Convenient and durable power switching device for mini-tiller

Abstract

A convenient and durable power switching device for a mini-tiller comprises a box body, a main transmission shaft, a connecting sleeve and a shifting mechanism. Mounting parts are symmetrically arranged on the box body left and right; the two ends of the main transmission shaft penetrate out of the box body and are rotationally connected with the box body through bearings. The connecting sleeve is arranged at the output end of the main transmission shaft; the shifting mechanism comprises an operating rod and a shifting piece, the lower end of the operating rod penetrates into the other mounting part from any mounting part and can rotate relative to the box body, the shifting piece is of a U-shaped structure formed by connecting two connecting rods and a shifting strip, the two connecting rods are arranged on the two sides of the connecting sleeve, and the upper ends of the two connecting rods are detachably and fixedly connected with the operating rod; the shifting bar can rotate relative to the connecting rod and can control the connecting sleeve to be combined with or separated from a power input shaft of the working mechanism after being driven by the operating rod; according to the utility model, the product structure is optimized, the mounting position of the operating rod can be determined according to the hand habit of a user, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to a convenient and durable power switching device for a micro-tillage machine. Background Art

[0002] Micro-tillage machines are a common tillage tool in the current agricultural equipment field. The use of micro-tillage machines has greatly improved the production efficiency of agricultural production, so the use of micro-tillage machines is becoming more and more widespread. However, the power switching devices for micro-tillage machines on the market are generally designed for right-handed users, which is not convenient for left-handed users to use, and the toggle parts on the power switching devices for micro-tillage machines are easy to wear and are not durable; therefore, the existing technology needs to be improved and developed. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the utility model provides a convenient and durable power switching device for a micro-tillage machine.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a convenient and durable power switching device for a micro-tillage machine, comprising a box body, a main transmission shaft, a connecting sleeve, and a toggle mechanism;

[0005] A box body, wherein a mounting portion is symmetrically arranged on the box body;

[0006] A main transmission shaft, both ends of which are arranged outside the housing and are rotatably connected to the housing through bearings;

[0007] A connecting sleeve, the connecting sleeve being arranged on the output end of the main transmission shaft;

[0008] The toggle mechanism includes an operating rod and a toggle piece. The lower end of the operating rod passes through any mounting part into the other mounting part and can rotate relative to the box body. The toggle piece is a U-shaped structure formed by two connecting rods and a toggle bar. The two connecting rods are arranged on both sides of the connecting sleeve, and the upper ends are detachably fixedly connected to the operating rod. The toggle bar can rotate relative to the connecting rod and can control the connection sleeve to be connected or separated from the power input shaft of the working mechanism after being driven by the operating rod.

[0009] Furthermore, a connecting portion is provided at the upper end of the connecting rod, and the connecting portion is sleeved on the outer wall of the operating rod and fixed by bolts.

[0010] Furthermore, a through hole is provided at the lower end of the connecting rod, one end of the shift bar is integrally provided with an extension portion outwardly, and the other end passes through the through holes on the connecting rods at both sides and is threadedly connected to the limiting member.

[0011] Furthermore, a limiting ring is provided on the side wall of the operating rod.

[0012] Furthermore, a spline and a mounting hole are respectively provided on the outer side wall of the output end of the main transmission shaft, a spring member and a limiting ball are provided in the mounting hole, a spline groove cooperating with the spline is provided on the inner wall of the connecting sleeve, limiting hole 1 and limiting hole 2 cooperating with the limiting ball are provided on the side wall, and an annular groove cooperating with the shifting bar is provided on the outer wall.

[0013] Furthermore, the box body is provided with a supporting portion between the two connecting rods, and the central axes of the supporting portion and the mounting portion are in the same straight line.

[0014] Furthermore, it also includes an auxiliary transmission shaft, both ends of which are arranged outside the box body and are rotatably connected to the box body through bearings. The central axes of the auxiliary transmission shaft and the main transmission shaft are perpendicular, and the two are connected through a transmission structure.

[0015] The beneficial effects of the utility model compared to the prior art are as follows: the utility model optimizes the product structure, the operating lever can determine the installation position according to the user's hand habits, which is convenient to use, and the U-shaped structure of the toggle member is evenly stressed, the toggle bar can rotate relative to the connecting rod, which can effectively reduce wear and tear, and the product is more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a plan view of a convenient and durable power switching device for a micro-tillage machine of the utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the main transmission shaft and connecting sleeve involved in this solution. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, a convenient and durable power switching device for a micro-tiller is shown in an embodiment of the utility model. The power switching device 1 includes a housing 2, a main transmission shaft 3 and a secondary transmission shaft 4. A mounting portion 21 is symmetrically provided on the housing 2. Both ends of the main transmission shaft 3 and the secondary transmission shaft 4 are passed through the housing 2 and are rotatably connected to the housing 2 through bearings. The central axes of the main transmission shaft 3 and the secondary transmission shaft 4 are perpendicular, and the two are connected through a transmission structure. The transmission structure adopts an existing structure, which can be a gear transmission or a worm gear transmission.

[0019] Furthermore, if Figure 1As shown, the power switching device 1 in this embodiment also includes a connecting sleeve 5 and a toggle mechanism 6. The connecting sleeve 5 is arranged on the output end of the main transmission shaft 3. The toggle mechanism 6 includes an operating rod 7 and a toggle member 8. The operating rod 7 can determine the installation position according to the user's hand habits. The lower end of the operating rod 7 passes through any mounting portion 21 to another mounting portion 21 and can rotate relative to the box body 2. The toggle member 8 is a U-shaped structure formed by two connecting rods 9 and a toggle bar 10. The two connecting rods 9 are arranged on both sides of the connecting sleeve 5, and the upper ends are detachably fixedly connected to the operating rod 7; when in use, the operating rod 7 drives the toggle member 8 to rotate, thereby allowing the toggle bar 10 to control the connection sleeve 5 to be combined or separated with the power input shaft of the working mechanism, and the toggle bar 10 can rotate relative to the connecting rod 9, which can effectively reduce the wear of the toggle bar 10 and make the product more durable.

[0020] Specifically, Figure 1 , Figure 2 As shown, the box body 2 in this embodiment is provided with a supporting portion 22 between the two connecting rods 9, and the central axes of the supporting portion 22 and the mounting portion 21 are in the same straight line. A limiting ring 71 is provided on the side wall of the operating rod 7, and a connecting portion 91 is provided on the upper end of the connecting rod 9. The operating rod 7 passes through the mounting portion 21 on one side, and the two connecting rods 9 are respectively and successively sleeved on the outer wall of the operating rod 7 through the connecting portions 91 thereon until the side wall of the limiting ring 71 abuts against the side wall of the mounting portion 21, and the connecting portion 91 is fixed to the operating rod 7 by bolts; at the same time, a through hole is provided at the lower end of the connecting rod 9, and one end of the shift bar 10 is integrally provided with an extension portion 101 outwardly, and the other end passes through the through holes on the connecting rods 9 on both sides and is threadedly connected with the limiting member 11, and the outer diameters of the extension portion 101 and the limiting member 11 are larger than the diameter of the through hole.

[0021] In addition, if Figure 2 As shown, in this embodiment, splines 31 are respectively provided on the outer wall of the output end of the main transmission shaft 3, and a spline groove 51 is provided on the inner wall of the connecting sleeve 5, and the spline groove 51 cooperates with the spline 31, so that the connecting sleeve 5 can move forward and backward along the spline 31; a mounting hole 32 is provided on the outer wall of the output end of the main transmission shaft 3, and a spring member 12 and a limiting ball 13 are provided in the mounting hole 32, a limiting hole 1 52 and a limiting hole 2 53 are provided on the side wall of the connecting sleeve 5, and an annular groove 54 is provided on the outer wall, and a shift bar 10 is cooperated and arranged in the annular groove 54, and is used to shift the connecting sleeve 5 to move forward and backward along the spline 31. When the connecting sleeve 5 moves forward to combine with the power input shaft of the working mechanism, the limiting ball 13 is driven by the spring force of the spring member 12 to be clamped on the limiting hole 2 53, and when the connecting sleeve 5 moves backward to be separated from the power input shaft of the working mechanism, the limiting ball 13 is driven by the spring force of the spring member 12 to be clamped on the limiting hole 2 52.

[0022] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A convenient and durable power switching device for a micro-tiller, characterized in that, include: A box body (2), wherein a mounting portion (21) is symmetrically provided on the box body (2); A main transmission shaft (3), wherein both ends of the main transmission shaft (3) extend out of the housing (2) and are rotatably connected to the housing (2) via bearings; A connecting sleeve (5), wherein the connecting sleeve (5) is arranged on the output end of the main transmission shaft (3); A toggle mechanism (6), the toggle mechanism (6) comprising an operating rod (7) and a toggle member (8), the lower end of the operating rod (7) passing through any mounting portion (21) into the other mounting portion (21) and being rotatable relative to the housing (2), the toggle member (8) being a U-shaped structure formed by connecting two connecting rods (9) and a toggle bar (10), the two connecting rods (9) being arranged on both sides of the connecting sleeve (5) and the upper ends of which are detachably fixedly connected to the operating rod (7), the toggle bar (10) being rotatable relative to the connecting rod (9) and being driven by the operating rod (7) to control the connection sleeve (5) to be coupled with or separated from the power input shaft of the working mechanism.

2. The power switching device for a convenient and durable micro-tiller according to claim 1, characterized in that: The upper end of the connecting rod (9) is provided with a connecting portion (91), and the connecting portion (91) is sleeved on the outer wall of the operating rod (7) and fixed by bolts.

3. A power switching device for a convenient and durable micro-tiller according to claim 1 or 2, characterized in that: A through hole is provided at the lower end of the connecting rod (9); one end of the shifting bar (10) is integrally provided with an extension portion (101) extending outwardly; the other end passes through the through holes on the connecting rods (9) on both sides and is threadedly connected to the stopper (11).

4. A power switching device for a convenient and durable micro-tiller according to claim 1, characterized in that: A limiting ring (71) is provided on the side wall of the operating rod (7).

5. A power switching device for a convenient and durable micro-tiller according to claim 1, characterized in that: A spline (31) and a mounting hole (32) are respectively provided on the outer side wall of the output end of the main transmission shaft (3), a spring member (12) and a limiting ball (13) are provided in the mounting hole (32), a spline groove (51) cooperating with the spline (31) is provided on the inner wall of the connecting sleeve (5), a limiting hole 1 (52) and a limiting hole 2 (53) cooperating with the limiting ball (13) are provided on the side wall, and an annular groove (54) cooperating with the shifting bar (10) is provided on the outer wall.

6. The power switching device for a convenient and durable micro-tiller according to claim 1, characterized in that: The box body (2) is provided with a supporting portion (22) between the two connecting rods (9), and the central axes of the supporting portion (22) and the mounting portion (21) are in the same straight line.

7. A power switching device for a convenient and durable micro-tiller according to claim 1, characterized in that: It also comprises an auxiliary transmission shaft (4), the two ends of which are arranged outside the box body (2) and are rotatably connected to the box body (2) via bearings, the central axis of the auxiliary transmission shaft (4) and the main transmission shaft (3) are perpendicular, and the two are connected via a transmission structure.

Images