrusion 601 of the cylindrical structure of the grip 6. A first through hole 402, with the same diameter as the through hole 602, is formed in the center of the groove 401 to accommodate the bolt 8. The protrusion 601 of the cylindrical structure of the grip 6 is inserted into the groove 401, connecting the first through hole 402 with the second through hole 602 to form a longer through hole. A nut 9 is placed in the receiving groove 604, and the bolt 8 is placed in the connecting through hole, thus completing the connection between the bottom housing 4 and the ring grip 6. The bolt 8 and nut 9 are not locked and can rotate relative to each other.

[0042] In actual operation, such as Figure 1 As shown, when the grip is not folded, a downward pressure needs to be applied to the pressing end 704 of the rotary button 7 on the grip portion. This pressing force overcomes the elastic force of the spring 703, driving the rotary button 7 to tilt around the axis formed by its central support 701. The direct result is that the fixing rod 702 on the button limiting end 705 lifts upward, thereby completely disengaging its limiting end 705 from the first groove 403 originally embedded in the bottom housing 4. At this time, the limitation of the limiting end 705 of the rotary button 7 on the rotation of the ring grip 6 relative to the bottom housing 4 is released. While maintaining the downward pressure on the front end of the rotary button 7, the user can apply a counterclockwise rotational force to the body of the ring grip 6. Since the bolt 8 and nut 9 are in a loosely fitted state, the ring grip 6 can rotate smoothly around the connecting axis. When the rotation angle reaches such a state... Figure 2When the user releases pressure on the rotary button 7 at the indicated 90-degree position, the compressed spring 703 quickly extends downwards to its original position under its own elastic restoring force. This action causes the limiting end 705 of the rotary button 7 to move downwards synchronously. Since the ring grip 6 has rotated to the new position, the corresponding second groove 404 on the bottom housing 4 rotates precisely to be below the limiting end 705 of the rotary button 7. Therefore, driven by the restoring force of the spring 703, the limiting end 705 of the rotary button 7 accurately falls into the second groove 404. The re-embedding of the limiting end 705 of the rotary button 7 forms an effective mechanical limit, thereby firmly locking the rotated ring grip 6 in the new 90-degree angle position.

[0043] The design of this ring grip 6 and its rotating locking mechanism serves the need for switching between single-blade and double-blade working modes. When the device is configured for single-blade mode, the ring grip 6 rotates and locks in a specific lateral position (usually perpendicular to the main working plane) through the aforementioned operation, providing a grip posture suitable for single-blade operation, such as... Figure 1 As shown. When the device needs to be switched to dual-blade mode, the user uses the same pressing, rotating, and releasing procedure to rotate the ring grip 6 counterclockwise by 90 degrees and lock it in a straight position (usually parallel to the main working plane or in a direction consistent with dual-blade operation), thus adapting it to the grip and operation requirements of dual-blade mode, such as... Figure 2 As shown in the diagram, this structural design enables a fast, reliable, and intuitive switching between two operating modes.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding device for a hedge trimmer handle, characterized in that, include: Bottom casing (4); A ring-shaped handle (6) is rotatably mounted on the bottom housing (4); A rotary button (7) is rotatably mounted inside the ring grip (6), and its rotation center is perpendicular to the rotation center of the ring grip (6). The bottom housing (4) is provided with a first groove (403) and a second groove (404). The first groove (403) and the second groove (404) are respectively angled to each other by the line connecting them to the rotation center of the ring grip (6). The rotary button (7) has a limiting end (705) that can be placed in the first groove (403) and the second groove (404).

2. The folding device for a hedge trimmer handle according to claim 1, characterized in that: The bottom housing (4) is provided with a cylindrical groove (401), and a first through hole (402) is provided at the center of the cylindrical groove (401).

3. A folding device for a hedge trimmer handle according to claim 2, characterized in that: The lower end of the ring grip (6) has a cylindrical protrusion (601) that can be placed in the cylindrical groove (401) of the bottom housing (4). The center of the cylindrical protrusion (601) has a second through hole (602) that matches the first through hole (402).

4. A folding device for a hedge trimmer handle according to claim 3, characterized in that: The second through hole (602) has a receiving groove (604) at the middle position, which coincides with the axis of the second through hole (602) and is used to accommodate the nut. The receiving groove (604) has a hexagonal cross-section.

5. A folding device for a hedge trimmer handle according to claim 1, characterized in that: The ring grip (6) has a first opening (603) below it, and the limiting end (705) of the rotary button (7) can pass through the first opening (603) and extend downward.

6. A folding device for a hedge trimmer handle according to claim 1, characterized in that: The inner ring of the ring grip (6) has a second opening (605), and the pressing end (704) of the rotary button (7) can be placed at the second opening (605).

7. A folding device for a hedge trimmer handle according to claim 1, characterized in that: The limiting end (705) of the rotary button (7) has an upwardly extending fixing rod (702), and a spring (703) is sleeved on the fixing rod (702). The upper end of the spring (703) abuts against the ring handle (6), and the lower end abuts against the rotary button (7).

8. A folding device for a hedge trimmer handle according to claim 4, characterized in that: The first through hole (402) and the second through hole (602) are connected. Bolts (8) are installed in the first through hole (402) and the second through hole (602), and nuts (9) are installed in the receiving groove (604).

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