An adjustable mudguard for a garden management machine

Abstract

The utility model provides a kind of adjustable mudguard of rural management machine, belong to rural management machine mudguard technical field, including main support, the both sides of main support are rotatably connected with cover plate, the end of main support and cover plate is uniformly connected with front baffle, the top of main support is rotatably connected with center pivot, first pivot and second pivot, center pivot is between first pivot and second pivot, the oblique upper side of main support is provided with fixed link, the top of first pivot and second pivot is uniformly connected with connecting rod, the central position of connecting rod length direction is fixedly connected with first pivot, the both ends of connecting rod are uniformly connected with first wire drawing, adjusting assembly is provided on the armrest of rural management machine, the utility model, by wire drawing and pulley system drive pivot group on main support generate rotation, and then via connecting rod and wire drawing drive both sides cover plate synchronous swing, the function of adjusting throwing angle is realized.

Description

Technical Field

[0001] This utility model relates to the field of mudguard technology for garden tillers, and more specifically, to an adjustable mudguard for garden tillers. Background Technology

[0002] A garden tiller is a multi-functional agricultural machine designed specifically for small-scale operations in orchards, vegetable gardens, greenhouses, and hilly slopes. It is known for its compact size, flexible steering, and strong adaptability. Typically equipped with a gasoline or diesel engine, it transmits power via belt or gearbox to drive rotary tillers for efficient soil cultivation. Its core function is rotary tillage, easily completing tasks such as turning, breaking up soil, and weeding, greatly reducing the labor intensity for farmers and improving production efficiency.

[0003] However, on many garden tillers, the mudguards are typically designed as fixed structures, with no angle adjustment capability. Because the mudguard angle is fixed, the soil-throwing behavior becomes monotonous, meaning the operator cannot adjust the throwing angle and range according to actual operational needs, limiting the machine's adaptability and operational quality under different working conditions.

[0004] How to design an adjustable mudguard for a garden management machine to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an adjustable mudguard for a garden management machine, which aims to improve the problems mentioned in the background.

[0006] This utility model is implemented as follows: This utility model provides an adjustable mudguard for a garden tiller, including a main support frame. Cover plates are rotatably connected to both sides of the main support frame. Front baffles are fixedly connected to the ends of both the main support frame and the cover plates. A central rotating shaft, a first rotating shaft, and a second rotating shaft are rotatably connected to the top of the main support frame. The central rotating shaft is located between the first and second rotating shafts. A fixed rod is provided diagonally above the main support frame. Connecting rods are fixedly connected to the tops of both the first and second rotating shafts. The center of the connecting rod along its length is fixedly connected to the first rotating shaft. First pull wires are fixedly connected to both ends of the connecting rods. The two ends of the two first pull wires are respectively fixedly connected to the cover plates on both sides of the main support frame. An adjustment component is provided on the handle of the garden tiller.

[0007] Preferably, the main support is fixed to the main frame of the garden tiller, the main support is located at the front of the garden tiller, and the length direction of the main support is consistent with the feed direction of the garden tiller.

[0008] Preferably, a first pull rope is provided between the central rotating shaft and the first rotating shaft. The two ends of the first pull rope are respectively fixedly connected to the outer walls of the central rotating shaft and the first rotating shaft. The two ends of the first pull rope are wound around the central rotating shaft and the first rotating shaft in opposite directions. A second pull rope is fixedly connected between the central rotating shaft and the second rotating shaft. The two ends of the second pull rope are wound around the central rotating shaft and the second rotating shaft in opposite directions. The ends of the first pull rope and the second pull rope wound around the central rotating shaft are wound in opposite directions. A second pull wire is fixedly wound around the outer wall of the central rotating shaft. The second pull wire extends obliquely upward to the handle of the garden management machine. A rope wheel is fixedly and rotatably connected to the top of the main support through a support.

[0009] Preferably, the adjustment assembly includes a fixed rod fixedly connected to the handle of the garden tiller, a ratchet is fixedly sleeved on the fixed rod, a handle and a pull rod are rotatably connected to the fixed rod, and the top of the pull rod is fixedly connected to a second pull wire.

[0010] Preferably, the handle is hollow, and a slide rod is slidably connected inside the handle. The slide rod has a groove, and a stop block is fixedly connected to the inner side wall of the handle corresponding to the groove.

[0011] Preferably, a spring is fixedly connected to the side wall of the stop, and the end of the spring is fixedly connected to the side wall of the slot.

[0012] Preferably, the end of the slide bar is engaged with a ratchet, and a pull ring is fixedly connected to the outer end of the slide bar.

[0013] The beneficial effects of this invention are as follows: When the operator turns the handle on the armrest, this action drives the rotating shaft assembly on the main support to rotate via a wire and rope system. This, in turn, causes the side panels to swing synchronously via a connecting rod and a rope. This action directly enables the adjustment of the soil-throwing angle according to working conditions, improving the machine's adaptability to different agronomic requirements. Furthermore, when the handle is turned, the slide rod fixed inside it engages with the ratchet at its end under the action of a spring, achieving unidirectional rotation and step-by-step positioning. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an adjustable mudguard cover for a garden management machine provided by an embodiment of this utility model; Figure 2 This is a schematic diagram of the distribution of the adjustable mudguard shaft of a garden management machine provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of an adjustable mudguard ratchet structure for a garden management machine provided by an embodiment of the present invention; Figure 4 This is a schematic diagram of an adjustable mudguard slide bar structure for a garden management machine provided by an embodiment of this utility model.

[0016] In the diagram: 1. Main support; 2. Cover plate; 3. Front baffle; 4. Central pivot; 5. First pivot; 6. Second pivot; 7. Fixing rod; 8. Connecting rod; 9. First pull wire; 11. First pull rope; 12. Second pull rope; 13. Second pull wire; 14. Rope wheel; 16. Ratchet; 17. Handle; 18. Pull rod; 19. Slide rod; 20. Groove; 21. Stop block; 22. Spring; 23. Pull ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example, refer to Figures 1-4 An adjustable mudguard for a garden tiller includes a main support 1, with cover plates 2 rotatably connected to both sides of the main support 1. Front baffles 3 are fixedly connected to the ends of both the main support 1 and the cover plates 2. A central rotating shaft 4, a first rotating shaft 5, and a second rotating shaft 6 are rotatably connected to the top of the main support 1. The central rotating shaft 4 is located between the first rotating shaft 5 and the second rotating shaft 6. A fixing rod 7 is provided diagonally above the main support 1. A connecting rod 8 is fixedly connected to the top of both the first rotating shaft 5 and the second rotating shaft 6. The center of the connecting rod 8 along its length is fixedly connected to the first rotating shaft 5. First pull wires 9 are fixedly connected to both ends of the connecting rod 8. The two ends of the two first pull wires 9 are respectively fixedly connected to the cover plates 2 on both sides of the main support 1. An adjustment component is provided on the handle of the garden tiller.

[0019] The main support 1 serves as the mounting base for the entire device. The hinged cover plates 2 on both sides are the actuators that directly influence the soil throwing angle. The front baffle 3 together form a semi-enclosed structure to guide the soil flow. When the first rotating shaft 5 and the second rotating shaft 6 rotate, the connecting rod 8 moves in a circular motion with the shafts, its two ends moving in an arc around the shafts. This arc motion is converted into tightening or releasing the first wire 9, thereby adjusting the opening angle of the cover plate 2.

[0020] The main support 1 is fixed to the main frame of the garden tiller. The main support 1 is located at the front of the garden tiller. The length direction of the main support 1 is consistent with the feed direction of the garden tiller. A first pull rope 11 is provided between the central rotating shaft 4 and the first rotating shaft 5. The two ends of the first pull rope 11 are fixedly connected to the outer walls of the central rotating shaft 4 and the first rotating shaft 5, respectively. The two ends of the first pull rope 11 are wound around the central rotating shaft 4 and the first rotating shaft 5 in opposite directions. A second pull rope 12 is fixedly connected between the central rotating shaft 4 and the second rotating shaft 6. The two ends of the second pull rope 12 are wound around the central rotating shaft 4 and the second rotating shaft 6 in opposite directions. The ends of the first pull rope 11 and the second pull rope 12 wound around the central rotating shaft 4 are wound in opposite directions. A second pull wire 13 is fixedly wound around the outer wall of the central rotating shaft 4. The second pull wire 13 extends obliquely upward to the handle of the garden tiller. A rope wheel 14 is fixedly and rotatably connected to the top of the main support 1 through the support.

[0021] When the central shaft 4 rotates in one direction, it drives the first shaft 5 to rotate in the same direction via the first pull rope 11, while simultaneously driving the second shaft 6 to rotate in the opposite direction via the second pull rope 12. The second pull wire 13, serving as the power transmission medium from the operating end to the execution end, has one end fixedly wound around the central shaft 4. After the transmission path direction is changed by the rope wheel 14, it extends to the adjustment component at the handrail, completing the power link from manual operation to the core transmission mechanism.

[0022] The adjustment assembly includes a fixed rod 7 fixedly connected to the handlebar of the garden tiller. A ratchet 16 is fixedly sleeved on the fixed rod 7. A handle 17 and a pull rod 18 are rotatably connected to the fixed rod 7. The top of the pull rod 18 is fixedly connected to a second pull wire 13. The fixed rod 7 serves as the mounting base for the entire assembly and is securely mounted on the handlebar for easy access by the operator. The handle 17 and the pull rod 18 can rotate around the fixed rod 7, together forming a composite operating lever system.

[0023] The handle 17 is hollow, and a slide rod 19 is slidably connected inside the handle 17. A slot 20 is provided on the slide rod 19. A stop block 21 is fixedly connected to the inner wall of the handle 17 corresponding to the slot 20. A spring 22 is fixedly connected to the side wall of the stop block 21. The end of the spring 22 is fixedly connected to the side wall of the slot 20. The spring 22 is pre-compressed and installed between the stop block 21 and the side wall of the slot 20. Its elastic force continuously acts on the slide rod 19, attempting to push the slide rod 19 in the direction that its end engages with the ratchet 16. This means that without external intervention, the system is in a locked state by default, with the end of the slide rod 19 engaged with the ratchet 16. A pull ring 23 is fixedly connected to the outer end of the slide rod 19.

[0024] The end of the slide bar 19 near the ratchet 16 is configured as a pawl. Under the preload of the spring 22, this end always tends to engage with the teeth of the ratchet 16, thus achieving one-way locking. The pull ring 23, as the human-machine interface of the unlocking mechanism, is directly fixed to the outer end of the slide bar 19. When the driver needs to adjust in the opposite direction, simply pull the pull ring 23 outward to overcome the elastic force of the spring 22, pull the pawl at the end of the slide bar 19 out of the teeth of the ratchet 16, and release the lock.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable mudguard for a garden tiller, comprising a main support (1), characterized in that, The main support (1) is rotatably connected to the two sides of the cover plate (2). The ends of the main support (1) and the cover plate (2) are fixedly connected to the front baffle (3). The top of the main support (1) is rotatably connected to the central rotating shaft (4), the first rotating shaft (5) and the second rotating shaft (6). The central rotating shaft (4) is located between the first rotating shaft (5) and the second rotating shaft (6). A fixed rod (7) is provided diagonally above the main support (1). The top of the first rotating shaft (5) and the second rotating shaft (6) are fixedly connected to the connecting rod (8). The center position of the connecting rod (8) in the length direction is fixedly connected to the first rotating shaft (5). The two ends of the connecting rod (8) are fixedly connected to the first wire (9). The two ends of the first wire (9) are respectively fixedly connected to the cover plate (2) on both sides of the main support (1). An adjustment component is provided on the handle of the garden management machine.

2. The adjustable mudguard of a garden tiller according to claim 1, characterized in that, The main support (1) is fixed on the main frame of the garden tiller. The main support (1) is located at the front of the garden tiller. The length direction of the main support (1) is consistent with the feed direction of the garden tiller.

3. The adjustable mudguard of a garden tiller according to claim 1, characterized in that, A first pull rope (11) is provided between the central rotating shaft (4) and the first rotating shaft (5). The two ends of the first pull rope (11) are fixedly connected to the outer walls of the central rotating shaft (4) and the first rotating shaft (5), respectively. The two ends of the first pull rope (11) are wound around the central rotating shaft (4) and the first rotating shaft (5) in opposite directions. A second pull rope (12) is fixedly connected between the central rotating shaft (4) and the second rotating shaft (6). The two ends of the second pull rope (12) are wound around the central rotating shaft (4) and the second rotating shaft (6) in opposite directions. The ends of the first pull rope (11) and the second pull rope (12) wound around the central rotating shaft (4) are wound in opposite directions. A second pull wire (13) is fixedly wound around the outer wall of the central rotating shaft (4). The second pull wire (13) extends obliquely upward to the handle of the garden management machine. The top of the main support (1) is fixedly rotatably connected to a rope wheel (14) through the support.

4. The adjustable mudguard of a garden tiller according to claim 1, characterized in that, The adjustment assembly includes a fixed rod (7) fixedly connected to the handle of the garden management machine. A ratchet (16) is fixedly sleeved on the fixed rod (7). A handle (17) and a pull rod (18) are rotatably connected to the fixed rod (7). The top of the pull rod (18) is fixedly connected to the second pull wire (13).

5. The adjustable mudguard of a garden tiller according to claim 4, characterized in that, The handle (17) is hollow, and a slide rod (19) is slidably connected inside the handle (17). A groove (20) is provided on the slide rod (19), and a stop block (21) is fixedly connected to the inner side wall of the handle (17) corresponding to the groove (20).

6. The adjustable mudguard of a garden tiller according to claim 5, characterized in that, A spring (22) is fixedly connected to the side wall of the stop (21), and the end of the spring (22) is fixedly connected to the side wall of the slot (20).

7. The adjustable mudguard of a garden tiller according to claim 6, characterized in that, The end of the slide bar (19) is engaged with the ratchet (16), and a pull ring (23) is fixedly connected to the outer end of the slide bar (19).

Images