A double handle structure for a mini-tiller and the mini-tiller

Abstract

The utility model discloses a double handle structure and micro cultivator for micro cultivator, include: pole body, two handle and locking assembly, at least one of two handle is movable handle, and can movably be coupled to pole body, locking assembly is used for with movable handle is joined to pole body and allows the height and angle of movable handle to be adjusted relative to pole body, locking assembly includes: the locking of cooperation locking and cooperation department, cooperation department has initial position and fixed position to make locking department is in the adjustment position or locking position, to unlock or lock movable handle. The present application solves the problem of complex structure, and the adjustment of different step in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of micro-tiller technology, specifically to a dual-handle structure for a micro-tiller and a micro-tiller. Background Technology

[0002] To accommodate different heights and working habits, mini tillers generally feature adjustable handles. This design typically allows users to independently adjust the height and angle of the handle to achieve the most ergonomic operating posture.

[0003] However, height and angle adjustments typically employ independent mechanisms. This not only increases structural complexity but also requires users to operate two separate mechanisms to complete the adjustment, significantly reducing efficiency. Furthermore, the adjustment process necessitates unlocking one dimension, adjusting it, and then locking it again before unlocking the other dimension for adjustment, making it even more difficult to find the optimal position due to potential asynchrony. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-handle structure for a micro-tiller and a micro-tiller, so as to solve the problems of complex structure and asynchronous adjustment in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-handle structure for a micro-tiller includes:

[0007] Rod body;

[0008] Two handles are spaced apart from the rod body, and at least one of the two handles is a movable handle and is rotatably connected to the rod body;

[0009] A locking assembly for engaging the movable handle to the rod body and allowing adjustment of the angle of the movable handle relative to the rod body;

[0010] The locking component includes:

[0011] The locking part has a first locking port and a second locking port, the rod body is slidably placed in the first locking port, and the movable handle is rotatably placed in the second locking port;

[0012] The engaging part engages with the locking part for locking and has an initial position and a fixed position. When the engaging part is in the initial position, the locking part is in an adjustment position to unlock the rod and the movable handle. Under the action of external force, the locking part slides relative to the rod and / or the movable handle rotates relative to the rod. When the engaging part moves to the fixed position, the locking part will simultaneously reduce the opening size of the first locking port and the second locking port due to the movement of the engaging part, so that the locking part is in a locked position that can simultaneously restrict the movement of the rod and the movable handle.

[0013] Furthermore, the locking part is used to undergo elastic deformation and / or plastic deformation as the mating part moves.

[0014] Furthermore, the locking part includes two locking arms, one end of the two locking arms is connected to form the first locking port, and the other ends of the two arms are arranged in parallel to form the second locking port.

[0015] Furthermore, each of the two locking arms is provided with a corresponding limiting flange, which is located on the opposite end face of the first locking port to form the locking space of the rod.

[0016] Furthermore, the limiting flange includes a first arc-shaped segment and a second arc-shaped segment connected together. The concave side of the first arc-shaped segment is disposed away from the first locking port, and the second arc-shaped segment is used to be tangent to or separate from the surface of the rod body.

[0017] Furthermore, each of the two locking arms is provided with a set of limiting teeth, forming a locking space for the movable handle. Each set of limiting teeth includes multiple limiting teeth spaced apart along the rotation direction of the movable handle. The movable handle is provided with multiple limiting slots for engaging or disengaging with the multiple limiting teeth in a one-to-one correspondence.

[0018] Furthermore, the cross-sectional area of ​​the limiting teeth gradually increases along the locking space direction away from the movable handle.

[0019] Furthermore, the mating part is configured as a bolt and a nut, and the locking part is provided with two through holes through which the bolt can pass.

[0020] Furthermore, one of the rod body and the first locking port is provided with a guide groove, and the other is provided with a guide protrusion. The guide protrusion is slidably disposed in the guide groove, and its sliding direction is consistent with the sliding direction of the locking part.

[0021] A micro-tiller includes: the dual-handle structure for micro-tillers described above.

[0022] Compared with existing technologies, this utility model has the following advantages: Firstly, the dual-handle design improves ease of operation; secondly, the mating part can switch between the initial position and the fixed position, allowing the locking part to switch between the adjustment position and the locking position. Only the mating part needs to be operated to control the simultaneous unlocking or locking of the dual-degree-of-freedom movable handle with a single action. When the mating part moves to the fixed position, its action forces the locking part to simultaneously reduce the opening size of the first and second locking ports, thus ensuring that the rod is firmly clamped by the first locking port, effectively resisting sliding along the rod direction, and that the movable handle is firmly clamped by the second locking port, effectively resisting rotation around the rod, ensuring synchronous and equally secure locking in both height and angle dimensions. In the unlocked state, the movable handle can simultaneously and freely slide in height and rotate in angle. Holding the handle with one hand allows for infinitely and continuously finding the optimal position of the handle, simplifying the structure and improving ease of operation and adjustment efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a dual-handle structure for a micro-tiller according to an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of a dual-handle structure for a micro-tiller according to an embodiment of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of a locking component according to an embodiment of the present invention;

[0026] Figure 4 This is a partial exploded view of the locking assembly according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the locking part according to an embodiment of the present invention;

[0028] Figure 6 for Figure 5 Sectional view along line AA;

[0029] Figure 7 This is a schematic diagram of the dual-handle structure for a micro-tiller according to an embodiment of the present invention, omitting the movable handle and locking assembly;

[0030] The reference numerals in the accompanying drawings include:

[0031] 1. Rod body; 2. Movable handle; 3. Fixed handle; 4. Locking part; 401. First locking port; 402. Second locking port; 403. Locking arm; 5. Mating part; 6. Limiting flange; 601. First arc segment; 602. Second arc segment; 7. Limiting tooth; 8. Limiting groove; 9. Guide groove; 10. Guide protrusion. Detailed Implementation

[0032] The present invention will be further described in detail below through specific embodiments:

[0033] In the embodiments of this utility model, such as Figures 1-4 As shown, the dual-handle structure for a micro-tiller includes: a rod body 1, two handles, and a locking assembly; the two handles are spaced apart from each other on the rod body 1, at least one of the two handles is a movable handle 2, and is rotatably connected to the rod body 1; the locking assembly is used to engage the movable handle 2 to the rod body 1 and allow the angle of the movable handle 2 to be adjusted relative to the rod body 1.

[0034] The locking assembly includes a locking part 4 and a mating part 5. The locking part 4 has a first locking port 401 and a second locking port 402. The rod 1 is slidably placed in the first locking port 401, and the movable handle 2 is rotatably placed in the second locking port 402. The mating part 5 engages with the locking part 4 for locking and has an initial position and a fixed position. When the mating part 5 is in the initial position, the locking part 4 is in an adjustment position that unlocks the rod 1 and the movable handle 2. Under the action of external force, the locking part 4 slides relative to the rod 1, and / or the movable handle 2 rotates relative to the rod 1. When the mating part 5 moves to the fixed position, the locking part 4 will simultaneously reduce the opening size of the first locking port 401 and the second locking port 402 due to the movement of the mating part 5, so that the locking part 4 is in a locking position that can simultaneously restrict the movement of the rod 1 and the movable handle 2.

[0035] Specifically, in this embodiment, the rod 1 has two handles spaced apart. One handle is a movable handle 2, which can rotate relative to the rod 1, and the other is a fixed handle 3, which is fixed to the end of the rod 1. This dual-handle design improves ease of operation. Of course, in other embodiments, both handles can be configured as movable handles 2, and their positions can be adjusted appropriately according to the grip position.

[0036] In this embodiment, a locking assembly is provided to allow the movable handle 2 to be rotatably mounted on the rod body 1. This locking assembly includes a locking part 4. To facilitate adjustment of both the rotation angle and height of the movable handle 2, the locking part 4 has a first locking port 401 and a second locking port 402. The rod body 1 can slide within the first locking port 401, and the movable handle 2 can rotatably be positioned within the second locking port 402. Thus, sliding the locking part 4 on the rod body 1 adjusts the height of the movable handle 2, and rotating the movable handle 2 relative to the rod body 1 adjusts its angle, thereby improving the flexibility of the movable handle 2.

[0037] In addition, the locking assembly also includes a mating part 5, which engages with the locking part 4 to lock or unlock the locking part 4. Specifically, the locking part 4 has an adjusting position and a locking position, and the mating part 5 has an initial position and a fixed position. When the mating part 5 is in the initial position, it releases the locking engagement of the locking part 4, allowing the locking part 4 to be in the adjusting position so that it can slide relative to the rod 1 under the action of an external force, and the movable handle 2 can rotate relative to the locking part 4 (depending on the actual position of the movable handle 2, the above two adjusting actions can be performed selectively or simultaneously). When the mating part 5 moves from the initial position to the fixed position, the movement of the mating part 5 allows the locking part 4 to switch from the adjusting position to the locking position, thereby causing the locking part 4 to simultaneously reduce the opening size of the first locking port 401 and the second locking port 402, thereby restricting the rod 1 and the movable handle 2 to be respectively confined at the first locking port 401 and the second locking port 402, and thus simultaneously restricting the movement of the rod 1 and the movable handle 2.

[0038] Therefore, in this embodiment, only one mating part 5 needs to be operated to simultaneously unlock or lock the height and angle of the movable handle 2; this completely eliminates the cumbersome steps of operating two independent mechanisms separately, greatly simplifying the adjustment process and improving efficiency. When the mating part 5 is in the initial position, the movable handle 2 can simultaneously slide freely in height and rotate freely in angle. The user can hold the movable handle 2 with one hand and find the optimal adjustment position of the movable handle 2 infinitely and continuously without additional operation of other parts, so as to achieve more intuitive and efficient "real-time adjustment" through simple linkage locking. When the mating part 5 moves to the fixed position, its action forcibly causes the locking part 4 to simultaneously reduce the opening size of the first locking port 401 and the second locking port 402, ensuring that the rod body 1 is firmly clamped by the first locking port 401 to effectively resist sliding along the direction of the rod body 1, and the movable handle 2 is firmly clamped by the second locking port 402 to effectively resist rotation around the rod body 1; this solves the problems that may occur in traditional independent mechanisms, such as "one is locked and the other is not locked" or "insufficient locking force leading to loosening". The locking engagement between the locking part 4 and the mating part 5 ensures that the locking in both height and angle dimensions is synchronous and equally secure, greatly improving the stability and safety of the movable handle 2 under operational vibration and stress conditions, and preventing accidental displacement. Furthermore, the locking engagement between the locking part 4 and the mating part 5 reduces the number of parts, lowers manufacturing complexity and potential assembly error points, resulting in a more compact structure that is easier to place in the space-constrained area of ​​the rod 1, making the overall design simpler.

[0039] In this embodiment, the locking part 4 is used to undergo elastic deformation and / or plastic deformation as the mating part 5 moves. Specifically, in order to respond to the switching between the adjusting position and the locking position, this embodiment defines the locking part 4 as capable of elastic deformation and / or plastic deformation as the mating part 5 moves, so that as the mating part 5 moves to the fixed position, the locking part 4 can gradually reduce the opening size of the first locking port 401 and the second locking port 402. By changing the opening size of the first locking port 401 and the second locking port 402, the rod body 1 and the movable handle 2 are clamped between them respectively, so that when the mating part 5 moves to the fixed position, the locking part 4 can be in the locking position, thereby simultaneously restricting the movement of the rod body 1 and the movable handle 2. Conversely, when the mating part 5 moves from the fixed position to the initial position, as the locking part 4 gradually loses the constraint of the mating part 5, the deformation of the locking part 4 accumulates the spring force that drives the first locking port 401 and the second locking port 402 to reset. Therefore, the opening size of the first locking port 401 and the second locking port 402 will gradually increase, thereby simultaneously releasing the restriction on the rod body 1 or the movable handle 2, so that the height and angle of the movable handle 2 can be adjusted under the action of external force.

[0040] like Figures 3-6 As shown, in one embodiment, the locking part 4 includes two locking arms 403. One end of the two locking arms 403 is connected to form the first locking opening 401, and the other ends are arranged in parallel to form the second locking opening 402. Specifically, in order to simultaneously constrain or release the rod body 1 and the movable handle 2 under the action of the mating part 5, this embodiment defines the locking part 4 as including two locking arms 403. One end of the two locking arms 403 is connected in an arc transition to form the first locking opening 401, and the other ends are arranged in parallel to form the second locking opening 402. Thus, the two locking arms 403 construct the locking part 4 into a U-shaped structure, with the bottom being the first locking opening 401, which is used to fit the outer surface of the rod body 1. The second locking opening 402 is located above the first locking opening 401 so that the movable handle 2 can rotate without obstruction after being installed therein.

[0041] like Figures 3-6As shown, in one embodiment, two limiting flanges 6 are provided correspondingly on the two locking arms 403. The two limiting flanges 6 are located on the opposite end faces of the first locking port 401 to form a locking space for the rod body 1. Specifically, in order to improve the stability of the rod body 1 at the locking position, this embodiment provides two limiting flanges 6 correspondingly on the opposite end faces of the two locking arms 403. The two limiting flanges 6 form physical limits from both sides of the rod body 1 to firmly restrict the rod body 1 within the preset locking space. When the locking arms 403 retract, the limiting flanges 6 act as fulcrums to convert the elastic deformation of the locking arms 403 into a stronger radial clamping force on the rod body 1, thereby improving the stability of the rod body 1. Of course, the limiting flanges 6 can also provide physical stops for the deformation of the locking arms 403, and when the mating part 5 applies a locking force, it can prevent the locking arms 403 from breaking due to excessive contraction. In addition, since the limiting flange 6 is located at the locking arm 403, it can move together with the locking arm 403. When the mating part 5 is in the initial position, the clamping force formed by the limiting flange 6 is minimal, so as to adjust the height and angle of the movable handle 2. When the mating part 5 is in the fixed position, the clamping force formed by the limiting flange 6 is maximum, which is used to restrict the movement of the movable handle 2.

[0042] Furthermore, such as Figure 5 As shown, in one embodiment, the limiting flange 6 includes a first arc-shaped segment 601 and a second arc-shaped segment 602 connected together. The concave side of the first arc-shaped segment 601 is disposed away from the first locking port 401, and the second arc-shaped segment 602 is used to be tangential to or separate from the surface of the rod body 1. Specifically, in order to better clamp or release the rod body 1, this embodiment defines the limiting flange 6 as including a first arc-shaped segment 601 and a second arc-shaped segment 602 connected together. This allows the concave side of the limiting flange 6 to form a gap buffer with the locking arm 403 when the locking arm 403 is not under force. When the mating part 5 drives the locking arm 403 to retract, the above-mentioned area can preferentially undergo directional elastic bending, avoiding stress concentration at the root, improving the deformation capacity of the locking arm 403, making the retraction smoother, and dispersing stress to the entire arm body, reducing the risk of breakage. When the locking arm 403 retracts, the second arc-shaped segment 602 gradually changes from a non-contact state to a surface contact state, eventually completely fitting against the surface of the rod 1. This eliminates impact wear caused by hard collisions. Simultaneously, the contact area increases linearly with the locking force, resulting in more stable clamping and completely suppressing the radial micro-displacement of the rod 1. Furthermore, the second arc-shaped segment 602 can be separated from the surface of the rod 1 to form an initial gap, allowing for deformation space to accommodate thermal expansion. That is, when the rod 1 expands, the initial gap shrinks, and the arc-shaped segment elastically compensates for the contact pressure; conversely, when the rod 1 contracts, the initial gap recovers, preventing over-constraint from causing structural cracking.

[0043] like Figure 3-6As shown, in one embodiment, the two locking arms 403 are provided with two sets of limiting teeth in a one-to-one correspondence, forming a locking space for the movable handle 2. Each set of limiting teeth includes multiple limiting teeth 7 arranged at intervals along the rotation direction of the movable handle 2. The movable handle 2 is provided with multiple limiting slots 8 for engaging or disengaging with the multiple limiting teeth 7 in a one-to-one correspondence. Specifically, to restrict the movable handle 2 to any adjusted angle, this embodiment provides two sets of limiting teeth on the opposite end faces of the two locking arms 403. Each set of limiting teeth includes multiple limiting teeth 7 arranged in a circumferential array, and multiple limiting slots 8 are provided at the movable handle 2. Thus, when the mating part 5 is in the initial position, the limiting teeth 7 disengage from the limiting slots 8, allowing the movable handle 2 to rotate freely under external force. When the mating part 5 moves to the fixed position, the opening size of the second locking port 402 gradually decreases, causing the limiting teeth 7 to engage with the limiting slots 8. This clamps the movable handle 2 within the second locking port 402 and positions it at the adjusted angle. Preferably, to enable the limiting teeth 7 to quickly engage or disengage with the limiting slots 8, such as... Figure 5 , Figure 6 As shown, the cross-sectional area of ​​the limiting tooth 7 gradually increases along the locking space direction away from the movable handle 2.

[0044] In one embodiment, the mating part 5 is configured as a bolt and a nut, and the locking part 4 has two through holes through which the bolt can pass. Specifically, in order to allow the locking part 4 to switch between an adjusting position and a locking position, the opening size of the first locking port 401 and the second locking port 402 of the locking part 4 can be changed by switching the position of the locking part 4; in this embodiment, by defining the mating part 5 as a bolt and a nut, two through holes are provided in the locking part 4 so that the bolt can pass through the through holes and engage with the nut. Figure 4 As shown, the through hole is located in the central area formed by the enclosing of multiple limiting teeth 7, so that the bolt can not only be used as an adjusting part to adjust the opening size of the second locking port 402, but also as a rotating shaft of the movable handle 2. For this purpose, a through hole is provided at the movable handle 2 for the bolt to pass through, so that tightening or loosening the nut can lock or unlock the movable handle 2.

[0045] like Figures 3-7As shown, in one embodiment, one of the rod body 1 and the first locking port 401 is provided with a guide groove 9, and the other is provided with a guide protrusion 10. The guide protrusion 10 is slidably disposed in the guide groove 9, and its sliding direction is consistent with the sliding direction of the locking part 4. Specifically, in order to constrain the sliding direction of the locking part 4, this embodiment provides a guide protrusion 10 in the locking part 4 and a guide groove 9 is provided in the rod body 1 along its length direction, so that the guide protrusion 10 can be slidably disposed in the guide groove 9, so that the locking part 4 can only slide along the length of the rod body 1 and does not rotate axially.

[0046] This embodiment also provides a mini-tiller, including the dual-handle structure for the mini-tiller described above. The specific structure of the dual-handle structure for the mini-tiller is as described in the above embodiment. Since this mini-tiller adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dual-handle structure for a micro-tiller, characterized in that, include: Rod body; Two handles are spaced apart from the rod body, and at least one of the two handles is a movable handle and is rotatably connected to the rod body; A locking assembly for engaging the movable handle to the rod body and allowing adjustment of the angle of the movable handle relative to the rod body; The locking component includes: The locking part has a first locking port and a second locking port, the rod body is slidably placed in the first locking port, and the movable handle is rotatably placed in the second locking port; The engaging part engages with the locking part for locking and has an initial position and a fixed position. When the engaging part is in the initial position, the locking part is in an adjustment position to unlock the rod and the movable handle. Under the action of external force, the locking part slides relative to the rod and / or the movable handle rotates relative to the rod. When the engaging part moves to the fixed position, the locking part will simultaneously reduce the opening size of the first locking port and the second locking port due to the movement of the engaging part, so that the locking part is in a locked position that can simultaneously restrict the movement of the rod and the movable handle.

2. The dual-handle structure for a micro-tiller as described in claim 1, characterized in that, The locking part is used to undergo elastic deformation and / or plastic deformation as the mating part moves.

3. The dual-handle structure for a micro-tiller as described in claim 1, characterized in that, The locking part includes two locking arms. One end of the two locking arms is connected to form the first locking opening, and the other ends of the two arms are arranged in parallel to form the second locking opening.

4. The dual-handle structure for a micro-tiller as described in claim 3, characterized in that, Each of the two locking arms is provided with a corresponding limiting flange, which is located on the opposite end face of the first locking port to form the locking space of the rod.

5. The dual-handle structure for a micro-tiller as described in claim 4, characterized in that, The limiting flange includes a first arc-shaped segment and a second arc-shaped segment connected together. The concave side of the first arc-shaped segment is disposed away from the first locking port, and the second arc-shaped segment is used to be tangent to or separate from the surface of the rod body.

6. The dual-handle structure for a micro-tiller as described in claim 3, characterized in that, The two locking arms are each provided with two sets of limiting teeth, forming a locking space for the movable handle. Each set of limiting teeth includes multiple limiting teeth spaced apart along the rotation direction of the movable handle. The movable handle is provided with multiple limiting slots for engaging or disengaging with the multiple limiting teeth in a one-to-one correspondence.

7. The dual-handle structure for a micro-tiller as described in claim 6, characterized in that, The cross-sectional area of ​​the limiting teeth gradually increases along the locking space direction away from the movable handle.

8. A dual-handle structure for a micro-tiller as described in any one of claims 1-7, characterized in that, The mating part is configured as a bolt and a nut, and the locking part is provided with two through holes through which the bolt can pass.

9. A dual-handle structure for a micro-tiller as described in claim 1, characterized in that, One of the rod body and the first locking port is provided with a guide groove, and the other is provided with a guide protrusion. The guide protrusion is slidably disposed in the guide groove, and its sliding direction is consistent with the sliding direction of the locking part.

10. A micro-tiller, characterized in that, Includes the dual-handle structure for a micro-tiller as described in any one of claims 1-9.

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