Vertical pipe damping structure and mini-tiller

Abstract

The vertical pipe damping structure comprises a pulling body, the rear end of the pulling body is provided with a hanging groove which is transversely formed in a penetrating mode, and the upper side and the lower side of the hanging groove are provided with hinge holes which are vertically formed in a penetrating mode; a vertical pipe bottom plate is mounted on an upper side plate of the hanging groove, and a receding hole coaxially penetrating through the hinge hole is formed in the vertical pipe bottom plate; two hinged shaft seats which are coaxially arranged are arranged on the vertical pipe bottom plate, and the two hinged shaft seats are distributed on the two sides of the receding hole in the transverse direction and hinged to damping mechanisms capable of stretching and retracting in the axial direction respectively; the other end of the vertical pipe bottom plate extends towards the front end and is provided with a vertical pipe base, a vertical pipe arranged backwards is hinged to the upper end of the vertical pipe base, and the other ends of the two damping mechanisms are hinged to the middle of the vertical pipe. The device has the advantages of being reasonable in structural design, capable of effectively relieving vibration influence, beneficial to improving operation experience, capable of guaranteeing working efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a riser shock absorption structure and a micro-tiller. Background Technology

[0002] Mini tillers are powered by small diesel or gasoline engines and are widely applicable to dry land, paddy fields, and orchards in plains, mountains, and hills. Equipped with appropriate implements, mini tillers can perform water pumping, power generation, spraying, and sprinkler operations, and can also tow trailers for short-distance transport. The handlebars of mini tillers are fixed to the machine with a locking mechanism. Vibrations generated during operation are transmitted to the operator's hands, especially when tilling hard soil. Prolonged use can easily lead to numbness in the arms, posing a safety hazard and reducing continuous working time, thus affecting work efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a riser vibration damping mechanism and micro-tiller with a reasonable structural design that can effectively mitigate the impact of vibration, improve the operating experience, and ensure work efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A riser vibration damping structure includes a trailer body. The rear end of the trailer body has a horizontally through-hole for mounting, and the upper and lower sides of the mounting groove have vertically through-holes for hinges. A riser base plate is mounted on the upper side plate of the mounting groove. The riser base plate has clearance holes coaxially through the hinge holes. The riser base plate has two coaxially arranged hinge seats, which are laterally distributed on both sides of the clearance holes and are respectively hinged to axially extendable damping mechanisms. The other end of the riser base plate extends towards the front end and is fitted with a riser seat. The upper end of the riser seat is hinged to a rearward-facing riser. The other ends of the two damping mechanisms are both hinged to the middle of the riser.

[0006] In the above structure, since the two hinge seats are distributed laterally on both sides of the clearance hole, and the clearance hole and the hinge hole are coaxially arranged, the hinge seats are actually located on the upper side plate of the attachment slot. During use, the tow body is connected to the tiller's housing, and the handlebar is connected to the riser. Because the two ends of the shock-absorbing structure are hinged between the riser and the hinge seats respectively, the vibration generated during the tiller's operation is absorbed by the shock-absorbing mechanism through axial extension and contraction, thereby mitigating the impact of vibration, improving the operating experience, preventing numbness in the operator's arms, and helping to ensure work efficiency. At the same time, since there are two shock-absorbing mechanisms arranged side by side, vibrations on both sides of the handlebar can be mitigated by the shock-absorbing mechanism, improving the shock absorption effect. Furthermore, because the hinge seats are located on both sides of the clearance hole, the clearance hole and the hinge hole in the middle allow for easy installation and removal of the hinge shaft inserted into the hinge hole, making it easier to change attachments at the attachment slot.

[0007] Furthermore, the riser base includes two parallel and perpendicularly arranged riser plates on the riser base plate. The riser is arranged between the two riser plates via a hinge. A limit baffle is provided on the side of the two riser plates away from the shock absorption mechanism. The limit baffle is located at the top of the riser plate and is inclined toward the riser. The riser comes into contact with the limit baffle under the action of the shock absorption mechanism.

[0008] Furthermore, the end of the riser facing the riser base has a downwardly protruding limiting mechanism, and the two risers are provided with a back plate on the side away from the shock absorption mechanism. The limiting mechanism has a top rod extending toward the back plate, and there is a rotation gap between the end of the top rod and the back plate.

[0009] Furthermore, the limiting mechanism has a through threaded hole, the push rod is a screw installed in the threaded hole, and a locking nut is provided on the screw. The locking nut is located on the side of the limiting mechanism away from the back plate.

[0010] In this way, by cooperating with the screw and the threaded hole, the size of the rotation clearance can be adjusted, thereby adjusting the maximum vibration amplitude of the handrail.

[0011] Furthermore, a shock-absorbing rubber block is installed at the end of the top rod.

[0012] Furthermore, the riser base plate includes a vertically arranged support plate, the lower end of which is bent to form a base plate, and the upper end is bent in a direction away from the base plate to form a support plate; the base plate is installed on the towing body, and the clearance hole is provided on the base plate; the riser seat is vertically arranged on the support plate.

[0013] Furthermore, the shock absorption mechanism includes a telescopic cylinder body hinged to the hinge seat, a first bushing at the bottom of the telescopic cylinder body, the first bushing being hinged to the hinge seat; a second bushing at the telescopic end of the telescopic cylinder body, a shock absorption hinge support at the bottom surface of the riser, the second bushing being hinged to the shock absorption hinge support; a shock absorption spring is fitted on the upper part of the telescopic cylinder body, and both ends have coaxially arranged limiting plates, with both ends of the shock absorption spring abutting against the limiting plates respectively.

[0014] Furthermore, the damping hinge support includes a damping upper base plate that is laterally arranged on the bottom surface of the riser. The damping upper base plate has two hinge supports that are arranged toward the damping mechanism. The two hinge supports are coaxially arranged and distributed at both ends of the damping upper base plate. The second bushing is hinged to the hinge supports.

[0015] Furthermore, stiffening plates are welded between the two ends of the shock-absorbing upper base plate and the riser.

[0016] A mini-tiller, comprising the riser shock absorption structure as described above.

[0017] In summary, this utility model has the advantages of reasonable structural design, effective mitigation of vibration impact, improved user experience, and guaranteed work efficiency. Attached Figure Description

[0018] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the riser vibration damping structure in this embodiment.

[0019] Figure 3 This is a cross-sectional view of the riser vibration damping structure in this embodiment.

[0020] Figure 4 This is an exploded structural diagram of the riser vibration damping structure in this embodiment.

[0021] Figure 5 This is a cross-sectional view of the riser vibration damping structure in the exploded state of this embodiment. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments.

[0023] In practical implementation: such as Figures 1-5As shown, a riser vibration damping structure includes a tow body 1. The rear end of the tow body 1 has a horizontally through-hole hanging groove 11, and the upper and lower sides of the hanging groove 11 have vertically through-hole hinge holes 12. A riser base plate 2 is installed on the upper side plate of the hanging groove 11. The riser base plate 2 has a clearance hole 21 that is coaxially through-hole 12. The riser base plate 2 has two coaxially arranged hinge shaft seats 3, which are distributed horizontally on both sides of the clearance hole 21 and are respectively hinged to a shock-absorbing mechanism 6 that can be axially extended and retracted. The other end of the riser base plate 2 extends towards the front end and is equipped with a riser seat 4. The upper end of the riser seat 4 is hinged to a rearward-facing riser 5, and the other ends of the two shock-absorbing mechanisms 6 are both hinged to the middle position of the riser 5.

[0024] The riser base 4 includes two parallel and perpendicularly arranged riser plates 41 on the riser base plate 2. The riser 5 is hinged between the two riser plates 41. A limiting baffle 42 is provided on the side of the two riser plates 41 facing away from the shock absorption mechanism 6. The limiting baffle 42 is located at the top of the riser plates 41 and is inclined towards the riser 5. The riser 5 contacts the limiting baffle 42 under the action of the shock absorption mechanism 6. The end of the riser 5 facing the riser base 4 has a downwardly protruding limiting mechanism 7. A back plate is provided on the side of the two riser plates 41 facing away from the shock absorption mechanism 6. The limiting mechanism 7 has a top rod 71 extending towards the back plate. A rotational clearance exists between the end of the top rod 71 and the back plate. Figure 3 As shown.

[0025] In the above structure, since the two hinge seats are distributed laterally on both sides of the clearance hole, and the clearance hole and the hinge hole are coaxially arranged, the hinge seats are actually located on the upper side plate of the attachment slot. During use, the tow body is connected to the tiller's housing, and the handlebar is connected to the riser. Because the two ends of the shock-absorbing structure are hinged between the riser and the hinge seats respectively, the vibration generated during the tiller's operation is absorbed by the shock-absorbing mechanism through axial extension and contraction, thereby mitigating the impact of vibration, improving the operating experience, preventing numbness in the operator's arms, and helping to ensure work efficiency. At the same time, since there are two shock-absorbing mechanisms arranged side by side, vibrations on both sides of the handlebar can be mitigated by the shock-absorbing mechanism, improving the shock absorption effect. Furthermore, because the hinge seats are located on both sides of the clearance hole, the clearance hole and the hinge hole in the middle allow for easy installation and removal of the hinge shaft inserted into the hinge hole, making it easier to change attachments at the attachment slot.

[0026] like Figure 3 and Figure 5As shown, the limiting mechanism 7 has a through threaded hole, and the push rod 71 is a screw installed in the threaded hole. A locking nut 72 is provided on the screw, which is located on the side of the limiting mechanism 7 away from the back plate. A shock-absorbing rubber block is installed at the end of the push rod 71. In this way, the size of the rotation clearance can be adjusted by the cooperation between the screw and the threaded hole, thereby adjusting the maximum vibration amplitude of the handrail.

[0027] like Figure 1 and Figure 2 As shown, the riser base plate 2 includes a vertically arranged support plate 22, the lower end of the support plate 22 is bent to form a base plate 23, and the upper end is bent in a direction away from the base plate 23 to form a support plate 24; the base plate 23 is installed on the tow body 1, and the clearance hole 21 is provided on the base plate 23; the riser seat 4 is vertically arranged on the support plate 24.

[0028] The shock absorption mechanism 6 includes a telescopic cylinder 61 hinged to the hinge seat 3. A first bushing 62 is provided at the bottom of the telescopic cylinder 61, and the first bushing 62 is hinged to the hinge seat 3. A second bushing 64 is provided at the telescopic end of the telescopic cylinder 61. A shock-absorbing hinge support 8 is provided on the bottom surface of the riser 5, and the second bushing 64 is hinged to the shock-absorbing hinge support 8. A shock-absorbing spring 66 is fitted on the upper part of the telescopic cylinder 61, and both ends have coaxially arranged limiting plates 63. The two ends of the shock-absorbing spring 66 abut against the limiting plates 63 respectively. In specific implementations, the shock absorption mechanism 6 is a spring shock absorber, a hydraulic damping shock absorber, or a pneumatic damping shock absorber.

[0029] like Figure 2 and Figure 4 As shown, the damping hinge support 8 includes a damping upper support base plate 81 horizontally arranged on the bottom surface of the riser 5. The damping upper support base plate 81 has two hinge supports 82 arranged facing the damping mechanism 6. The two hinge supports 82 are coaxially arranged and distributed at both ends of the damping upper support base plate 81. The second bushing 64 is hinged to the hinge support 82. Stiffeners are welded between the two ends of the damping upper support base plate 81 and the riser 5.

[0030] 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 and improvements 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 riser vibration damping structure, comprising a trailer body (1), wherein the rear end of the trailer body (1) has a horizontally through-type mounting groove (11), and the upper and lower sides of the mounting groove (11) have vertically through-type hinge holes (12); characterized in that, A riser base plate (2) is installed on the upper side plate of the mounting groove (11). The riser base plate (2) has a clearance hole (21) that is coaxially connected to the hinge hole (12). The riser base plate (2) has two coaxially arranged hinge seats (3). The two hinge seats (3) are arranged laterally on both sides of the clearance hole (21) and are respectively hinged to a shock-absorbing mechanism (6) that can be axially extended and retracted. The other end of the riser base plate (2) extends toward the front end and is equipped with a riser seat (4). The upper end of the riser seat (4) is hinged to a riser (5) that is arranged backward. The other ends of the two shock-absorbing mechanisms (6) are both hinged to the middle position of the riser (5).

2. The riser vibration damping structure as described in claim 1, characterized in that, The riser base (4) includes two parallel and perpendicularly arranged riser plates (41) on the riser base plate (2). The riser (5) is arranged between the two riser plates (41) through a hinge. A limit baffle (42) is provided on the side of the two riser plates (41) away from the shock absorption mechanism (6). The limit baffle (42) is located at the top of the riser plate (41) and is inclined toward the riser (5). The riser (5) comes into contact with the limit baffle (42) under the action of the shock absorption mechanism (6).

3. The riser vibration damping structure as described in claim 2, characterized in that, The riser (5) has a downwardly protruding limiting mechanism (7) at one end facing the riser seat (4). The two risers (41) have back plates on the side away from the shock absorption mechanism (6). The limiting mechanism (7) has a top rod (71) extending toward the back plate. There is a rotation gap between the end of the top rod (71) and the back plate.

4. The riser vibration damping structure as described in claim 3, characterized in that, The limiting mechanism (7) has a through threaded hole, the push rod (71) is a screw installed on the threaded hole, and a locking nut (72) is provided on the screw. The locking nut (72) is located on the side of the limiting mechanism (7) away from the back plate.

5. The riser vibration damping structure as described in claim 3, characterized in that, The end of the top rod (71) is fitted with a shock-absorbing rubber block.

6. The riser vibration damping structure as described in claim 1, characterized in that, The riser base plate (2) includes a vertically arranged support plate (22), the lower end of the support plate (22) is bent to form a base plate (23), and the upper end is bent in a direction away from the base plate (23) to form a support plate (24); the base plate (23) is installed on the tow body (1), and the clearance hole (21) is provided on the base plate (23); the riser seat (4) is vertically arranged on the support plate (24).

7. The riser vibration damping structure as described in claim 1, characterized in that, The shock absorption mechanism (6) includes a telescopic cylinder (61) hinged to the hinge seat (3). The bottom of the telescopic cylinder (61) is provided with a first bushing (62), which is hinged to the hinge seat (3). The telescopic end of the telescopic cylinder (61) is provided with a second bushing (64). The bottom surface of the riser (5) is provided with a shock absorption hinge support (8), and the second bushing (64) is hinged to the shock absorption hinge support (8). The telescopic cylinder (61) is fitted with a shock absorption spring (66), and both ends are provided with coaxially arranged limiting plates (63). The two ends of the shock absorption spring (66) abut against the limiting plates (63).

8. The riser vibration damping structure as described in claim 7, characterized in that, The damping hinge support (8) includes a damping upper base plate (81) arranged laterally on the bottom surface of the riser (5). The damping upper base plate (81) has two hinge supports (82) arranged facing the damping mechanism (6). The two hinge supports (82) are coaxially arranged and distributed at both ends of the damping upper base plate (81). The second bushing (64) is hinged to the hinge support (82).

9. The riser vibration damping structure as described in claim 8, characterized in that, The two ends of the shock-absorbing upper base plate (81) are welded to the riser (5).

10. A micro-tiller, characterized in that, Includes the riser vibration damping structure as described in any one of claims 1 to 9.

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