Film paving device provided with locking mechanism

Abstract

The utility model discloses a film paving device provided with a locking mechanism. The film paving device comprises a rack, a self-locking winding drum limiting assembly and a compression control assembly. A lifting frame is arranged on one side of the machine frame, the self-locking type winding drum limiting assembly comprises a pair of assembling guide rods, a pair of side assembling sliding plates are slidably assembled on the outer sides of the pair of assembling guide rods, control boxes are fixedly assembled below the pair of side assembling sliding plates, and a plurality of evenly-distributed pneumatic assembling boxes are fixedly assembled in the control boxes. Locking blocks are assembled in the multiple pneumatic assembly boxes in a sliding mode. The compression control assembly comprises a bottom rod fixedly assembled on the lifting frame, and a compression connecting rod is assembled in the bottom rod in a sliding and sealing mode. According to the film paving device provided with the locking mechanism, after film paving is completed and the film paving device rises, the film mulching winding drum and the drip irrigation belt winding drum can be locked and fixed, the situation that unused films and drip irrigation belts are affected by incompletely-cut-off films and drip irrigation belts to be connected is reduced, and waste caused by the fact that the unused films and the drip irrigation belts are not used is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of film laying device, specifically relating to a film laying device equipped with a locking mechanism. Background Technology

[0002] A film-laying device is an agricultural machine used to lay mulch film on the surface of fields. These devices are usually equipped with a lifting frame during use. The lifting frame is generally connected to the frame through a parallel four-bar linkage, a hydraulic cylinder, and a hydraulic cylinder. Through the action of the parallel four-bar linkage, the lifting frame can assemble and move the film-laying structure. That is, during the film-laying operation, the lifting frame will descend under the action of the parallel four-bar linkage, so that the covering roller contacts the ground, thereby spreading the mulch film evenly on the soil surface to achieve the effects of moisture retention, weed control, and increasing soil temperature. After the film-laying operation is completed, the lifting frame will lift the film-laying device again through the parallel four-bar linkage.

[0003] Chinese utility model patent with patent number CN219593209U discloses a film and tape cutting device. In practical application, the device uses a telescopic cylinder to drive an arc-shaped shovel to rotate and cut the laid mulch film and drip irrigation tape. After the arc-shaped shovel resets, it will dump the soil inside. The soil inside the arc-shaped shovel can press down the re-laid mulch film and drip irrigation tape, thereby playing the role of automatic soil pressing.

[0004] As can be seen from the description and accompanying drawings, the film and tape cutting device in this application mainly cuts the covering film and drip irrigation tape by moving an arc-shaped shovel. However, in actual application, it is easy for the covering film or drip irrigation tape to be not completely cut. When this happens, the incompletely cut covering film or drip irrigation tape can easily pull on the covering film or drip irrigation tape on the film roll and drip irrigation tape roll, which can easily cause damage or contamination of unused covering film or drip irrigation tape, resulting in waste of covering film or drip irrigation tape.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a film-laying device equipped with a locking mechanism.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a film-laying device equipped with a locking mechanism, which can lock the film roll and drip irrigation tape roll after film laying is completed, thereby reducing the waste of unused film or drip irrigation tape.

[0008] To achieve the above objectives, a specific embodiment of the present invention provides a film-laying device equipped with a locking mechanism, including: a frame, a self-locking roll limiting component, and a compression control component.

[0009] A lifting frame is provided on one side of the frame.

[0010] The self-locking drum limiting assembly is fixedly mounted on the lifting frame. The self-locking drum limiting assembly includes a pair of assembly guide rods, which are fixedly mounted on the lifting frame. A pair of side assembly slide plates are slidably mounted on the outer side of each pair of assembly guide rods. A control box is fixedly mounted below each pair of side assembly slide plates. Multiple evenly distributed pneumatic assembly boxes are fixedly mounted inside the control box. Locking blocks are slidably mounted inside each of the multiple pneumatic assembly boxes. A locking shaft is inserted into the control box. A limiting side plate is fixedly connected to one end of the locking shaft located outside the control box.

[0011] The compression control assembly is fixedly mounted on the lifting frame. The compression control assembly includes a base rod fixedly mounted on the lifting frame. A compression connecting rod is slidably and sealed inside the base rod. A compression control cavity is formed between the base rod and the compression connecting rod. A guide air pipe is fixedly connected to one side of the base rod. The guide air pipe is connected to the compression control cavity.

[0012] In one or more embodiments of this utility model, multiple sets of evenly distributed traveling wheels are fixedly mounted on the lower part of the frame. These traveling wheels support, limit, and assist the movement of the frame. A soil-hanging plate is fixedly mounted on the lower part of the frame, and the soil-hanging plate is arranged between the multiple sets of traveling wheels. The movement of the soil-hanging plate levels the film-covered ground. The bottom surface of the soil-hanging plate is at the same horizontal plane as the bottom surfaces of the multiple sets of traveling wheels. This reduces interference between the soil-hanging plate and the film-covered ground during the movement of the traveling wheels.

[0013] In one or more embodiments of this utility model, locking bolts are threaded to both sides of the pair of side mounting slides, with one end of the locking bolt located inside the side mounting slide contacting the outer surface of the mounting guide rod. The locking and fixing state of the side mounting slides is adjusted by controlling the rotation of the locking bolts.

[0014] In one or more embodiments of this utility model, a piston plate is fixedly connected to one end of the locking block located inside the pneumatic assembly box. The piston plate supports, limits, and controls the movement of the locking block. A return spring is fixedly connected between the piston plate and the pneumatic assembly box. The piston plate is supported and reset by the contraction and reset of the return spring.

[0015] In one or more embodiments of this utility model, the side of the piston plate opposite to the return spring cooperates with the pneumatic assembly box to form an airtight control chamber. The pressure of the airtight control chamber is regulated by supplying gas into it, thereby facilitating the piston plate to pull and reset the locking block under air pressure. Multiple sets of pneumatic assembly boxes are fixedly connected by vent pipes, and multiple airtight control chambers are connected through these vent pipes. The compression control chamber is also connected to the vent pipes. Gas is synchronously supplied to multiple airtight control chambers through the vent pipes, thereby facilitating synchronous drive control of multiple locking blocks.

[0016] In one or more embodiments of this utility model, a plurality of evenly distributed locking positioning holes are provided on the outer side of the locking shaft, and the locking positioning holes are engaged with locking blocks. The locking shaft is locked and positioned by the cooperation of the locking blocks and the locking positioning holes. A bearing shaft is fixedly assembled on the side of the limiting side plate opposite to the locking shaft. The bearing shaft provides bearing and limiting for the film-coated roll or drip irrigation tape roll.

[0017] In one or more embodiments of this utility model, a connecting spring is installed inside the compression control cavity. The compression connecting rod is supported and reset by the contraction and reset of the connecting spring. A buffer support rod is slidably installed below the compression connecting rod. The buffer support rod serves to support and limit the compression connecting rod.

[0018] In one or more embodiments of this utility model, a support spring connects the buffer support rod and the compression connecting rod. The support spring connects the buffer support rod and the compression connecting rod, and supports and resets the buffer support rod through the contraction and reset of the support spring. The stiffness coefficient of the support spring is greater than that of the connecting spring. By setting the stiffness coefficient of the support spring to be greater than that of the connecting spring, the compression connecting rod can compress the connecting spring first under the same force, ensuring the stability of the compression of the guide air tube space.

[0019] In one or more embodiments of this utility model, a wheel frame is fixedly connected to one end of the buffer support rod outside the compression connecting rod. The wheel frame serves to limit the assembly of the auxiliary wheel. An auxiliary wheel is rotatably mounted inside the wheel frame. The auxiliary wheel provides support, limitation, and auxiliary movement for the wheel frame.

[0020] In one or more embodiments of this utility model, the horizontal height of the lower bottom surface of the auxiliary wheel is lower than the lower bottom surface of the multiple sets of walking wheels. This facilitates that when the frame is placed on the ground, the auxiliary wheel can drive the compression connecting rod and the buffer support rod to compress the connecting spring and the support spring respectively under the action of external force.

[0021] Compared with the prior art, the film-laying device with locking mechanism disclosed in this utility model can lock and fix the film roll and drip irrigation tape roll after the film is laid and raised, which reduces the situation where unused film and drip irrigation tape are affected by incompletely cut film and drip irrigation tape and thus reduces the waste of unused film and drip irrigation tape. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of a film-laying device equipped with a locking mechanism in one embodiment of the present invention;

[0024] Figure 2 This is a perspective view of a self-locking drum limiting component according to an embodiment of the present invention;

[0025] Figure 3 This is a first front sectional view of a self-locking drum limiting assembly according to an embodiment of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a second front sectional view of a self-locking drum limiting assembly according to an embodiment of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the structure at point B;

[0029] Figure 7 This is a side view of a self-locking drum limiting assembly according to an embodiment of the present invention;

[0030] Figure 8 for Figure 7 Schematic diagram of the structure at point C.

[0031] Key reference numerals: 1-Frame, 101-Lifting frame, 2-Self-locking drum limiting assembly, 201-Assembly guide rod, 202-Side mounting plate, 203-Control box, 204-Pneumatic assembly box, 205-Locking block, 206-Locking shaft, 207-Limiting side plate, 208-Locking bolt, 209-Piston plate, 210-Reset spring, 211-Air pipe, 212-Bearing shaft, 3-Compression control assembly, 301-Base rod, 302-Compression connecting rod, 303-Compression control chamber, 304-Guide air pipe, 305-Connecting spring, 306-Buffer support rod, 307-Support spring, 308-Wheel frame, 309-Auxiliary wheel. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, 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, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0033] like Figures 1 to 8 As shown, the film-laying device equipped with a locking mechanism in one embodiment of the present invention includes: a frame 1, a self-locking roll limiting component 2, and a compression control component 3.

[0034] like Figure 1 As shown, multiple sets of evenly distributed casters are fixedly mounted on the lower part of the frame 1. The casters support, limit, and assist in the movement of the frame 1. A lifting frame 101 is provided on one side of the frame 1, on which film-coating rolls and drip irrigation tape rolls can be installed.

[0035] like Figures 2 to 4 As shown, the self-locking drum limiting assembly 2 is fixedly mounted on the lifting frame 101. The self-locking drum limiting assembly 2 includes a pair of assembly guide rods 201, which are fixedly mounted on the lifting frame 101. The pair of assembly guide rods 201 are used for assembly limiting and sliding guidance via the opposite assembly slide plate 202.

[0036] like Figures 2 to 4 As shown, a pair of side mounting slide plates 202 are slidably mounted on the outer sides of each pair of mounting guide rods 201. The bearing shaft 212 is assembled and fixed by the pair of side mounting slide plates 202. At the same time, the film-coating roll and drip irrigation tape roll are loaded and limited by the side mounting slide plates 202.

[0037] like Figures 3 to 6As shown, both sides of a pair of side mounting slides 202 are threaded with locking bolts 208. One end of the locking bolt 208 located inside the side mounting slide 202 contacts the outer surface of the mounting guide rod 201. The locking and fixing state of the side mounting slides 202 is adjusted by controlling the rotation of the locking bolts 208.

[0038] like Figures 2 to 7 As shown, a control box 203 is fixedly mounted below each pair of side mounting slides 202. The control box 203 limits the assembly of multiple sets of pneumatic assembly boxes 204. At the same time, the control box 203 supports and limits the locking shaft 206.

[0039] like Figures 6 to 7 As shown, multiple evenly distributed pneumatic assembly boxes 204 are fixedly assembled inside the control box 203. The pneumatic assembly boxes 204 serve to limit the assembly and guide the sliding movement of the locking block 205.

[0040] like Figures 6 to 7 As shown, locking blocks 205 are slidably mounted inside multiple pneumatic assembly boxes 204. The locking shaft 206 is locked and positioned by the cooperation of multiple locking blocks 205 with locking positioning holes.

[0041] like Figures 6 to 7 As shown, a piston plate 209 is fixedly connected to one end of the locking block 205 located inside the pneumatic assembly box 204. The piston plate 209 supports, limits, and controls the movement of the locking block 205.

[0042] like Figures 6 to 7 As shown, a return spring 210 is fixedly connected between the piston plate 209 and the pneumatic assembly box 204. The piston plate 209 is supported and reset by the contraction and reset of the return spring 210.

[0043] Specifically, the side of the piston plate 209 away from the return spring 210 cooperates with the pneumatic assembly box 204 to form an airtight control cavity. The pressure of the airtight control cavity is regulated by supplying gas into it, thereby facilitating the piston plate 209 to pull and reset the locking block 205 under the action of air pressure.

[0044] like Figures 6 to 7 As shown, multiple sets of pneumatic assembly boxes 204 are fixedly connected by vent pipes 211, and multiple airtight control chambers are connected through vent pipes 211. The compression control chamber 303 is connected to the vent pipes 211. Gas is synchronously supplied to multiple airtight control chambers through the vent pipes 211, thereby facilitating synchronous drive control of multiple locking blocks 205.

[0045] like Figures 6 to 8As shown, a locking shaft 206 is inserted and assembled inside the control box 203. The limiting side plate 207 is locked and positioned by locking the locking shaft 206.

[0046] like Figures 6 to 8 As shown, a limiting side plate 207 is fixedly connected to one end of the locking shaft 206 located outside the control box 203. The limiting side plate 207 is used to assemble and fix the bearing shaft 212, and at the same time, it can limit the loading of the film-coating roll and the drip irrigation tape roll.

[0047] Specifically, the outer side of the locking shaft 206 has multiple evenly distributed locking positioning holes, which engage with the locking block 205. The locking shaft 206 is locked and positioned by the cooperation between the locking block 205 and the locking positioning holes.

[0048] like Figures 6 to 8 As shown, a bearing shaft 212 is fixedly mounted on the side of the limiting side plate 207 opposite to the locking shaft 206. The bearing shaft 212 provides bearing and limiting for the film-covering roll or drip irrigation tape roll.

[0049] like Figures 2 to 5 As shown, the compression control assembly 3 is fixedly mounted on the lifting frame 101. The compression control assembly 3 includes a base rod 301 fixedly mounted on the lifting frame 101. The base rod 301 serves to store and limit the compression connecting rod 302.

[0050] like Figures 2 to 5 As shown, a compression connecting rod 302 is slidably sealed inside the base rod 301. By controlling the movement of the compression connecting rod 302, the compression control chamber 303 is compressed, thereby facilitating the delivery of air from the compression control chamber 303 to the ventilation pipe 211 along the guide air pipe 304.

[0051] Specifically, a compression control chamber 303 is formed between the base rod 301 and the compression connecting rod 302. By controlling the change in the volume of the compression control chamber 303, the gas delivery and extraction state of the guide air tube 304 is controlled, thereby facilitating the control of the pop-out and retraction reset states of the multiple locking blocks 205.

[0052] like Figures 2 to 5 As shown, a guide air pipe 304 is fixedly connected to one side of the base rod 301, and the guide air pipe 304 is connected to the compression control chamber 303. The compression control chamber 303 and the air pipe 211 are connected and circulated through the guide air pipe 304.

[0053] like Figures 2 to 5As shown, a connecting spring 305 is installed inside the compression control chamber 303. The compression connecting rod 302 is supported and reset by the contraction and reset of the connecting spring 305. A buffer support rod 306 is slidably installed below the compression connecting rod 302. The buffer support rod 306 supports and limits the compression connecting rod 302.

[0054] like Figures 2 to 5 As shown, a support spring 307 connects the buffer support rod 306 and the compression connecting rod 302. The support spring 307 serves to connect the buffer support rod 306 and the compression connecting rod 302, and supports and resets the buffer support rod 306 by contracting and resetting the support spring 307.

[0055] Preferably, the stiffness coefficient of the support spring 307 is greater than that of the connecting spring 305. By setting the stiffness coefficient of the support spring 307 to be greater than that of the connecting spring 305, under the same force conditions...

[0056] In this case, the compression connecting rod 302 can first squeeze the connecting spring 305, ensuring the stability of the compression of the space in the guide air tube 304.

[0057] like Figures 2 to 5 As shown, a wheel frame 308 is fixedly connected to one end of the buffer support rod 306 outside the compression connecting rod 302. The wheel frame 308 serves to limit the assembly of the auxiliary wheel 309.

[0058] like Figures 2 to 5 As shown, an auxiliary wheel 309 is rotatably mounted inside the wheel frame 308. The auxiliary wheel 309 provides support, limits, and assists in the movement of the wheel frame 308.

[0059] The bottom surface of the auxiliary wheel 309 is at a lower level than the bottom surface of the multiple sets of walking wheels. This allows the auxiliary wheel 309 to drive the compression connecting rod 302 and the buffer support rod 306 to compress the connecting spring 305 and the support spring 307 respectively under the action of external force when the frame 1 is placed on the ground.

[0060] In practical use, when laying the film, the lifting frame 101 can be placed on the ground through the parallel four-bar linkage. The auxiliary wheel 309 drives the compression connecting rod 302 and the buffer support rod 306 to compress the connecting spring 305 and the support spring 307 under the gravity of the frame 1. Since the stiffness coefficient of the support spring 307 is greater than that of the connecting spring 305, the compression connecting rod 302 can compress the connecting spring 305 first, so that the air in the compression control chamber 303 is transported to the ventilation pipe 211 along the guide air pipe 304. Air is then transported to the airtight control chambers in multiple pneumatic assembly boxes 204 through multiple ventilation pipes 211. This facilitates the locking block 205 to be reset under air pressure by supplying air to the airtight control chamber. The locking state of the locking shaft 206 is released by the locking block 205 disengaging from the locking positioning hole on the outside of the locking shaft 206.

[0061] Subsequently, the ground can be covered with film and drip irrigation tape can be laid by rotating the locking shaft 206 and moving the frame 1.

[0062] After the film is laid, the lifting frame 101 can be lifted off the ground by the parallel four-bar linkage mechanism. At this time, the compression connecting rod 302 extends and resets under the action of the connecting spring 305, the compression connecting rod 302, and the buffer support rod 306. During the reset process of the compression connecting rod 302, the volume of the compression control chamber 303 increases. The increased volume of the compression control chamber 303 can extract the air from the airtight control chambers in the multiple pneumatic assembly boxes 204, so that the locking block 205 can pop out under the action of the reset spring 210. The locking block 205 is locked and fixed by engaging with the locking positioning hole on the outside of the locking shaft 206, thereby reducing the situation where the locking shaft 206 is pulled by external force and wastes unused film or drip irrigation tape.

[0063] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A film-laying device equipped with a locking mechanism, characterized in that, include: A frame, wherein a lifting frame is provided on one side of the frame; A self-locking drum limiting assembly is fixedly mounted on the lifting frame. The self-locking drum limiting assembly includes a pair of assembly guide rods, which are fixedly mounted on the lifting frame. A pair of side assembly slides are slidably mounted on the outer side of each pair of assembly guide rods. A control box is fixedly mounted below each pair of side assembly slides. Multiple evenly distributed pneumatic assembly boxes are fixedly mounted inside the control box. Locking blocks are slidably mounted inside each of the multiple pneumatic assembly boxes. A locking shaft is inserted into the control box. A limiting side plate is fixedly connected to one end of the locking shaft located outside the control box. A compression control assembly is fixedly mounted on the lifting frame. The compression control assembly includes a base rod fixedly mounted on the lifting frame. A compression connecting rod is slidably and sealed inside the base rod. A compression control cavity is formed between the base rod and the compression connecting rod. A guide air pipe is fixedly connected to one side of the base rod and communicates with the compression control cavity.

2. The film-laying apparatus equipped with a locking mechanism according to claim 1, characterized in that, Both sides of the pair of side mounting slides are threaded with locking bolts, and one end of the locking bolt located inside the side mounting slide contacts the outer surface of the mounting guide rod.

3. The film-laying apparatus equipped with a locking mechanism according to claim 1, characterized in that, A piston plate is fixedly connected to one end of the locking block inside the pneumatic assembly box, and a return spring is fixedly connected between the piston plate and the pneumatic assembly box.

4. The film-laying apparatus equipped with a locking mechanism according to claim 3, characterized in that, The piston plate on the side opposite to the return spring cooperates with the pneumatic assembly box to form an airtight control cavity, and multiple sets of the pneumatic assembly boxes are fixedly connected by air pipes.

5. The film-laying apparatus equipped with a locking mechanism according to claim 4, characterized in that, The multiple airtight control chambers are connected by a vent pipe, and the compression control chamber is connected to the vent pipe.

6. The film-laying apparatus equipped with a locking mechanism according to claim 1, characterized in that, The outer side of the locking shaft is provided with a plurality of evenly distributed locking positioning holes, which are engaged with the locking block.

7. The film-laying apparatus equipped with a locking mechanism according to claim 1, characterized in that, The limiting side plate is fixedly fitted with a bearing shaft on the side opposite to the locking rotating shaft.

8. The film-laying apparatus equipped with a locking mechanism according to claim 1, characterized in that, A connecting spring is installed inside the compression control chamber, and a buffer support rod is slidably installed below the compression connecting rod.

9. The film-laying apparatus equipped with a locking mechanism according to claim 8, characterized in that, A support spring is connected between the buffer support rod and the compression connecting rod, and the stiffness coefficient of the support spring is greater than that of the connecting spring.

10. The film-laying apparatus equipped with a locking mechanism according to claim 9, characterized in that, The buffer support rod is fixedly connected to a wheel frame at one end outside the compression connecting rod, and an auxiliary wheel is rotatably mounted inside the wheel frame.

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