Punching device for crop field mulching film

Abstract

The utility model discloses a mulching film punching device for a crop field, and belongs to the technical field of mulching film punching. The mulching film punching device comprises a sleeve, a sliding rod installed in the sleeve in a sliding mode, an expanding disc fixedly installed on the sliding rod, a fixing ring fixedly installed on the sleeve, punching pieces arranged at the bottom of the expanding disc and a control mechanism arranged on one side of the fixing ring and used for changing the hole distance of the punching pieces. Through cooperative use of the devices, the handles are pulled outwards by two hands, the handles slide in the functional cylinder, the first springs are extruded while the handles slide until the handles are pulled out from the interiors of the limiting holes in the sliding rods, then the two handles are lifted upwards or downwards, and finally the sliding blocks are driven to move left and right along the sliding grooves. The multiple sliding blocks drive the multiple punching pieces to move synchronously, so that the hole distance is increased and decreased, the punching head does not need to be replaced, time and energy consumption is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic film perforation technology, specifically a device for perforating plastic film in crop fields. Background Technology

[0002] Mulch film, also known as ground cover film, is usually transparent or black PE film, but also comes in green and silver. It is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth. The holes in the mulch film are to leave space for the crops to grow, so as to avoid them being obstructed by the mulch film.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN215935731U) discloses a device for punching holes in mulch film in crop fields. The device includes a main rod, which is straight; a detachable handle at the top of the main rod; a main rod connector at the bottom of the main rod; a punching head comprising a punching head body, depth adjustment holes, and an annular serrated structure; multiple depth adjustment holes are arranged vertically along the punching head body; the annular serrated structure is located at the bottom of the punching head body and faces downwards; the top of the punching head body is connected to the main rod connector via a converter; a plant spacing ruler is horizontally installed in any of the depth adjustment holes to position the plant spacing and limit the punching depth.

[0004] In the aforementioned patent, the plastic film is cut by the annular serrated structure at the bottom of the punching head. The punching depth is adjusted by installing a plant spacing ruler in different depth adjustment holes. The plant spacing is also determined by the plant spacing ruler, thereby improving the punching efficiency. However, the required hole size varies for punching plastic film for different crops. The hole spacing of the punching head is not convenient to adjust and the punching head needs to be replaced. Replacing the punching head requires time and effort. Especially in large-scale farmland operations, frequent replacement of the punching head may reduce work efficiency.

[0005] Therefore, this utility model provides a device for punching holes in plastic film in crop fields to solve the above-mentioned problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a device for punching holes in plastic film in crop fields, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a mulch film punching device for crop fields, the mulch film punching device comprising a sleeve, a slide rod slidably installed inside the sleeve, an expansion plate fixedly installed on the slide rod, a fixing ring fixedly installed on the sleeve, a punching plate disposed at the bottom of the expansion plate, and a control mechanism disposed on one side of the fixing ring for changing the hole spacing of the punching plate.

[0010] The control mechanism includes a functional cylinder fixedly mounted on a fixed ring, a handle slidably mounted inside the functional cylinder, a first spring disposed inside the functional cylinder, multiple limiting holes formed in the slide rod for the handle to insert into, multiple slide grooves formed on the expansion plate, a slider slidably mounted inside the slide groove, and a connecting rod hinged to the top of the slider. A perforated plate is fixedly mounted on the bottom of the slider, and the end of the connecting rod away from the slider is hinged to the side surface of the sleeve.

[0011] As a preferred technical solution of this application, one end of the first spring is fixedly connected to the handle guard ring, the other end of the first spring is fixedly connected to the functional cylinder, multiple sliding grooves are distributed in a ring array on the expansion plate, and multiple limiting holes are distributed in a linear array on the slide rod.

[0012] As a preferred technical solution of this application, a connecting plate is fixedly connected to the bottom of the slide rod, a telescopic rod is fixedly connected to the bottom of the connecting plate, and a push plate is fixedly connected to the movable end of the telescopic rod.

[0013] As a preferred technical solution of this application, a second spring is sleeved on the side surface of the telescopic rod, one side of the second spring is fixedly connected to the bottom of the connecting plate, and the other end of the second spring is fixedly connected to the top of the push plate.

[0014] As a preferred technical solution of this application, a plurality of cutting blades are fixedly connected to the bottom of the perforated plate, and the cutting blades are distributed in a ring array on the perforated plate.

[0015] As a preferred technical solution of this application, a handle is fixedly connected to the end of the slide rod away from the connecting plate.

[0016] (III) Beneficial Effects

[0017] This utility model has a simple structure and is easy to use. By pulling the handles outward with both hands, the handles slide inside the functional cylinder. While sliding, the first spring is squeezed until the handles are pulled out from inside the upper limit hole of the slide rod. Then, by lifting the two handles up or down, the sliders are moved left and right along the slide groove. Multiple sliders move synchronously with multiple punching plates, thereby expanding or reducing the hole spacing. There is no need to replace the punching head, which reduces the time and effort spent and improves work efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of a perforation device for agricultural plastic film in fields. Figure 1 ;

[0019] Figure 2 A schematic diagram of a perforation device for agricultural plastic film in fields. Figure 2 ;

[0020] Figure 3 A schematic diagram of a perforation device for agricultural plastic film in fields. Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the installation of a functional cylinder in a field mulch film punching device for crops;

[0022] Figure 5 This is a schematic diagram of the installation of a pusher plate in a field mulch film punching device for crops.

[0023] In the picture:

[0024] 1. Sleeve; 2. Slide rod; 3. Expander plate; 4. Fixing ring; 5. Functional cylinder; 6. Handle; 7. First spring; 8. Limiting hole; 9. Slide groove; 10. Slider; 11. Drilling plate; 12. Connecting rod; 13. Connecting plate; 14. Telescopic rod; 15. Push plate; 16. Second spring; 17. Cutting blade; 18. Handle. Detailed Implementation

[0025] 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.

[0026] This utility model provides a device for punching holes in plastic film in crop fields, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the mulch film perforation device includes a sleeve 1, a slide rod 2 slidably installed inside the sleeve 1, an expansion plate 3 fixedly installed on the slide rod 2, a fixing ring 4 fixedly installed on the sleeve 1, a perforation piece 11 set at the bottom of the expansion plate 3, and a control mechanism set on one side of the fixing ring 4 for changing the hole spacing of the perforation piece 11.

[0027] The control mechanism includes a functional cylinder 5 fixedly mounted on a fixed ring 4, a handle 6 slidably mounted inside the functional cylinder 5, a first spring 7 disposed inside the functional cylinder 5, multiple limiting holes 8 opened in the slide rod 2 for the handle 6 to be inserted, multiple slide grooves 9 opened on the expansion plate 3, a slider 10 slidably mounted inside the slide groove 9, and a connecting rod 12 hinged to the top of the slider 10. A perforated plate 11 is fixedly mounted on the bottom of the slider 10, and the end of the connecting rod 12 away from the slider 10 is hinged to the side surface of the sleeve 1.

[0028] One end of the first spring 7 is fixedly connected to the upper retaining ring of the handle 6, and the other end of the first spring 7 is fixedly connected to the functional cylinder 5. Multiple sliding grooves 9 are arranged in a ring array on the expansion plate 3, and multiple limiting holes 8 are arranged in a linear array on the slide rod 2.

[0029] When using this plastic film perforation device, the perforation spacing of the perforating plate 11 is set according to the crop. Then, the sleeve 1 and the sliding rod 2 are inserted together into the appropriate position on the plastic film. After rotating a certain angle, the perforation of the plastic film is completed. When using the device for different crops, the handles 6 are pulled outwards by both hands. The handles 6 slide inside the functional cylinder 5. While sliding, the first spring 7 is squeezed until the handles 6 are pulled out from inside the upper limit hole 8 of the sliding rod 2 and no longer limit the sliding rod 2. Then, the two handles 6 are lifted up or down. The handles 6 drive the fixing ring 4 and the sleeve 1 to move up or down synchronously. Simultaneously, the connecting rod 12 moves up and down synchronously. Since the two ends of the connecting rod 12 are hinged to the sleeve 1 and the slider 10 respectively, the slider 10 moves left and right along the slide groove 9. Multiple sliders 10 move synchronously with multiple punching pieces 11, thereby expanding or shrinking the hole spacing. After the hole spacing reaches the appropriate size, the handle 6 is released, and the elastic potential energy of the first spring 7 pushes the handle 6, which finally makes the handle 6 enter the interior of the limiting hole 8, fixing the sleeve 1 and the slider 2. Then, the sleeve 1 together with the slider 2 is pushed into the appropriate position on the mulch film, and then rotated at a certain angle to complete the punching of the mulch film.

[0030] Furthermore, to facilitate the removal of soil from the holes after drilling the mulch film, such as... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a connecting plate 13 is fixedly connected to the bottom of the slide rod 2, a telescopic rod 14 is fixedly connected to the bottom of the connecting plate 13, and a push plate 15 is fixedly connected to the movable end of the telescopic rod 14.

[0031] A second spring 16 is fitted on the side surface of the telescopic rod 14. One side of the second spring 16 is fixedly connected to the bottom of the connecting plate 13, and the other end of the second spring 16 is fixedly connected to the top of the push plate 15.

[0032] When using this plastic film perforation device, after setting the hole spacing between the perforating plates 11 according to the crop, the sleeve 1 and the sliding rod 2 are inserted together into the appropriate position on the plastic film. The perforating plates 11 will first contact the plastic film and continue to be inserted downwards. The push plate 15 will then contact the plastic film and continue to be inserted downwards. The push plate 15 will compress the second spring 16 and the telescopic rod 14, causing the telescopic rod 14 to retract. Then, the sleeve 1 and the sliding rod 2 are rotated at a certain angle to complete the perforation of the plastic film. The sleeve 1 and the sliding rod 2 are pulled upwards. During the pulling process, the elastic potential energy of the second spring 16 pushes the push plate 15 downwards, while simultaneously causing the telescopic rod 14 to extend. As the push plate 15 pushes downwards, the soil inside the hole spacing is pushed outwards, thus removing the soil.

[0033] It should be noted that, in order to reduce the possibility of the plastic film shrinking towards the pressure point, causing wrinkles and affecting the land cover effect, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a plurality of cutting blades 17 are fixedly connected to the bottom of the perforated plate 11, and the cutting blades 17 are arranged in a ring array on the perforated plate 11.

[0034] A handle 18 is fixedly connected to the end of the slide bar 2 away from the connecting plate 13.

[0035] When the plastic film perforation device is in use, the handle 18 controls the sleeve 1 and the slide rod 2 to push downwards, which can drive the cutting blade 17 at the bottom of the perforation plate 11 to approach the surface of the plastic film. The bottom tips of the multiple sets of cutting blades 17 can be quickly inserted into the film. When the sleeve 1 and the slide rod 2 are rotated, the cutting blades 17 can be rotated to quickly rotate and cut the surface of the plastic film, thereby ensuring the flatness of the plastic film during cutting and improving the degradation effect of the plastic film coverage.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for punching holes in plastic film in crop fields, characterized in that: The mulch film punching device includes a sleeve (1), a slide rod (2) slidably installed inside the sleeve (1), an expansion plate (3) fixedly installed on the slide rod (2), a fixing ring (4) fixedly installed on the sleeve (1), a punching plate (11) set at the bottom of the expansion plate (3), and a control mechanism set on one side of the fixing ring (4) for changing the hole spacing of the punching plate (11). The control mechanism includes a functional cylinder (5) fixedly mounted on the fixed ring (4), a handle (6) slidably mounted inside the functional cylinder (5), a first spring (7) disposed inside the functional cylinder (5), a plurality of limiting holes (8) opened in the slide rod (2) for the handle (6) to be inserted, a plurality of slide grooves (9) opened on the expansion plate (3), a slider (10) slidably mounted inside the slide groove (9), and a connecting rod (12) hinged to the top of the slider (10). The perforated plate (11) is fixedly mounted on the bottom of the slider (10), and the end of the connecting rod (12) away from the slider (10) is hinged to the side surface of the sleeve (1).

2. The perforation device for agricultural film mulch in fields according to claim 1, characterized in that: One end of the first spring (7) is fixedly connected to the upper retaining ring of the handle (6), and the other end of the first spring (7) is fixedly connected to the functional cylinder (5). Multiple sliding grooves (9) are arranged in a ring array on the expansion plate (3), and multiple limiting holes (8) are arranged in a linear array on the slide rod (2).

3. The perforation device for agricultural film mulch in crop fields according to claim 1, characterized in that: The bottom of the slide bar (2) is fixedly connected to a connecting plate (13), the bottom of the connecting plate (13) is fixedly connected to a telescopic rod (14), and the movable end of the telescopic rod (14) is fixedly connected to a push plate (15).

4. A perforation device for agricultural mulch film in crop fields according to claim 3, characterized in that: A second spring (16) is sleeved on the side surface of the telescopic rod (14). One side of the second spring (16) is fixedly connected to the bottom of the connecting plate (13), and the other end of the second spring (16) is fixedly connected to the top of the push plate (15).

5. A perforation device for agricultural film mulch in crop fields according to claim 1, characterized in that: The bottom of the perforated plate (11) is fixedly connected with a plurality of cutting blades (17), which are arranged in a ring array on the perforated plate (11).

6. A perforation device for agricultural film mulch in crop fields according to claim 3, characterized in that: A handle (18) is fixedly connected to the end of the slide rod (2) away from the connecting plate (13).

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