Quick-release rod structure for mini-tiller and mini-tiller

Abstract

The utility model discloses a quick release rod piece structure for micro tiller, include: a plurality of rod body, a plurality of rod body are inserted in proper order, and the first locking subassembly or second locking subassembly is connected between two adjacent rod body, so that two adjacent rod body can detachable connection. The utility model has solved the problem of big storage space, rod piece easy to loosen or disintegration in the prior art.

Description

Technical Field

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

[0002] Mini-tiller push rods come in two types: one-piece and two-piece. While one-piece push rods avoid the problem of loose connections, their non-separable, integral structure results in excessive space requirements during transport, limited stacking height during storage, and high maintenance costs due to the need for complete replacement after damage. Two-piece push rods, with their threaded segmented connections, improve portability, but the vibrating operation of the mini-tiller can cause the threads to gradually loosen and reverse, leading to push rod loosening or disintegration. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a quick-release rod structure for micro-tillers, so as to solve the problems of large storage space and easy loosening or disintegration of rods in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A quick-release rod structure for a micro-tiller includes: multiple rods, which are sequentially inserted into each other, and adjacent rods are connected by a first locking component or a second locking component to allow for detachable connection between adjacent rods;

[0006] The first locking assembly includes: a first limiting part and a first engaging part. The first limiting part is provided with two limiting segments spaced apart for passing through different positions of two adjacent rods, and one of the limiting segments is detachably connected to the first engaging part to restrict the movement of the two adjacent rods along their axial and radial directions.

[0007] The second locking assembly includes a second limiting part, a second engaging part, and a stop part. The second limiting part is disposed in one of the two adjacent rods and has a socket for inserting the other rod. The socket can deform under external force to engage the rod inside. The second engaging part is configured to keep the socket deformed by external force. The stop part is disposed between the second limiting part and the second engaging part to prevent one of the two adjacent rods from disengaging from the other.

[0008] Furthermore, two through holes are provided at intervals at the connection between two adjacent rods, and the two limiting segments are respectively inserted through the two through holes.

[0009] Furthermore, the two through holes are spaced apart along the axial direction of the rod.

[0010] Furthermore, the lengths of the two limiting segments are not equal. The limiting segment with the relatively longer length is defined as the long limiting segment, and the other is the short limiting segment. The long limiting segment extends beyond the rod body and is threadedly connected to the first mating part. The short limiting segment is located in the corresponding through hole.

[0011] Furthermore, the second limiting part is provided with a plurality of openings at intervals along the circumference of the insertion hole. The plurality of openings are connected to the insertion hole and can divide the second limiting part into a plurality of limiting blocks. The limiting blocks are used to undergo elastic or plastic deformation as the rod is inserted.

[0012] Furthermore, the stop portion includes a stop ring and a plurality of stop pieces connected together. The stop ring is located between the second limiting portion and the second mating portion, and the plurality of stop pieces are respectively inserted into the corresponding openings.

[0013] Furthermore, the stop ring has a first stop end face formed at one end opposite to the stop piece, and the second mating part has a second stop end face formed. The first stop end face and the second stop end face abut or separate to press the stop piece into the opening, or to allow the stop piece to naturally dislodge from the opening.

[0014] Furthermore, the number of stop plates is less than or equal to the number of openings; and / or

[0015] The stop plate and / or the second limiting part are provided with an indicator arrow, which points to the installation or removal direction of the stop plate.

[0016] Furthermore, the second limiting part is threadedly connected to the second mating part.

[0017] A mini-tiller, including: the quick-release lever structure for a mini-tiller described above.

[0018] Compared with the prior art, this utility model has the following advantages: multiple rods are sequentially inserted to form a split structure, and adjacent rods are connected by a first locking component or a second locking component, making them detachable and portable; at the same time, the two limiting segments of the first limiting part are respectively inserted at different positions of the two rods to form two limiting points, and are locked by the first mating part, which not only restricts the axial and radial movement of the rods, but also prevents the rods from loosening or disintegrating in a vibration environment; furthermore, the limiting cooperation between the second limiting part and the second mating part enables quick installation or quick disassembly of the two rods, and the stop part provided therebetween can prevent the second mating part from disengaging from the second limiting part, thereby using the second limiting part and the second mating part to limit and lock the two rods in a vibration environment, preventing them from separating and causing the rods to loosen or disintegrate. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a quick-release lever structure for a micro-tiller according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of a quick-release lever structure for a micro-tiller according to an embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the first locking component according to an embodiment of the present invention;

[0022] Figure 4 This is a partial exploded view of the second locking component according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the second limiting part according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the stop portion according to an embodiment of the present utility model.

[0025] The reference numerals in the accompanying drawings include:

[0026] 1. The first rod;

[0027] 2. The second rod;

[0028] 3. The third rod;

[0029] 4. First locking assembly; 41. First limiting part; 411. Limiting segment; 42. First mating part;

[0030] 5. Second locking assembly; 51. Second limiting part; 511. Insertion hole; 512. Opening; 513. Limiting block; 52. Second mating part; 521. Second stop end face; 53. Stop part; 531. Stop ring; 532. Stop piece; 533. First stop end face;

[0031] 6. Via;

[0032] 7. Indicator arrow. Detailed Implementation

[0033] The present invention will be further described in detail below through specific embodiments:

[0034] In the embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the quick-release rod structure for a micro-tiller includes: multiple rods, which are sequentially inserted into each other, and adjacent rods are connected by a first locking component 4 or a second locking component 5 to make the adjacent rods detachably connected;

[0035] The first locking assembly 4 includes: a first limiting part 41 and a first engaging part 42. The first limiting part 41 is provided with two limiting segments 411 spaced apart for passing through different positions of two adjacent rods, and one of the limiting segments 411 is detachably connected to the first engaging part 42 to restrict the movement of the two adjacent rods along their axial and radial directions.

[0036] The second locking assembly 5 includes a second limiting part 51, a second engaging part 52, and a stop part 53. The second limiting part 51 is disposed in one of the two adjacent rods and has a socket 511 for inserting the other rod. The socket 511 can deform under external force to engage the rod inside. The second engaging part 52 is configured to keep the socket 511 deformed by external force. The stop part 53 is disposed between the second limiting part 51 and the second engaging part 52 to prevent one of the two adjacent rods from coming out of the other.

[0037] Specifically, in this embodiment of the invention, the plurality of rods includes a top rod, a bottom rod, and at least one intermediate rod located between the top rod and the bottom rod, arranged sequentially in a vertical direction; wherein, the bottom rod is connected to a housing, which can accommodate a power structure, a cutter head structure, etc. Figure 1 As shown, the quick-release link structure for a micro-tiller in this embodiment includes three links: a top link, a middle link, and a bottom link. The top link, middle link, and bottom link are defined as link 1, link 2, and link 3, respectively; that is, along the vertical direction, the three links are link 1, link 2, and link 3. Thus, by setting the link structure as a three-segment design, and connecting adjacent links using a plug-in method, quick connection between the links can be achieved.

[0038] Furthermore, adjacent rods are connected by a first locking assembly 4 or a second locking assembly 5, thereby achieving a detachable connection between the two rods and improving the overall portability of the rod assembly. Figure 1 , Figure 2As shown, in this embodiment, the first rod 1 and the second rod 2 are connected by the first locking assembly 4, and the second rod 2 and the third rod 3 are connected by the second locking assembly 5. This modular installation method allows for quick assembly and disassembly of the rods. Furthermore, since the first rod 1 is located at the end of the entire rod assembly, and the third rod 3 is positioned close to the power structure and cutter head structure, the high-frequency impact vibrations generated during operation of these structures will first act on the third rod 3. After being buffered by the second rod 2 and transmitted to the first rod 1, the vibration intensity is weakened, resulting in a much lower vibration intensity at the first rod 1 than at the second rod 2 and the third rod 3. Therefore, the relatively weaker anti-interference first locking part is positioned between the first rod 1 and the second rod 2, which are far from the vibration source, while the stronger anti-interference second locking part is positioned between the second rod 2 and the third rod 3, which are closer to the vibration source.

[0039] Specifically, such as Figures 1-3 As shown, the first locking assembly 4 includes a first limiting part 41 and a first mating part 42. The first limiting part 41 has two limiting segments 411 spaced apart, and the first mating part 42 is detachably connected to one of the two limiting segments 411. During installation, the second rod 2 is inserted into the first rod 1, so that the overlapping part of the two forms a connecting part. The two limiting segments 411 are respectively inserted at different positions of this connecting part, thus forming two limiting points. The first mating part 42 is then connected to one of the limiting segments 411 to connect and restrict the axial and radial rotation of the first rod 1 and the second rod 2. Furthermore, the dual-point limiting method can effectively prevent the rod from separating or disintegrating due to vibration; at the same time, a single first mating part 42 can simultaneously restrict the movement of the two limiting segments 411. Disassembling the first mating part 42 releases the first limiting part 41, resulting in high assembly and disassembly efficiency and ease of operation.

[0040] like Figure 1 , Figure 2 and Figure 4As shown, the second locking assembly 5 includes a second limiting part 51, a second mating part 52, and a locking part. The second limiting part 51 and the second mating part 52 are respectively installed at the third rod 3 and the second rod 2, and the second mating part 52 can move relative to the second limiting part 51, so that the two can be detachably connected. Furthermore, since the second rod 2 needs to be inserted into the third rod 3, the second limiting part 51 is provided with an insertion hole 511 along its axial direction for the second rod 2 to be inserted. In order to use the second limiting part 51 to limit the second rod 2 at the insertion hole 511, the insertion hole 511 is configured to deform under the action of external force, thereby clamping the second rod 2 inside. In addition, in order to keep the insertion hole 511 deformable and prevent the second rod 2 from disengaging, the aforementioned second mating part 52 can keep the insertion hole 511 deformable under the action of external force. Thus, through the limiting engagement of the second limiting part 51 and the second mating part 52, the second rod 2 can be clamped in the insertion hole 511; conversely, when the limiting engagement of the second limiting part 51 and the second mating part 52 is released, the second rod 2 can be disengaged from the insertion hole 511, thereby realizing the detachable connection between the second rod 2 and the third rod 3.

[0041] Furthermore, since the second locking component 5 is closer to the vibration source, to prevent the second mating part 52 from gradually moving away from the second limiting part 51 due to vibration, thus causing the second rod 2 and the third rod 3 to gradually disengage and separate, this embodiment provides a stop part 53 between the second limiting part 51 and the second mating part 52. This stop part 53 prevents the second mating part 52 from disengaging from the second limiting part 51, ensuring that the effective connection between the second limiting part 51 and the second mating part 52, as well as between the second rod 2 and the third rod 3, is maintained even in a vibration environment.

[0042] This embodiment uses multiple rods to form a portable, modular design. The rods are locked together by a first locking component 4 or a second locking component 5, which not only enables detachable connection between the rods but also maintains effective connection between the rods even under vibration. Each independent locking component can be adaptively selected and installed according to the vibration intensity.

[0043] like Figure 3 As shown, in one embodiment, two through holes 6 are spaced apart at the connection point of two adjacent rods, and two limiting segments 411 are respectively inserted through the two through holes 6. Specifically, in order to insert the limiting segments 411 through the connection point of the two rods, this embodiment provides two through holes 6 spaced apart at the connection point, so that the two limiting segments 411 are inserted one-to-one through the two through holes 6, thereby restricting the axial movement and radial rotation of one of the two rods relative to the other.

[0044] Preferably, the two through holes 6 are spaced apart along the axial direction of the rod. In this embodiment, since the rod is a hollow cylindrical structure, in order to allow the two limiting segments 411 to be smoothly and linearly inserted into the corresponding through holes 6, and to simplify the structure of the first limiting part 41, the two through holes 6 are spaced apart along the axial direction of the rod, so that the two limiting segments 411 can be arranged perpendicular to the axis of the rod.

[0045] like Figure 2 , Figure 3 As shown, in one embodiment, the two limiting segments 411 are of unequal length. The longer limiting segment 411 is defined as the long limiting segment, and the other as the short limiting segment. The long limiting segment extends beyond the rod body and is threadedly connected to the first mating part 42. The short limiting segment is located within the corresponding through hole 6. Specifically, for ease of installation, the two limiting segments 411 in this embodiment are arranged as one long and one short. The longer limiting segment 411 passes through the hole 6 through the rod body and is threadedly connected to the first mating part 42. Reversing the first mating part 42 tightens or loosens the first locking assembly 4. Furthermore, since the first locking assembly 4 is located between the first rod body 1 and the second rod body 2, away from the vibration source, the first mating part 42 is less likely to detach from the limiting segment 411. Of course, the first mating part 42 is equipped with a corresponding handle, allowing for tool-free installation. The relatively short limiting section 411 is retained at the through hole 6, and its end does not protrude beyond the rod body. On the one hand, this avoids interfering with the rotation of the first mating part 42, and on the other hand, it ensures the smoothness of the rod body.

[0046] like Figure 5 As shown, in one embodiment, the second limiting part 51 is provided with a plurality of openings 512 spaced apart along the circumference of the insertion hole 511. The plurality of openings 512 are connected to the insertion hole 511 and can divide the second limiting part 51 into a plurality of limiting blocks 513. The limiting blocks 513 are used to undergo elastic or plastic deformation as the rod is inserted. Specifically, in order to enable the insertion hole to deform and clamp the second rod 2, the second limiting part 51 in this embodiment is provided with a plurality of openings 512. The plurality of openings 512 are provided at equal intervals along the circumference of the insertion hole 511 and are connected to the insertion hole 511. The opening 512 includes a closed end and an open end arranged opposite to each other. The closed end of the opening 512 extends toward the direction of the third rod 3, and its open end extends toward the direction of the second rod 2 and cuts off the end face of the second limiting part 51. Thus, by using the multiple openings 512, the second limiting part 51 can be divided into multiple limiting blocks 513, and the multiple limiting blocks 513 surround to form an insertion hole 511. The limiting blocks 513 can expand the insertion hole 511 as the second rod 2 is inserted, thereby causing the multiple limiting blocks 513 to collectively cover the outer surface of the second rod 2.

[0047] Furthermore, such as Figure 4 , Figure 6 As shown, in one embodiment, the stop portion 53 includes a stop ring 531 and a plurality of stop plates 532 connected to each other. The stop ring 531 is located between the second limiting portion 51 and the second mating portion 52, and the plurality of stop plates 532 are respectively inserted into the corresponding openings 512. Specifically, in order to keep the second limiting portion 51 and the second mating portion 52 in a limited mating state to avoid loosening in a vibration environment, this embodiment defines the stop portion 53 as including a stop ring 531 and a plurality of stop plates 532. The stop ring 531 is arranged around the surface of the second rod body 2, and the plurality of stop plates 532 are arranged at equal intervals at the stop ring 531 and can be inserted into the corresponding openings 512. Thus, the stop plates 532 can be used to increase the contact area between the second limiting portion 51 and the second mating portion 52, and the length of the stop plates 532 can be used to compensate for the displacement caused by vibration.

[0048] Furthermore, such as Figure 4 , Figure 6 As shown, in one embodiment, the stop ring 531 has a first stop end face 533 formed at the end opposite to the stop piece 532, and the second mating part 52 has a second stop end face 521. The first stop end face 533 abuts against or separates from the second stop end face 521 to press the stop piece 532 into the opening 512, or to allow the stop piece 532 to naturally disengage from the opening 512. Specifically, to further restrict the second mating part 52 from disengaging from the second limiting part 51, this embodiment provides a first stop end face 533 at the end of the stop ring 531 opposite to the stop piece 532, and a second stop end face 521 at the end of the second mating part 52 opposite to the second limiting part 51. When the second limiting part 51 and the second mating part 52 are in a limiting engagement, the first stop end face 533 abuts against the second stop end face 521, thus limiting the stop piece 532 within the corresponding opening 512. Figure 6 As shown, the surface of the stop ring 531 is provided with a through hole for the screw to pass through and fix it to the rod body; this can further prevent the second locking assembly 5 from loosening or disintegrating in a vibrating environment.

[0049] like Figures 4-6 As shown, in one embodiment, the number of stop pieces 532 is less than or equal to the number of openings 512. In this embodiment, two stop pieces 532 are provided, and four openings 512 are provided, so that the stop pieces 532 can be inserted into any set of oppositely arranged openings 512. And, as... Figure 5 , Figure 6As shown, indicator arrows 7 are provided at both the stop plate 532 and the second limiting part 51. The two indicator arrows 7 are arranged downwards and downwards respectively to provide the insertion and removal direction of the stop plate 532. The foolproof design makes it easier to install.

[0050] like Figure 4 , Figure 5 As shown, in one embodiment, the second limiting part 51 and the second mating part 52 are threadedly connected. Specifically, in order to achieve a detachable connection between the second limiting part 51 and the second mating part 52, this embodiment provides an external thread structure and an internal thread structure for the second limiting part 51 and the second mating part 52, respectively, and achieves the threaded connection between the second limiting part 51 and the second mating part 52 through the cooperation of the internal and external thread structures. Furthermore, the threaded engagement relationship allows the second mating part 52 to hold the insertion hole 511 in a deformed state.

[0051] This embodiment also provides a mini-tiller, including the quick-release rod structure for the mini-tiller described above. The specific structure of the quick-release rod 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.

[0052] 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 quick-release lever structure for a micro-tiller, characterized in that, include: Multiple rods are inserted sequentially, and adjacent rods are connected by a first locking assembly or a second locking assembly so that adjacent rods can be detachably connected. The first locking assembly includes: a first limiting part and a first engaging part. The first limiting part is provided with two limiting segments spaced apart for passing through different positions of two adjacent rods, and one of the limiting segments is detachably connected to the first engaging part to restrict the movement of the two adjacent rods along their axial and radial directions. The second locking assembly includes a second limiting part, a second engaging part, and a stop part. The second limiting part is disposed in one of the two adjacent rods and has a socket for inserting the other rod. The socket can deform under external force to engage the rod inside. The second engaging part is configured to keep the socket deformed by external force. The stop part is disposed between the second limiting part and the second engaging part to prevent one of the two adjacent rods from disengaging from the other.

2. The quick-release lever structure for a micro-tiller as described in claim 1, characterized in that, Two through holes are provided at intervals at the connection between two adjacent rods, and the two limiting segments are respectively inserted through the two through holes.

3. The quick-release lever structure for a micro-tiller as described in claim 2, characterized in that, The two through holes are spaced apart along the axial direction of the rod.

4. A quick-release lever structure for a micro-tiller as described in claim 2 or 3, characterized in that, The two limiting segments are of different lengths. The limiting segment with the relatively longer length is defined as the long limiting segment, and the other is the short limiting segment. The long limiting segment extends beyond the rod body and is threadedly connected to the first mating part. The short limiting segment is located in the corresponding through hole.

5. The quick-release lever structure for a micro-tiller as described in claim 1, characterized in that, The second limiting part is provided with a plurality of openings at intervals along the circumference of the insertion hole. The plurality of openings are connected to the insertion hole and can divide the second limiting part into a plurality of limiting blocks. The limiting blocks are used to undergo elastic deformation or plastic deformation as the rod is inserted.

6. The quick-release lever structure for a micro-tiller as described in claim 5, characterized in that, The stop portion includes a stop ring and a plurality of stop pieces connected together. The stop ring is located between the second limiting portion and the second mating portion, and the plurality of stop pieces are respectively inserted into the corresponding openings.

7. The quick-release lever structure for a micro-tiller as described in claim 6, characterized in that, The stop ring has a first stop end face at one end opposite to the stop piece, and the second mating part has a second stop end face. The first stop end face and the second stop end face abut or separate to press the stop piece into the opening, or to allow the stop piece to naturally dislodge from the opening.

8. A quick-release lever structure for a micro-tiller as described in claim 6, characterized in that, The number of stop plates is less than or equal to the number of openings; and / or The stop plate and / or the second limiting part are provided with an indicator arrow, which points to the installation or removal direction of the stop plate.

9. A quick-release lever structure for a micro-tiller as described in claim 1, characterized in that, The second limiting part is threadedly connected to the second mating part.

10. A micro-tiller, characterized in that, include: A quick-release lever structure for a micro-tiller as described in any one of claims 1-9.

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