CN212911025U

CN212911025U - Laying device for fully-degradable biomass agricultural film

Info

Publication number: CN212911025U
Application number: CN202021619886.5U
Authority: CN
Inventors: 刘帆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-09
Anticipated expiration: 2030-08-06

Abstract

The utility model belongs to the technical field of agricultural film laying, in particular to a laying device for a fully-degradable biomass agricultural film, which comprises a frame, wherein a walking mechanism is arranged on the frame, an agricultural film rotating shaft and an agricultural film guide roller which is in clearance fit with the agricultural film rotating shaft are arranged on the frame, and the agricultural film rotating shaft is movably connected with a pair of rolling grooves arranged on the frame; both sides of the head end of the frame are provided with furrow openers, and both sides of the tail end of the frame are provided with soil covering wheel assemblies matched with the furrow openers; the tail end of the frame is provided with a pair of operating handrails which are detachably connected with the frame, and the operating handrail on one side is provided with a control switch; the walking mechanism comprises a pair of walking wheels arranged at the head end of the frame and an engine assembly arranged on the frame, and the output end of the engine assembly is connected with the walking wheels through a transmission.

Description

Laying device for fully-degradable biomass agricultural film

Technical Field

The utility model belongs to the technical field of the agricultural film is laid, concretely relates to full degradation living beings laying device for agricultural film.

Background

The full-biodegradable agricultural film can be completely digested by bacteria and microorganisms within 1-2 plant growth cycles, and finally forms carbon dioxide and water, has no harm to soil and crops, changes the condition that the traditional plastic forms white pollution to the soil, and thoroughly eliminates the threat of the traditional agricultural film to the soil. After the agricultural film is adopted for covering and cultivation, the temperature and the moisture condition of soil and the ground close to the soil can be improved, and the effects of improving the soil temperature, keeping the soil moisture, improving the soil property, improving the soil nutrient supply condition and the fertilizer utilization rate, improving the illumination condition, reducing the harm of weeds and pests and the like are achieved. Has good promotion effect on agricultural production.

The existing agricultural film laying mode is generally to ditch on two sides of a ridge, spread a agricultural film roll and lay the agricultural film roll on the ridge, and finally fix two sides of the agricultural film in the furrows in a mode of pressing soil in the furrows on the two sides; however, the working mode is slow in speed of laying the agricultural film, and normal laying of the agricultural film can be completed only by working by a plurality of people at the same time, so that the laying efficiency of the agricultural film is extremely low, and workers need to bend over or squat for a long time to work, so that chronic diseases in the aspects of waist and legs and the like are easily caused, and the health of the workers is seriously harmed.

SUMMERY OF THE UTILITY MODEL

In order to solve a series of problems caused when agricultural films are laid, the laying device for the fully-degradable biomass agricultural films is provided, which can be used for laying agricultural films quickly, is simple and convenient to operate and is suitable for single people to use.

Based on the above-mentioned purpose, the utility model discloses a following technical scheme realizes:

the laying device for the fully-degradable biomass agricultural film comprises a frame, wherein a walking mechanism is arranged on the frame, an agricultural film rotating shaft and an agricultural film guide roller in clearance fit with the agricultural film rotating shaft are arranged on the frame, and the agricultural film rotating shaft is movably connected with a pair of rolling grooves arranged on the frame; both sides of the head end of the frame are provided with furrow openers, and both sides of the tail end of the frame are provided with soil covering wheel assemblies matched with the furrow openers; the tail end of the frame is provided with a pair of operating handrails which are detachably connected with the frame, and the operating handrail on one side is provided with a control switch; the walking mechanism comprises a pair of walking wheels arranged at the head end of the frame and an engine assembly arranged on the frame, and the output end of the engine assembly is connected with the walking wheels through a transmission; the furrow opener turns soil towards the two sides of the frame, turns the soil turned out by ditching to the space between adjacent ridges, and is convenient for the subsequent soil covering wheel assembly to turn the soil on the outer side back to the ditches to compact and fix the agricultural film; the operation handrail is all established to S type handrail, makes things convenient for the operator to stand and carries out the plastic film at the ridge one side that needs lay the plastic film and lay to this ridge, prevents to step on laying the plastic film of completion, causes the destruction to the plastic film.

Preferably, the soil covering wheel assembly comprises a soil covering wheel, the soil covering wheel is fixedly connected with the frame through a soil covering wheel shaft arranged at the axle center of the soil covering wheel, and a soil covering shovel is arranged at one end, far away from the frame, of the wheel shaft; the soil covering shovel comprises a fixed end, one end of the fixed end is fixedly connected with the wheel shaft, the other end of the fixed end is an arc-shaped soil shoveling end which is close to the travelling wheel, and the inner arc surface of the arc-shaped soil shoveling end is close to the axle center of the frame.

Preferably, the outer ring of the soil covering wheel comprises an outer compaction wheel and an inner protection wheel, and the diameter of the compaction wheel is larger than that of the protection wheel; the compaction wheel is provided with compaction bulges which are uniformly distributed, and the protection wheel is sleeved with a protection rubber sleeve.

Preferably, be equipped with a pair of chucking spare on the plastic sheeting pivot, arbitrary chucking spare includes one end and plastic sheeting pivot matched with semicircle type solid fixed cylinder, and one side of semicircle type solid fixed cylinder is equipped with the fixed fastener of major arc type, and the fixed fastener of major arc type includes a plurality of arc type stationary blades of connecting through fixed rotating shaft, is equipped with the pull-back spring on the solid fixed fastener of major arc type, and the pull-back spring both ends are fixed respectively on the arc type stationary blade of the solid fixed fastener both ends tip of major arc type.

Preferably, one end of the semicircular fixing cylinder is provided with a fixing chuck, and the fixing chuck is fixedly connected with the other end of the semicircular fixing cylinder; the fixing chuck is provided with a plurality of groups of fixing screw holes, and any group of fixing screw holes is matched with a group of anti-falling screw holes arranged at the other end of the semicircular fixing cylinder.

Preferably, the frame is also provided with an agricultural film compactor matched with the agricultural film rotating shaft, the agricultural film compactor comprises a movable support movably connected with the frame, one end of the movable support, far away from the frame, is provided with a compacting roller rotatably connected with the movable support, and the compacting roller is matched with the agricultural film rotating shaft; the movable support is provided with a compression spring.

Preferably, rolling bearings matched with the rolling grooves are arranged at the end parts of the two ends of the agricultural film rotating shaft, external threads are arranged at the two ends of the agricultural film rotating shaft, internal threads matched with the external threads are arranged on inner rings of the rolling bearings, and fixing parts matched with the rolling bearings are arranged on the rolling grooves; the operating armrest is provided with a tool cylinder.

Preferably, the control switch is connected with the running gear.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the utility model discloses a set up agricultural film pivot, agricultural film guide roll, running gear on the frame and realize laying to the agricultural film, through setting up furrow opener and earthing wheel subassembly, can carry out ditching respectively and fill out soil and press the membrane work to the ridge that needs to lay, can realize the whole laying operation to the agricultural film high efficiently, and the device easy operation is convenient, especially suitable for one-man operation to use, can improve original agricultural film and lay inefficiency, cause the damage scheduling problem to labourer's health easily; the operation handrails are all set as S-shaped handrails, so that an operator can conveniently stand on one side of a ridge needing to be laid with the agricultural film to lay the agricultural film on the ridge, and the condition that the operator steps on the laid agricultural film to damage the agricultural film is prevented; the control switch plays a role in controlling whether the walking mechanism walks or not and the advancing speed, so that the device is convenient to control and operate; the furrow opener digs soil to frame both sides, and the earth that will ditch and turn over turns over the ridge outside, and the follow-up earthing wheel subassembly of being convenient for returns outside earth to turn over to carry out the compaction fixed to the plastic sheeting for farm use in ditching.

(2) The earthing wheel plays the effect of supporting frame and the interior plastic sheeting of compaction both sides ditch on earth, and the covering shovel is backfilled the plastic sheeting of both sides ditch with the earth that the furrow opener was shoveled on, and the arc shovel soil end of covering shovel can convenient and fast backfill earth, conveniently carries out work on next step.

(3) The compaction wheels on the outer side can compact the soil covered on the agricultural film in the ditch, so that the two sides of the agricultural film are stably buried in the soil, and the effect of fixing the agricultural film is achieved; the inner anti-skid outer ring plays a role in preventing the earthing wheel from deviating and preventing the compaction wheel from deviating out of the two side ditches; the compaction is protruding to play the purpose that compresses tightly earth on the plastic sheeting for farm use, and the protection gum cover plays and prevents that the antiskid outer lane from contacting the back with the plastic sheeting for farm use, fish tail or damage plastic sheeting for farm use.

(4) The pair of clamping pieces can fix the agricultural film roll on the agricultural film rotating shaft, so that the agricultural film roll rotates along with the agricultural film rotating shaft, the semicircular fixing cylinder is matched with the fixing chuck, the semicircular fixing cylinder is fixed with the agricultural film rotating shaft, the agricultural film roll is conveniently driven to move, a plurality of groups of fixing screw holes are designed to be convenient to adjust, the clamping pieces can be adaptive to various agricultural film rotating shafts, the production and the use are convenient, and the anti-falling screw holes play a role in fixing the fixing chuck; the major arc type fixing clamping piece consists of a plurality of arc type fixing pieces connected through a fixing rotating shaft, and the arc type fixing pieces are in clearance fit with each other, so that the arc type fixing pieces can extend under the action of a pull-back spring and tightly push against the inner surface of a hollow roll core of the agricultural film roll to connect the clamping piece and the agricultural film roll into a whole; the pullback spring plays a role in extending the U-arc type fixing clamping piece, so that the U-arc type fixing clamping piece extends and is in close contact with the agricultural film roll hollow roll core.

(5) The agricultural film compactor can compact the agricultural film roll on the agricultural film rotating shaft, so that the agricultural film roll is prevented from rapidly rolling along with inertia when the agricultural film is laid, a large amount of scattered agricultural film is rolled out from the agricultural film roll and is accumulated on the frame, and the device cannot carry out normal agricultural film laying work; the movable support plays a role in supporting the pressing roller to enable the pressing roller to continuously extrude the agricultural film roll, one end of the movable support is fixed on the frame through a support rotating shaft arranged on the frame and is rotatably connected with the support rotating shaft, the agricultural film on the agricultural film roll is gradually reduced when the agricultural film is laid, the pressing spring pulls one end of the pressing roller on the movable support to gradually move downwards, at the moment, one end of the movable support rotates on the support rotating shaft to enable the pressing roller to continuously cling to the agricultural film roll, the other end of the movable support is rotatably connected with the pressing roller, and the pressing roller is convenient to be matched with the agricultural film roll to continuously rotate; the compression spring plays a role in pulling the movable support, so that the compression roller can continuously cling to the agricultural film roll.

(6) The rolling bearing is matched with the external threads at the two ends of the agricultural film rotating shaft through the internal threads on the inner ring of the rolling bearing, so that the rolling bearing is conveniently fixed at the two ends of the agricultural film rotating shaft, and the fixing piece on the rolling groove plays a role in fixing the rolling bearing; the tool barrel plays a role in placing tools such as a cutter and the like, and is convenient for cutting the agricultural film roll or maintaining the device. The control switch is matched with the travelling mechanism to play a role in controlling whether the travelling mechanism travels or not and the travelling speed, so that the device is convenient to control and operate.

To sum up, the utility model discloses a set up plastic sheeting for farm use pivot, plastic sheeting for farm use guide roll, running gear on the frame and realize laying to the plastic sheeting for farm use, through setting up furrow opener and earthing wheel subassembly, can ditch respectively and fill out soil press mold work to the field ridge that needs to be laid, can high efficiency realize laying the operation to the whole of plastic sheeting for farm use to the device easy operation is convenient, especially be fit for one-man operation and use, can improve original plastic sheeting for farm use and lay inefficiency, cause the damage scheduling problem to the labourer health easily.

Drawings

Fig. 1 is a plan view of the present invention in example 1 (tool barrel not shown);

fig. 2 is a right side view of the present invention (not showing the tool barrel) in embodiment 1;

FIG. 3 is a schematic view showing the construction of a soil covering wheel in example 1;

FIG. 4 is a schematic view of the structure of a retainer in embodiment 1;

FIG. 5 is a schematic view showing the structure of the agricultural film presser in example 1.

In the figure, 1, a vehicle frame, 2, a furrow opener, 3, an agricultural film guide roller, 4, an agricultural film rotating shaft, 5, a clamping piece, 6, an engine component, 7, an operation handrail, 8, a control switch, 9, an agricultural film compressor, 10, a traveling wheel, 11, a soil covering shovel, 12, a soil covering wheel, 1201, a soil covering wheel shaft, 1202, a compaction wheel, 1203, a protective wheel, 501, an anti-dropping screw hole, 502, a pullback spring, 503, a major arc type fixing clamping piece, 504, an arc type fixing piece, 505, a fixing screw hole, 506, a fixing clamping head, 507, a semicircular type fixing barrel, 901, a support rotating shaft, 902, a movable support, 903, a compression roller, 904 and a compression spring.

Detailed Description

The present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the invention.

Example 1:

the laying device for the fully-degradable biomass agricultural film is structurally shown in figures 1-5 and comprises a frame 1, wherein a travelling mechanism is arranged on the frame 1, an agricultural film rotating shaft 4 and an agricultural film guide roller 3 in clearance fit with the agricultural film rotating shaft 4 are arranged on the frame 1, and the agricultural film rotating shaft 4 is movably connected with a pair of rolling grooves arranged on the frame 1; both sides of the head end of the frame 1 are provided with furrow openers 2, and both sides of the tail end of the frame 1 are provided with soil covering wheel assemblies matched with the furrow openers 2; the tail end of the frame 1 is provided with a pair of operating handrails 7 which are detachably connected with the frame 1, and the operating handrail 7 on one side is provided with a control switch 8; the walking mechanism comprises a pair of walking wheels 10 arranged at the head end of the frame 1 and an engine assembly 6 arranged on the frame 1, and the output end of the engine assembly 6 is connected with the walking wheels 10 through a transmission; the furrow opener 2 turns soil towards two sides of the frame 1, turns the soil turned out by ditching to the outer side of the ridge, and is convenient for a subsequent soil covering wheel assembly to turn the soil on the outer side back into the ditches to compact and fix the agricultural film; operation handrail 7 all establishes to S type handrail, makes things convenient for the operator to stand and carries out the plastic film at the ridge one side that needs laid the plastic film and lay to this ridge, prevents to step on laying the plastic film of completion, causes the destruction to the plastic film. An agricultural film presser 9 matched with the agricultural film rotating shaft 4 is further arranged on the frame 1, the agricultural film presser 9 comprises a movable support 902 movably connected with the frame 1, a pressing roller 903 rotatably connected with the movable support 902 is arranged at one end, away from the frame 1, of the movable support 902, and the pressing roller 903 is matched with the agricultural film rotating shaft 4; the movable support 902 is provided with a compression spring 904. Rolling bearings matched with the rolling grooves are arranged at the end parts of the two ends of the agricultural film rotating shaft 4, external threads are arranged at the two ends of the agricultural film rotating shaft 4, internal threads matched with the external threads are arranged on the inner ring of each rolling bearing, and fixing parts matched with the rolling bearings are arranged on the rolling grooves; the operating handle 7 is provided with a tool cylinder. The control switch 8 is connected with the traveling mechanism.

The soil covering wheel assembly comprises a soil covering wheel 12, the soil covering wheel 12 is fixedly connected with the frame 1 through a soil covering wheel shaft 1201 arranged at the axle center of the soil covering wheel 12, and a soil covering shovel 11 is arranged at one end of the wheel shaft far away from the frame 1; the soil covering shovel 11 comprises a fixed end, one end of the fixed end is fixedly connected with the wheel shaft, the other end of the fixed end is an arc-shaped soil shoveling end which is arranged close to the walking wheel 10, and the inner arc surface of the arc-shaped soil shoveling end is arranged close to the axis of the frame 1. The cutting blade 11 is fixed to the soil covering wheel axle 1201 and does not move with the soil covering wheel 12. The outer circle of the soil covering wheel 12 comprises an outer compaction wheel 1202 and an inner protection wheel 1203, and the diameter of the compaction wheel 1202 is larger than that of the protection wheel 1203; the compaction wheel 1202 is provided with compaction protrusions which are uniformly distributed, and the protection wheel 1203 is sleeved with a protection rubber sleeve.

Be equipped with a pair of chucking spare 5 on plastic sheeting pivot 4, arbitrary chucking spare 5 includes one end and plastic sheeting pivot 4 matched with semicircle type solid fixed cylinder 507, one side of semicircle type solid fixed cylinder 507 is equipped with major arc type fixed fastener 503, major arc type fixed fastener 503 includes a plurality of arc type stationary blade 504 of connecting through fixed rotating shaft, clearance fit between the arc type stationary blade 504, be equipped with back-pull spring 502 on the major arc type fixed fastener 503, back-pull spring 502 both ends are fixed respectively on the arc type stationary blade 504 of the fixed fastener 503 both ends tip of major arc type. One end of the semicircular fixing cylinder 507 is provided with a fixing chuck 506, and the fixing chuck 506 is rotationally connected with the other end of the semicircular fixing cylinder 507; the fixing chuck 506 is provided with a plurality of sets of fixing screw holes 505, and any set of fixing screw holes 505 is matched with a set of anti-falling screw holes 501 arranged at the other end of the semicircular fixing cylinder 507.

When the agricultural film roll is installed, firstly, the agricultural film rotating shaft 4 penetrates through the hollow roll core at the center of the agricultural film roll, and the diameter of the hollow roll core is larger than that of the agricultural film rotating shaft 4, therefore, a gap is formed between the hollow roll core and the agricultural film rotating shaft 4, then the clamping pieces 5 are respectively installed on two sides of the agricultural film roll, the major arc type fixing clamping pieces 503 of the clamping pieces 5 are installed towards the agricultural film roll, the major arc type fixing clamping pieces 503 are tightened by using a binding tape or a rope and the like, so that the arc type fixing clamping pieces 504 are tightly attached, at the moment, the pull-back spring 502 is in a stretching state, then the major arc type fixing clamping pieces 503 are plugged into the gap between the hollow roll core and the agricultural film rotating shaft 4, the tightened articles are cut off or loosened, the arc type fixing pieces 504 at two ends of the major arc type fixing clamping pieces 503 are stretched under the pulling of the pull-back spring 502, and adjacent arc type fixing clamping pieces 504 are sequentially, the extended major arc type fixing clamp 503 is firmly attached to the hollow roll core at the center of the agricultural film roll; respectively installing a pair of clamping pieces 5 at two ends of an agricultural film roll according to the method, after the clamping pieces 5 are installed, placing the agricultural film roll on a proper position on an agricultural film rotating shaft 4, respectively fixing semicircular fixing cylinders 507 on the clamping pieces 5 at the two ends, rotating a fixing chuck 506 on the semicircular fixing cylinder 507 to enable fixing screw holes 505 on a group of proper positions on the fixing chuck 506 to move to anti-falling screw holes 501, fixing the fixing screw holes 501 and the agricultural film roll by using fixing screws, after the fixing is completed, the fixing chuck 506 and the agricultural film rotating shaft 4 form a stable fixed relation, and after the fixing of the semicircular fixing cylinders 507 is completed, fixing the clamping pieces 5 at the two ends is completed; then fix antifriction bearing respectively at 4 both ends of plastic sheeting for farm use pivot, with plastic sheeting for farm use collet 9 pulling the plastic sheeting for farm use book top, then fix the fixing bearing in the roll inslot on frame 1, after the plastic sheeting for farm use pivot 4 is fixed to be accomplished, pull out the plastic sheeting for farm use book on the plastic sheeting for farm use book, after the plastic sheeting for farm use winds to plastic sheeting for farm use guide roll 3, pull out the plastic sheeting for farm use back to frame 1 tail end, the plastic sheeting for farm use is rolled up the installation and is accomplished.

When the device is in use, the agricultural film at the tail end of the frame 1 is fixed at one end of a ridge, the engine assembly 6 is started, the control switch 8 is turned on, a user holds the operation handrail 7 at one side of the ridge, the engine assembly 6 drives the travelling wheels 10 to move, the furrow opener 2 is inserted into soil to carry out ditching operation, the furrow opener 2 turns the soil towards two sides of the frame 1, the soil turned out by ditching is turned to the outer side of the ridge, the soil at the outer side is conveniently turned back to the ditching by the subsequent covering wheel assembly to compact and fix the agricultural film, when the device moves, because one end part of the agricultural film is fixed at one end of the ridge, the agricultural film roll on the agricultural film rotating shaft 4 starts to roll, the agricultural film roll is tiled on the ridge through the agricultural film guide roller 3, two sides of the agricultural film tiled on the ridge naturally hang down in the ditches at two sides, then the covering shovel 11 on the covering wheel 12 turns the turned soil back to the ditching, two sides, the moving compaction wheel 1202 starts to compact soil in the ditch, so that two sides of the agricultural film are fixed in the ditches at two sides, the protection wheel 1203 at the inner side can prevent the compaction wheel 1202 from shifting to the agricultural film, the purpose of protecting the agricultural film is achieved, the compaction bulge on the compaction wheel 1202 plays a role in compacting the soil on the agricultural film, and the protection rubber sleeve plays a role in protecting the agricultural film; the device continuously moves, the agricultural film roll on the agricultural film rotating shaft 4 is gradually reduced, the movable support 902 on the agricultural film presser 9 rotates downwards on the support rotating shaft 901 under the pulling of the pressing spring 904, so that the pressing roller 903 continuously presses the agricultural film roll, and the agricultural film stacking phenomenon of the agricultural film roll due to inertia is prevented; when the agricultural film on the agricultural film roll is used up, the agricultural film roll is replaced according to the agricultural film roll installation method.

Example 2:

the laying device for the fully degradable biomass agricultural film is different from the laying device in the embodiment 1 in that: frame 1 tail end is equipped with and rotates the agricultural film cleaning roller of being connected through cleaning axle and frame 1, and agricultural film cleaning roller plays and cleans the effect of laying the agricultural film of accomplishing, prevents to lay in-process earth and covers on agricultural film, influences the seed budding under the agricultural film.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but rather as the following description is intended to cover all modifications, equivalents and improvements falling within the spirit and scope of the present invention.

Claims

1. The laying device for the fully-degradable biomass agricultural film comprises a frame, wherein a walking mechanism is arranged on the frame, and the laying device is characterized in that an agricultural film rotating shaft and an agricultural film guide roller in clearance fit with the agricultural film rotating shaft are arranged on the frame, and the agricultural film rotating shaft is movably connected with a pair of rolling grooves arranged on the frame; furrow openers are arranged on two sides of the head end of the frame, and soil covering wheel assemblies matched with the furrow openers are arranged on two sides of the tail end of the frame; the tail end of the frame is provided with a pair of operating handrails detachably connected with the frame, and the operating handrail on one side is provided with a control switch; the walking mechanism comprises a pair of walking wheels arranged at the head end of the frame and an engine assembly arranged on the frame, and the output end of the engine assembly is connected with the walking wheels through a transmission.

2. The paving device for the fully degradable biomass agricultural film as claimed in claim 1, wherein the soil covering wheel assembly comprises a soil covering wheel, the soil covering wheel is fixedly connected with the frame through a soil covering wheel shaft arranged at the axle center of the soil covering wheel, and a soil covering shovel is arranged at one end of the wheel shaft far away from the frame; the soil covering shovel comprises a fixed end, one end of the fixed end is fixedly connected with the wheel shaft, the other end of the fixed end is an arc-shaped soil shoveling end which is close to the traveling wheel, and the inner arc surface of the arc-shaped soil shoveling end is close to the axle center of the frame.

3. The paving device for the fully degradable biomass agricultural film as claimed in claim 2, wherein the soil covering wheel comprises an outer compaction wheel and an inner protection wheel, and the diameter of the compaction wheel is larger than that of the protection wheel; the compaction wheel is provided with compaction bulges which are uniformly distributed, and the protection wheel is sleeved with a protection rubber sleeve.

4. The paving device for the fully degradable biomass agricultural film according to claim 1, wherein a pair of clamping members are arranged on the agricultural film rotating shaft, any clamping member comprises a semicircular fixing cylinder with one end matched with the agricultural film rotating shaft, a major arc type fixing clamping member is arranged on one side of the semicircular fixing cylinder, the major arc type fixing clamping member comprises a plurality of arc type fixing pieces connected through the fixing rotating shaft, a pull-back spring is arranged on the major arc type fixing clamping member, and two ends of the pull-back spring are respectively fixed on the arc type fixing pieces at two end parts of the major arc type fixing clamping member.

5. The paving device for the fully degradable biomass agricultural film as claimed in claim 4, wherein one end of the semicircular fixing cylinder is provided with a fixing chuck which is fixedly connected with the other end of the semicircular fixing cylinder; the fixing chuck is provided with a plurality of groups of fixing screw holes, and any group of fixing screw holes is matched with a group of anti-falling screw holes arranged at the other end of the semicircular fixing cylinder.

6. The paving device for the fully-degradable biomass agricultural film according to claim 5, wherein the frame is further provided with an agricultural film presser matched with the agricultural film rotating shaft, the agricultural film presser comprises a movable bracket movably connected with the frame, one end of the movable bracket, which is far away from the frame, is provided with a pressing roller rotatably connected with the movable bracket, and the pressing roller is matched with the agricultural film rotating shaft; and the movable support is provided with a compression spring.

7. The laying device for the fully degradable biomass agricultural film according to claim 1, wherein rolling bearings matched with the rolling grooves are arranged at the end parts of the two ends of the agricultural film rotating shaft; and the operating armrest is provided with a tool cylinder.

8. The paving device for the fully degradable biomass agricultural film as claimed in claim 1, wherein the control switch is connected with a walking mechanism.