Mulching and rolling device for tomato cultivation

Abstract

The utility model discloses a mulching film laying and winding device for tomato cultivation belongs to agricultural machinery technical field. The device includes frame, wheel, handle, bottom plate and water tank installation space, be equipped with clamping assembly on the bottom plate, including runner, threaded rod, clamping arm, sliding block and sliding slot, threaded rod screw connection clamping arm, the sliding block of clamping arm bottom end slides in sliding slot, and the runner can drive clamping arm clamping mulching film roll rotation axis, be equipped with contraction component below frame, including connecting block, fixed column, sliding block, spring, connecting rod and compression wheel, and the sliding block sliding sleeve is established on fixed column and is with spring abuts, and connecting rod connects sliding block and compression wheel, and the bottom end of fixed column has limit ring. The utility model discloses through clamping assembly, has solved the problem of mulching film roll installation fixed inconvenience, and installation efficiency is high, through contraction component, and compression wheel can utilize spring elasticity and adapt to ground fluctuation, has solved the problem of laying quality unstable, and laying effect is good.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a device for laying and rolling up mulch film for tomato cultivation. Background Technology

[0002] Mulching technology is an important measure in modern tomato cultivation. Using mulch film laying devices can effectively improve work efficiency, while mulch film has multiple functions such as heat preservation, moisture retention, and weed control, which are crucial for improving tomato yield and quality.

[0003] Currently, portable or small-scale mulch film laying devices used in tomato cultivation are becoming increasingly diverse in structure. However, existing devices generally suffer from low overall efficiency and inconsistent laying quality when operating in the field.

[0004] This inefficiency is first reflected in the loading and unloading of the plastic film rolls. Many devices use simple inserts or bolts to fix the plastic film roll shafts. When replacing with new plastic film rolls, not only is alignment difficult, but the installation and locking process is also cumbersome and time-consuming, which seriously affects the efficiency of continuous operation.

[0005] Meanwhile, the instability in laying quality mainly stems from the poor adaptability of the equipment to complex terrain. It is difficult to ensure that the ridges or ground in tomato planting fields are absolutely flat. The compression wheels of traditional laying equipment often use rigid connections. When encountering clods or depressions, it is impossible to flexibly adjust the downward pressure, which can easily lead to the mulch film being damaged due to excessive tension or loosening due to insufficient compaction, greatly reducing the laying quality and the service life of the mulch film.

[0006] Therefore, this utility model proposes a mulch film laying and rolling device for tomato cultivation to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a tomato cultivation mulch film laying and winding device, which aims to improve the problems of inconvenient replacement and fixing of mulch film rolls, low installation efficiency, and unstable laying quality caused by the inability of the pressing roller to adapt to uneven ground during the mulch film laying process in the existing technology.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a tomato cultivation mulch film laying and rolling device, comprising: a frame, wheels rotatably mounted on the bottom of the frame, a handle fixedly connected to one side of the frame, a base plate fixedly connected to the frame, and an installation space for placing a water tank inside the frame. And a clamping assembly disposed above the base plate, the clamping assembly being used to clamp the rotating shaft on which the mulch roll is sleeved; And a retraction assembly disposed below the frame, the bottom end of the retraction assembly being rotatably connected to a compression wheel.

[0009] The clamping assembly includes a threaded rod that is horizontally rotatably connected to the upper surface of the base plate, a wheel that is fixedly connected to one end of the threaded rod, a clamping arm that is threadedly connected to the outer surface of the threaded rod, a slider that is fixedly connected to the bottom end of the clamping arm, a groove that is formed on the upper surface of the base plate, the slider that is slidably connected to the inside of the groove, and limit blocks that are fixedly connected to both ends of the threaded rod.

[0010] Furthermore, the shrinking assembly includes a connecting block fixedly connected to the frame, a fixing post vertically fixedly connected to the lower surface of the connecting block, a sliding block slidably sleeved on the outer surface of the fixing post, a spring sleeved on the outer surface of the fixing post and located between the connecting block and the sliding block, a connecting rod fixedly connected to the bottom surface of the sliding block, the bottom end of the connecting rod rotatably connected to the compression wheel, and a limiting ring fixedly connected to the bottom end of the fixing post.

[0011] Preferably, the water tank is detachably placed within the installation space, and the water tank is located below the base plate.

[0012] Preferably, there are two clamping arms, which are symmetrically distributed on both sides of the threaded rod; the outer surface of the threaded rod is provided with two sections of threads with opposite directions of rotation, and the two clamping arms are respectively threaded to the two sections of threads.

[0013] Preferably, the two ends of the rotating shaft are respectively rotatably engaged with the inner surfaces of the two clamping arms.

[0014] Preferably, the groove extends along the axial direction of the threaded rod, and the cross-section of the groove is T-shaped, and the shape of the slider is adapted to the groove.

[0015] Preferably, the connecting rod has a U-shaped structure, with its top end fixedly connected to both sides of the sliding block, and its bottom end rotatably connected to the compression wheel via a pin.

[0016] Preferably, the outer diameter of the limiting ring is larger than the diameter of the fixed post, and the outer diameter of the limiting ring is larger than the diameter of the central hole of the sliding block.

[0017] Preferably, the outer surface of the handle is covered with an anti-slip rubber sleeve, and the handle is fixedly connected to the frame by welding.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by first setting a clamping assembly that includes a reverse threaded rod, a slider and a groove, the problem of cumbersome operation, unstable fixing and difficulty in automatic centering of existing mulch film laying devices during mulch film roll replacement is solved. The technical effect of achieving synchronous movement of the two clamping arms and quick centering and clamping of the mulch film roll shaft by rotating the rotating wheel is achieved, which significantly improves the efficiency of mulch film replacement and the convenience of operation.

[0019] 2. In this utility model, by setting a shrinkage assembly consisting of a spring, a sliding block, and a fixed column to connect the compression wheel, the problem that the existing pressing mechanism is mostly rigidly connected and cannot adapt to the uneven ground of farmland, resulting in inconsistent tightness or easy damage of the mulch film is solved. The technical effect of the compression wheel being able to adaptively adjust its height according to the terrain undulation using the spring force, always maintaining effective compaction of the mulch film and buffering rigid impacts, is achieved, ensuring the flatness and tightness of the mulch film. Attached Figure Description

[0020] Figure 1 This is a perspective view of a tomato cultivation mulch film laying and rolling device proposed in this utility model; Figure 2 This is an exploded schematic diagram of the clamping component of a tomato cultivation mulch film laying and winding device proposed in this utility model; Figure 3 This is a cross-sectional schematic diagram of the clamping component of a tomato cultivation mulch film laying and winding device proposed in this utility model; Figure 4 This is a schematic cross-sectional view of the shrinkage component of a tomato cultivation mulch film laying and rolling device proposed in this utility model. Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0021] Legend: 1. Frame; 2. Water tank; 3. Handle; 4. Wheel; 5. Compression wheel; 6. Clamping assembly; 7. Shrink assembly; 8. Shaft; 9. Mulch film roll; 10. Base plate; 601. Clamping arm; 602. Slider; 603. Slide groove; 604. Limiting block; 605. Threaded rod; 606. Rotating wheel; 701. Connecting rod; 702. Sliding block; 703. Limiting ring; 704. Spring; 705. Fixing post; 706. Connecting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-5 This utility model provides an embodiment of a tomato cultivation mulch film laying and rolling device, which aims to solve the structural defects in the prior art, such as the inconvenience of installing and fixing the mulch film roll and the inability of the compression wheel to adapt to uneven ground during laying.

[0024] The tomato cultivation mulch film laying and rolling device includes a frame 1 and wheels 4 rotatably mounted on the bottom of the frame 1. The frame 1 serves as the mounting base and main support structure for the entire device, while the wheels 4 enable movement of the device. A handle 3 is fixedly connected to one side of the frame 1 for manual pushing of the device. The frame 1 has an internal installation space for placing a water tank 2. The water tank 2 can be detachably placed within the installation space, and it is located below the base plate 10 fixedly connected to the frame 1. The presence of the water tank 2 increases the overall weight of the device, improving stability during mulch film laying.

[0025] A clamping assembly 6 is provided on the upper surface of the base plate 10. The clamping assembly 6 is used to quickly fix and release the rotating shaft 8 sleeved on the mulch film roll 9. The clamping assembly 6 includes a threaded rod 605 that is horizontally rotatably connected to the upper surface of the base plate 10. One end of the threaded rod 605 extends to the outside of the base plate 10 and is fixedly connected to a rotating wheel 606. Rotating the rotating wheel 606 can drive the threaded rod 605 to rotate. The outer surface of the threaded rod 605 is threadedly connected to the clamping arm 601, which is used to clamp the rotating shaft 8. The bottom end of the clamping arm 601 is fixedly connected to the slider 602, which is slidably connected to the inside of the groove 603 opened on the base plate 10. The sliding fit between the slider 602 and the groove 603 restricts the rotational freedom of the clamping arm 601, so that the rotational motion of the threaded rod 605 is converted into the linear movement of the clamping arm 601 along the axial direction of the threaded rod 605. Limiting blocks 604 are fixedly connected to both ends of the threaded rod 605, which are used to prevent the clamping arm 601 from disengaging from both ends of the threaded rod 605 when moving axially.

[0026] A rotating shaft 8 is provided between the two clamping arms 601. A plastic film roll 9 is sleeved on the outer wall of the rotating shaft 8. The two ends of the rotating shaft 8 are respectively rotated and engaged with the inner side of the two clamping arms 601. When the clamping arms 601 move relative to each other, the rotating shaft 8 can be quickly clamped and released.

[0027] A retraction assembly 7 is installed below the frame 1. The retraction assembly 7 is used to achieve adaptive pressure adjustment of the compression wheel 5 on the ground. The retraction assembly 7 includes a connecting block 706 fixedly connected to the frame 1. A fixing post 705 is fixedly connected vertically downward to the lower surface of the connecting block 706. A sliding block 702 is slidably sleeved on the outer surface of the fixing post 705. A spring 704 is sleeved on the outer surface of the fixing post 705 between the connecting block 706 and the sliding block 702. The two ends of the spring 704 abut against the lower surface of the connecting block 706 and the upper surface of the sliding block 702, respectively. A connecting rod 701 is fixedly connected to the bottom surface of the sliding block 702. The bottom end of the connecting rod 701 is rotatably connected to the compression wheel 5. The compression wheel 5 is used to compact the ground film. A limit ring 703 is fixedly connected to the bottom end of the fixing post 705. The limit ring 703 is used to prevent the sliding block 702 from falling off the bottom end of the fixing post 705. The outer diameter of the limiting ring 703 is larger than the diameter of the fixed post 705, and the outer diameter of the limiting ring 703 is larger than the diameter of the central hole of the sliding block 702. The connecting rod 701 has a U-shaped structure, with its top end fixedly connected to both sides of the sliding block 702, and its bottom end rotatably connected to the compression wheel 5 via a pin.

[0028] The clamping assembly 6 includes a threaded rod 605 that is horizontally rotatably connected to the upper surface of the base plate 10. One end of the threaded rod 605 is fixedly connected to a rotating wheel 606 for manually driving the threaded rod 605 to rotate. To achieve the centering and clamping function of the clamping assembly 6, there are two clamping arms 601, which are symmetrically distributed on both sides of the threaded rod 605. The outer surface of the threaded rod 605 is provided with two sections of threads with opposite directions of rotation. The two clamping arms 601 are respectively threaded onto the two sections of threads. When the rotating wheel 606 is rotated, the rotational movement of the threaded rod 605 synchronously drives the two clamping arms 601 to move towards or away from each other along the axial direction of the threaded rod 605 through the two sections of threads with opposite directions of rotation.

[0029] Meanwhile, to ensure that the clamping arm 601 remains stable during movement and does not rotate with the threaded rod 605, a slider 602 is fixedly connected to the bottom end of the clamping arm 601. A corresponding groove 603 is provided on the upper surface of the base plate 10. The groove 603 extends along the axial direction of the threaded rod 605, and the cross-section of the groove 603 is T-shaped. The shape of the slider 602 is adapted to the groove 603. In the assembled state, the slider 602 slides inside the groove 603. This not only ensures that the clamping arm 601 can only translate along the axial direction of the threaded rod 605 under the drive of the threaded rod 605, but also that the T-shaped structure can limit the displacement of the clamping arm 601 in the vertical direction, thus improving the stability of clamping.

[0030] To prevent the clamping arm 601 from disengaging when it reaches the end of its stroke, limit blocks 604 are fixedly connected to both ends of the threaded rod 605. The limit blocks 604 physically limit the extreme movement position of the clamping arm 601 to prevent the clamping arm 601 from coming off the threaded rod 605.

[0031] To facilitate water addition or reduce the weight of the device during transport, the water tank 2 is detachably placed in the installation space inside the frame 1. The bottom of the water tank 2 is supported on the structure of the frame 1, and the water tank 2 is located below the base plate 10. The outer wall of the water tank 2 is tightly fitted to the inner wall of the frame 1 to prevent shaking.

[0032] In order to enable the plastic film roll 9 to rotate smoothly to release the plastic film, the two ends of the rotating shaft 8 are respectively rotated with the inner sides of the two clamping arms 601. For example, the inner sides of the clamping arms 601 can be provided with grooves or bearing seats, and the two ends of the rotating shaft 8 are housed in the grooves or bearing seats, thereby allowing the rotating shaft 8 to rotate freely around its own axis.

[0033] In order for the connecting rod 701 to pass over the compression wheel 5 and transmit force stably, the connecting rod 701 has a U-shaped structure. The top of the connecting rod 701, that is, the two arm ends of the U-shaped structure, is fixedly connected to the bottom surfaces of the two sides of the sliding block 702. The bottom of the connecting rod 701, that is, the bottom of the U-shaped structure, is rotatably connected to the center of the compression wheel 5 through a pin. This structure ensures that the connecting rod 701 does not interfere with the rolling of the compression wheel 5 while transmitting pressure.

[0034] To reliably prevent the sliding block 702 from falling off the fixed post 705, the outer diameter of the limiting ring 703 fixedly connected to the bottom end of the fixed post 705 is larger than the diameter of the fixed post 705 itself, and the outer diameter of the limiting ring 703 is also larger than the diameter of the center hole of the sliding block 702 that is used to pass through the fixed post 705. When the sliding block 702 moves downward to the limit position, the bottom surface of the sliding block 702 will abut against the upper surface of the limiting ring 703, thereby being effectively limited.

[0035] To improve the operator's grip comfort and safety when pushing, the outer surface of the handle 3 is covered with a non-slip rubber sleeve; at the same time, to ensure the connection strength, the handle 3 is fixedly connected to the frame 1 by welding.

[0036] Working principle: When installing the plastic film, the operator first places the rotating shaft 8 with the plastic film roll 9 attached between the two clamping arms 601, and then rotates the rotating wheel 606, which drives the threaded rod 605 to rotate. Since the slider 602 at the bottom of the clamping arm 601 is limited to sliding inside the groove 603 of the base plate 10, the clamping arm 601 cannot rotate with the threaded rod 605. Furthermore, since the outer surface of the threaded rod 605 has two sections of threads with opposite directions of rotation, the rotation of the threaded rod 605 will synchronously drive the two clamping arms 601 to move towards each other along the axial direction of the threaded rod 605 through the threaded connection until the inner side of the clamping arm 601 clamps the two ends of the rotating shaft 8, thereby completing the quick installation and fixing of the plastic film roll 9. The limiting blocks 604 at both ends of the threaded rod 605 can prevent the clamping arms 601 from coming off during movement.

[0037] During the laying operation, the water tank 2 is placed in the installation space inside the frame 1. The operator holds the handle 3 and pushes the device forward. The wheels 4 roll on the ground, driving the entire device to move. The mulch film roll 9 rotates on the shaft 8 and unfolds the mulch film. The compression wheel 5 rolls tightly against the surface of the unfolded mulch film, compacting it. When the device moves to uneven ground, the compression wheel 5 will be subjected to an upward impact force from the ground. This force pushes the sliding block 702 upward through the connecting rod 701. The sliding block 702 then moves along the fixed post 705. The outer surface of the sliding block 702 slides upward and compresses the spring 704 located between the sliding block 702 and the connecting block 706. The compressed spring 704 generates a downward reaction force, which is continuously applied to the compression wheel 5 through the sliding block 702 and the connecting rod 701. This allows the compression wheel 5 to adapt to the unevenness of the ground and maintain the pressure on the mulch film, ensuring a smooth laying and providing a buffer and shock absorption effect. The limiting ring 703 at the bottom of the fixing post 705 can prevent the sliding block 702 from falling off the fixing post 705 during bumpy conditions.

Claims

1. A tomato cultivation mulch film laying and rolling device, comprising a frame (1), wheels (4) rotatably mounted on the bottom of the frame (1), a handle (3) fixedly connected to one side of the frame (1), and a base plate (10) fixedly connected to the frame (1); wherein the frame (1) has an internal space for placing a water tank (2), characterized in that, Also includes: A clamping assembly (6) is provided above the base plate (10). The clamping assembly (6) includes a threaded rod (605) that is horizontally rotatably connected to the upper surface of the base plate (10). One end of the threaded rod (605) extends to the outside of the base plate (10) and is fixedly connected to a rotating wheel (606). A clamping arm (601) is threadedly connected to the outer surface of the threaded rod (605). The inner side of the clamping arm (601) is used to clamp a rotating shaft (8). A film roll (9) is sleeved on the outer wall of the rotating shaft (8). A slider (602) is fixedly connected to the bottom end of the clamping arm (601). A groove (603) is provided on the upper surface of the base plate (10). The slider (602) is slidably connected to the inside of the groove (603). Limiting blocks (604) are fixedly connected to both ends of the threaded rod (605). The retraction assembly (7) is located below the frame (1). The retraction assembly (7) includes a connecting block (706) fixedly connected to the frame (1). A fixing post (705) is vertically fixedly connected to the lower surface of the connecting block (706). A sliding block (702) is slidably sleeved on the outer surface of the fixing post (705). A spring (704) is sleeved on the outer surface of the fixing post (705) between the connecting block (706) and the sliding block (702). A connecting rod (701) is fixedly connected to the bottom surface of the sliding block (702). A compression wheel (5) is rotatably connected to the bottom end of the connecting rod (701). A limiting ring (703) is fixedly connected to the bottom end of the fixing post (705).

2. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, The water tank (2) is detachably placed in the installation space and is located below the base plate (10).

3. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, There are two clamping arms (601), which are symmetrically distributed on both sides of the threaded rod (605). The outer surface of the threaded rod (605) is provided with two sections of threads with opposite directions of rotation, and the two clamping arms (601) are respectively threaded to the two sections of threads.

4. The tomato cultivation mulch film laying and rolling device according to claim 3, characterized in that, The two ends of the rotating shaft (8) are respectively rotated and engaged with the inner surfaces of the two clamping arms (601).

5. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, The groove (603) extends along the axial direction of the threaded rod (605), and the cross-section of the groove (603) is T-shaped. The shape of the slider (602) is adapted to the groove (603).

6. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, The connecting rod (701) has a U-shaped structure. The top end of the connecting rod (701) is fixedly connected to both sides of the sliding block (702), and the bottom end of the connecting rod (701) is rotatably connected to the compression wheel (5) through a pin.

7. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, The outer diameter of the limiting ring (703) is greater than the diameter of the fixed post (705), and the outer diameter of the limiting ring (703) is greater than the diameter of the central hole of the sliding block (702).

8. The tomato cultivation mulch film laying and rolling device according to claim 1, characterized in that, The outer surface of the handle (3) is covered with an anti-slip rubber sleeve, and the handle (3) is fixedly connected to the frame (1) by welding.

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