Greenhouse film mulching device

Abstract

The invention provides a greenhouse film mulching device, which is arranged outside a greenhouse and comprises a traction frame, a film mulching device, a film mulching device and a film mulching device, the thin film traction assembly comprises a moving frame, a driving mechanism for driving the moving frame to move, a clamping traction mechanism for clamping and pulling one end of a thin film and a supporting mechanism for vertically placing a thin film coiled material, and the moving frame is movably arranged on the traction frame through the driving mechanism; the clamping traction mechanism comprises a power source, a traction block and a clamping block, the traction block is fixedly installed on the power source and provided with an installation hole, and the clamping block is provided with a clamping end used for clamping one end of a film and an installation end used for being installed in the installation hole of the traction block. And after the thin film is clamped, the mounting end is inserted into the mounting hole. The upper end of a greenhouse can be efficiently covered with a film through the film covering device, the efficiency is improved, and the labor amount is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural planting equipment, and in particular relates to a greenhouse film covering device. Background Art

[0002] The use of greenhouse covering plastic film for planting is to artificially create a suitable ecological environment, adjust the vegetable production season, regulate market demand, and promote high-quality and high-yield plants. It is one of the effective means to increase farmers' income.

[0003] Planting greenhouses are generally made of bamboo poles, cement poles, light steel pipes or pipes as the frame, made into columns, pull rods, arch rods and pressure rods, covered with plastic film to become an arched material shed. It has a simple structure, low cost and good cold-proof and warming effect.

[0004] However, in the process of covering the greenhouse with film, there are problems such as the high roof and the film is easily damaged when it is pulled against the frame, which makes covering difficult, requires more labor, takes a long time, and is inefficient. Especially in windy weather, the difficulty coefficient is greater and there is a certain degree of danger. In addition, when the sunlight is too strong, shading work is required, which requires manual construction of shading nets or shading cloths, which is cumbersome and cannot provide shading in time.

[0005] Therefore, the above problems need to be solved. Summary of the invention

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a greenhouse covering device for solving the technical problems in the prior art that, due to the soft nature of the plastic film, when the greenhouse is too high, the top film is difficult to cover, the covering process becomes extremely cumbersome, the efficiency is low, and labor is easily wasted.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides a greenhouse film covering device, comprising: A traction frame, which is installed outside the greenhouse; The film pulling assembly comprises a moving frame, a driving mechanism for driving the moving frame to move, and a A clamping and traction mechanism for clamping and traction of one end of the film and a supporting mechanism for vertically placing the film coil, the mobile frame is movably arranged on the traction frame through the driving mechanism, the clamping and traction mechanism comprises a power source, a traction block and a clamping block, the traction block is fixedly mounted on the power source and the traction block is provided with a mounting hole, the clamping block has a clamping end for clamping one end of the film and a mounting end for mounting in the mounting hole of the traction block, the mounting end is inserted into the mounting hole after the film is clamped, and the moving direction of the mobile frame is perpendicular to the moving direction of the clamping block; A sunshade component is also arranged in the greenhouse.

[0008] In this way, the film is placed on the support mechanism. After one end of the film is clamped by the clamping block, the power source drives the film to move in the length direction of the greenhouse. After the movement is completed, the driving mechanism drives the film to move in the width direction of the greenhouse, so as to drive the film to the top of the greenhouse.

[0009] Preferably, the moving frame has a chute with a T-shaped cross-section. The power source includes a first motor, a belt and a synchronous pulley set. The belt is arranged in a ring through the synchronous pulley set, passes through the chute and then is placed above the moving frame and then in the chute. The traction block is arranged in the chute and fixedly connected with the belt. The first motor is fixedly installed above the moving frame, and the first motor cooperates with the belt through the synchronous pulley set. By using the motor and the belt, the traction block can be more stable during the movement, and the moving distance of the traction block can be longer.

[0010] Preferably, the driving mechanism includes a connecting seat, a roller, a second motor and a lead screw. The motor is fixedly installed on the traction frame. The lead screw is rotatably installed on the traction frame. The connecting seat has a threaded hole and is screwed on the lead screw through the threaded hole. The lower end of the connecting seat is fixedly installed on the upper end of the moving frame. The roller is rotatably installed in the connecting seat and is in rolling cooperation with the upper end of the traction frame. The output end of the second motor and one end of the lead screw are engaged by two gears.

[0011] Preferably, the support mechanism is arranged on one side or both sides of the traction frame and includes an upper limit post, a lower limit post, a support table and an adjustable frame. The upper limit post is rotatably installed on the traction frame through a mounting bracket. The support table is fixedly installed at the lower end of the lower limit post. The part of the lower limit post below the support table is rotatably installed on the adjustable frame through a rolling bearing. The adjustable frame is installed on the traction frame in an adjustable up-and-down manner and is fixed by a locking bolt. The axes of the upper limit post and the lower limit post are collinear and perpendicular. By using the support mechanism, the film roll is placed on the rotatably arranged support table, which is convenient for the film to be pulled by the clamping and traction mechanism.

[0012] Preferably, an auxiliary mechanism for assisting in clamping the film is provided below the moving frame. The auxiliary mechanism is linearly arranged on the moving frame and includes symmetrically arranged brackets, clamping wheels and elastic members. The brackets are symmetrically installed below the moving frame. The clamping wheels are rotatably installed on the adjacent sides of the brackets through elastic members, and the symmetric clamping wheels are in contact with each other. The clamping wheels are located below the clamping blocks. Through the elastic members and the rotatably arranged clamping wheels, while being able to clamp the upper end of the film, it is convenient for the traction block to drive the film to move in the length direction of the greenhouse, and the upper side of the film is always clamped and supported.

[0013] Preferably, the traction block has a mounting hole, and a universal ball for assisting in supporting the traction block is installed in the mounting hole. The universal ball is arranged to roll in the chute. The universal ball can support the traction block and does not affect the movement of the traction block.

[0014] Preferably, one or more tracks are horizontally arranged above the traction frame. There is a limiting platform in the middle of the track. The rollers and the connecting seats are arranged on each track, and the rollers have depressions that cooperate with the limiting platform. By using the cooperation of the rollers and the limiting platform, the rollers roll in a straight line.

[0015] Preferably, one or more film pressing-down mechanisms are further provided on one side of the traction frame. The film pressing-down mechanism includes a mounting frame, a connecting plate, an electric telescopic rod and a pressing plate. The mounting frame is fixedly installed on the traction frame. The fixed end of the electric telescopic rod is fixedly arranged on the mounting frame. The movable end of the electric telescopic rod moves vertically downward. The connecting plate is fixedly installed at the top of the movable end of the electric telescopic rod. The pressing plate is rotatably installed below the connecting plate. A number of mushroom head suction cups are linearly arranged on the side of the connecting plate in contact with the film. After the moving frame drives the film to the other side in the width direction of the greenhouse, through the action of the electric telescopic rod, the suction cups on the connecting plate are attached to the upper side of the film, which is convenient for pulling the film downward continuously, so that the film on the side of the film pressing-down mechanism reaches the designated position.

[0016] Preferably, the top of the greenhouse is arranged in an arc shape. A rolling pipe is rotatably arranged between the skeletons. The rolling pipes are evenly arranged on the top of the greenhouse. The tangent of the surface of the rolling pipe is higher than the tangent of the top of the greenhouse. By using the rolling rolling pipes, when the film is pulled in the width direction, the friction between the film and the greenhouse is reduced, which is more labor-saving and can avoid situations such as the film being scratched.

[0017] Preferably, the sunshade net roll is rotatably arranged on the placing seat through a rotating shaft, the rotating shaft is rotatably installed on the placing seat, the winding and unwinding mechanism includes a third motor, a second synchronous pulley set, a third synchronous pulley set and a pulling rope mechanism. The third motor is fixedly installed on the placing seat, the third motor is connected to one end of the rotating shaft through the second synchronous pulley set, and the pulling rope mechanism is connected to one end of the rotating shaft through the third synchronous pulley set.

[0018] Preferably, the pulling rope mechanism includes a sunshade net fixing rod, a roller frame, a roller seat, a pulling rope, a fixed pulley set and a winding disc. The roller frame is fixedly installed in the greenhouse along the length direction of the greenhouse. The roller frame has a rolling groove. The roller of the roller seat rolls in the rolling groove. The winding disc is vertically and rotatably installed outside the placing seat and is connected to the rotating shaft through the third synchronous pulley set. The sunshade net fixing rod is fixedly installed above the roller seat. The fixed pulley set is fixedly installed in the greenhouse. The pulling rope passes through the fixed pulley set and is fixedly connected to the roller seat and the winding disc at both ends respectively.

[0019] After the third motor is started, the rotating shaft can be rotated, and at the same time, the winding disc and the sunshade net roll are driven to rotate. During the rotation process, the pulling rope is wound by the winding disc, so as to pull the roller seat to move on the roller frame, and the sunshade net fixing rod synchronously drives the sunshade net to move, so that the sunshade net covers the greenhouse and plays a role in shading.

[0020] The beneficial effects of the present invention are as follows: When using the present invention, the film is placed on the supporting mechanism. After one end of the film is clamped by the clamping block, the power source drives the film to move in the length direction of the greenhouse. After the movement is completed, the driving mechanism is used to drive the film to move in the width direction of the greenhouse, so as to drive the film to the top of the greenhouse. Such a setting can be more convenient and fast when covering the greenhouse with film, reduce the labor intensity of workers, and reduce the damage of the film during film covering. In addition, through the sunshade component, it is convenient to control the opening and closing of the sunshade net, control the temperature in the greenhouse, and facilitate the growth of plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It shows a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It shows a schematic diagram of the overall structure of the present invention from another direction.

[0023] Figure 3 It shows a partial structural schematic diagram of the film traction component.

[0024] Figure 4 It shows a structural schematic diagram of the clamping block and the traction block.

[0025] Figure 5 Shown is a partial structural schematic diagram of the driving mechanism.

[0026] Figure 6 Shown is a partial structural schematic diagram of the sunshade assembly.

[0027] Figure 7 Shown is a structural schematic diagram of the film pressing-down mechanism.

[0028] Figure 8 Shown is an installation structural schematic diagram of the connecting seat and the moving frame.

[0029] Figure 9 Shown is an installation structural schematic diagram of the limiting plate.

[0030] Figure 10 Shown is a partial structural schematic diagram of the support mechanism. Detailed implementation manners

[0031] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0032] Please refer to Figures 1 to 10 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0033] As Figures 1-2 shown, a greenhouse film covering device includes: a greenhouse 1, a traction frame 2, and a film traction assembly 3. The traction frame 2 is erected outside the greenhouse 1. The greenhouse 1 is made of a circular or square light steel pipe or pipe material as a skeleton, with an arc-shaped top, and rotatable rolling pipes 101 are arranged between the skeletons. The tangent of the outer surface of the rolling pipe 101 is slightly higher than the arc tangent of the greenhouse top, which can reduce the friction between the film and the skeleton when the film is pulled in the width direction, making it more labor-saving and avoiding situations such as the film being scratched.

[0034] Specifically, moving wheels facilitating the movement of the traction frame 2 can be arranged below the traction frame 2, and the traction frame can be moved to other greenhouses through the moving wheels to cover films for other greenhouses.

[0035] As Figures 3-5 shown, in this embodiment, the film traction assembly 3 includes a moving frame 310, a driving mechanism 320 for driving the movement of the moving frame 310, and a clamping and traction mechanism 330 for clamping and traction one end of the film. The moving frame 310 is movably arranged on the traction frame 2 through the driving mechanism 320, and the moving frame 310 has a chute 311 with a T-shaped cross-section.

[0036] Specifically, the clamping and traction mechanism 330 drives the film to move in the length direction of the greenhouse 1, including a traction block 331, a clamping block 332, a first motor 333, a first belt 334, and a plurality of first synchronous wheels 335. The first synchronous wheels 335 are rotatably installed on the moving frame 310 through an installation support 337, and can tension the first belt 334 on the first synchronous wheels 335. The first belt 334 is arranged in a vertically rotating ring shape, and the lower part is rotatably arranged in the chute 311 of the moving frame 310. The first motor 333 is fixedly installed on the moving frame 310. A second synchronous wheel 338 and a second belt 339 are arranged between the first motor 333 and the first synchronous wheels 335. The rotation of the first motor 333 drives the rotation of the second belt 339, thereby driving the rotation of the first synchronous wheels 335. The rotation of the first synchronous wheels 335 drives the rotation of the first belt 334. The traction block 331 is arranged in the chute 311 and is fixedly connected to the first belt 334. The first belt 334 drives the traction block 331 to move during rotation. The traction block 331 is square and has a mounting hole 340. The clamping blocks 332 are arranged in pairs, and have a clamping end 341 for clamping one end of the film and a mounting end 342 for mounting in the mounting hole 340 of the traction block 331. One side where the clamping ends are in contact has a plurality of engaging teeth that engage with each other. The engaging teeth can clamp the film therein. After clamping the film, the mounting end corresponds to the mounting hole of the traction block 331 and is square, and can be inserted and matched in the mounting hole. The square mounting hole can prevent the film from shifting caused by the rotation of the clamping block 332 during the process of pulling the film. The traction block 331 has a mounting hole, and a universal ball 312 is installed in the mounting hole. The universal ball 312 rolls in the chute 311 and can play an auxiliary supporting role during the movement of the traction block 331.

[0037] As Figure 3 or Figure 10As shown, in this embodiment, a support mechanism 7 for facilitating the unwinding of the film roll C is further provided. The support mechanism 7 is arranged on one side of the traction frame 2 and includes an upper limit post 710, a lower limit post 711, a support table 712, and an adjustable frame 713. The upper limit post 710 is installed on the traction frame 2 through a mounting bracket 714. The support table 712 is fixedly installed at the lower end of the lower limit post 710. A part of the lower limit post 711 below the support table 712 rotates on the adjustable frame 713 through a rolling bearing. The adjustable frame 713 is vertically adjustable and installed on the traction frame 2, and can be locked by a locking bolt 715. A locking surface 716 is provided on the traction frame on the side where the bolt 715 is locked. The locking surface 716 is arranged in a toothed shape along the vertical direction. After the bolt 715 is locked, it is stuck between the teeth of the locking surface 716. The axes of the upper limit post 710 and the lower limit post 711 are collinear and perpendicular.

[0038] As Figure 3 shown, in this embodiment, in order to reduce the influence of the self - gravity of the film during traction, an auxiliary mechanism 4 for auxiliary clamping of the upper end of the film is further provided. The auxiliary mechanism 4 is linearly arranged below the moving frame 310 and includes paired and symmetrically arranged brackets 410, clamping wheels 411, springs 412, and telescopic rods 413. The brackets 410 are vertically installed below the moving frame 310. The telescopic rods 413 are horizontally arranged, with one end installed at the lower end of the bracket 410 and the other end connected to the clamping wheel 411. The springs 412 are sleeved outside the telescopic rods and have both ends abutted against the bracket 410 and the clamping wheel 411. The two paired clamping wheels 411 abut against each other under the action of the springs 412 and the telescopic rods 413, and their height is lower than that of the clamping block 332. After the film is pulled by the pulling block 331, it passes above the clamping wheels 411. Under the action of the springs 412 and the telescopic rods 413, the film is clamped between the clamping wheels 411.

[0039] As Figure 5 or Figure 8As shown in the figure, in this embodiment, three tracks 321 are horizontally arranged in the width direction of the greenhouse 1 above the traction frame 2. The moving frame is arranged below the track through the driving component 320. The driving component 320 drives the moving frame 310 to move in the width direction of the greenhouse 1. The driving component 320 includes a connecting seat 322, a roller 323, a second motor 324 and a lead screw 325. The connecting seat 322 and the track 321 are arranged in pairs. The moving frame 310 is fixedly installed below the connecting seat 322. There is a passage 326 between the connecting seat 322 and the moving frame 310, which is the same as the width direction of the greenhouse 1. The track 321 passes through the passage 326. The roller 323 is rotatably installed on the connecting seat 322 and is located in the passage 326. There is an arc-shaped limiting platform 327 in the middle of the track 326. The roller 323 has a depression that cooperates with the limiting platform 327. When the roller 323 rolls on the track 321, it moves linearly along the limiting platform 327. The lead screw 325 is horizontally and rotatably installed on the traction frame 2 through two mounting blocks 328. The direction of the axis of the lead screw 325 is the same as the width direction of the greenhouse 1. One of the connecting seats 322 has a threaded hole and is screwed onto the lead screw 325 through the threaded hole. By rotating the lead screw 325, the connecting seat 322 moves. The second motor 324 is fixedly installed on the traction frame 2. The output end of the second motor 324 and one end of the lead screw 325 have meshing bevel gears 329. The second motor 324 drives the lead screw to rotate through the bevel gear 328.

[0040] As Figure 7 shown, in this embodiment, a film pressing-down mechanism 5 for removing the film from the clamping wheel is further arranged on the traction frame 2, including a mounting frame 510, a connecting plate 511, an electric telescopic rod 512 and a pressing plate 513. The mounting frame 510 is fixedly installed on the traction frame 2. The fixed end of the electric telescopic rod 512 is fixedly arranged on the mounting frame 510. The movable end of the electric telescopic rod 512 moves vertically downward. The connecting plate 511 is fixedly installed at the top of the movable end of the electric telescopic rod 512. The pressing plate 513 is rotatably installed below the connecting plate 511 through a rotating seat 516. Two rows of suction cups 514 are linearly arranged on the side of the pressing plate 513 in contact with the film. A guide rod 515 is fixedly arranged on the connecting plate 511. The guide rod 515 is arranged on both sides of the electric telescopic rod 512 and is in plug-in sliding fit with the mounting frame 510, playing a role of guiding and limiting the connecting plate 511 when the movable end of the electric telescopic rod 512 moves.

[0041] As Figure 6 or Figure 9As shown in the figure, in this embodiment, a sunshade component 6 for blocking sunlight is further provided in the greenhouse 1. The sunshade net or sunshade cloth is in a retracted state in the initial state. When sunshading is required, it is unrolled along the length direction of the greenhouse 1, so as to shade the plants below. A placement seat 610 is installed in the greenhouse. The sunshade net roll 611 is horizontally rotatably arranged on the placement seat 610 through a rotating shaft. A third motor 612 is installed on the placement seat 610. A second synchronous pulley group 614 is arranged between the output end of the third motor 612 and the rotating shaft 613. Through the second synchronous pulley group 614, the third motor 612 can drive the rotating shaft 613 to rotate. A winding disc 615 is also rotatably arranged on the placement seat 610. The winding disc 615 and the rotating shaft 613 are connected through a third synchronous pulley group 616.

[0042] A roller frame 617 is fixedly arranged along the length direction of the greenhouse 1. The roller frame 617 is arranged in a concave shape with a rolling groove 618. There is a roller seat 619 in the rolling groove 618. The roller seat 619 moves in the rolling groove 618 through a roller. A sunshade net fixing rod 620 for fixedly connecting the sunshade net is fixedly installed above the roller seat 619. The sunshade fixing rod 620 is horizontally arranged along the width direction of the greenhouse 1. A part of the outermost side of the sunshade net roll B is fixedly sleeved on the sunshade net fixing rod 620. A fixed pulley is arranged on the outer side of one end of the roller frame 617 away from the third motor 612. A plurality of fixed pulleys are linearly arranged along the length direction in the greenhouse 1. These fixed pulleys form a fixed pulley group 621. A limiting plate 622 is fixedly arranged in the rolling groove 618. The limiting plate has a through hole. One end of a pull rope (not shown in the figure) is fixedly connected to the roller seat, and the other end passes through the through hole 625 on the limiting plate 622 and is engaged with the fixed pulley group 621, and the other end is fixedly connected to the winding disc 615, and the pull rope is in a tensioned state.

[0043] Specifically, when sunshading, the third motor starts, drives the sunshade net roll on the rotating shaft to rotate, and at the same time drives the winding disc to rotate. The rotation of the winding disc can wind up the pull rope. After passing through the fixed pulley group, it pulls the roller seat to move in the rolling groove, so that the sunshade net fixing rod drives the sunshade net to move along the length direction of the greenhouse to the limiting plate. The rotatably arranged sunshade net roll facilitates the unrolling of the sunshade net; similarly, when sunshading is not required, the third motor drives the rotating shaft to reverse, winds up the sunshade net through the reverse rotation of the rotating shaft, pulls the roller seat to move to the initial position, and the pull rope on the winding disc is unwound.

[0044] Working principle: When lamination is required, insert the core of the film roll into the lower limit column and place it on the support table, move the adjustable frame and the film roll upward, insert the upper limit column into the upper end of the film roll core, lock the locking bolt on the adjustable frame, pull out the film, make one end of the film pass through the first pair of clamping wheels, clamp the upper end of the film with the clamping block, and install the clamping block on the traction block after clamping. Then start the first motor, the first motor drives the belt to move backward, thereby driving the traction block to move in the slide slot of the mobile frame. During the movement, the upper end of the film is clamped by the clamping wheels arranged on the mobile frame in sequence. After the traction block reaches the specified position on the rear side, the film is cut off at the initial position on the front side, and the second motor is started. The second motor drives the lead screw to rotate, thereby driving the connecting seat to move on the lead screw. The rod moves to the left, and the movement of the connecting seat drives the mobile frame to move to the left side of the greenhouse. After moving to the designated position, the film on the right is attached to the greenhouse due to its own gravity, and then the lower end of the right film is clamped on the greenhouse in turn with a film pressing clamp (the film pressing frame is existing). After the clamping is completed, the electric telescopic rod is started, and the moving end of the electric telescopic rod drives the pressure plate to move downward, and then abuts against the upper side of the film. The suction cup arranged on the pressure plate can adsorb the film under the action of pressure, thereby continuing to drive the film to move downward and break away from the clamping of the clamping wheel, and then make the left side of the film contact with the greenhouse body, and then use the film pressing clamp to clamp the left film on the greenhouse, and then let the electric telescopic rod be recovered, thereby realizing the film covering work on the top of the greenhouse.

[0045] When shading is required, the third motor starts, driving the sunshade net roll on the rotating shaft to rotate, and at the same time driving the winding disk to rotate. The rotation of the winding disk can reel in the pulley, and the roller seat is pulled to move in the rolling groove after passing through the fixed pulley group, so that the sunshade net fixing rod drives the sunshade net to move along the length direction of the greenhouse to the limit plate, and the rotating sunshade net roll is convenient for unwinding the sunshade net; similarly, when shading is not needed, the third motor drives the rotating shaft to reverse, and the sunshade net is reeled by reversing the rotating shaft, and the roller seat is pulled to move to the initial position, and the pull rope on the winding disk is unwound.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A greenhouse film covering device is arranged outside the greenhouse, and is characterized in that, Including: A traction frame which is erected outside the greenhouse; A film traction assembly, which includes a moving frame, a driving mechanism for driving the moving frame to move, a clamping and traction mechanism for clamping and traction one end of the film, and a support mechanism for vertically placing the film coil. The moving frame is movably arranged on the traction frame through the driving mechanism. The clamping and traction mechanism includes a power source, a traction block, and a clamping block. The traction block is fixedly installed on the power source and is provided with a mounting hole. The clamping block has a clamping end for clamping one end of the film and a mounting end for mounting in the mounting hole of the traction block. After the film is clamped, the mounting end is inserted into the mounting hole. The moving direction of the moving frame is perpendicular to the moving direction of the clamping block; A sunshade assembly for shading is also arranged in the greenhouse. The moving frame has a chute with a T-shaped cross-section. The power source includes a first motor, a belt, and a synchronous pulley set. The belt is arranged in a loop through the chute through the synchronous pulley set, passes above the moving frame, and then is placed in the chute. The traction block is arranged in the chute and is fixedly connected to the belt. The first motor is fixedly installed above the moving frame, and the first motor cooperates with the belt through the synchronous pulley set.

2. The greenhouse film covering device according to claim 1, characterized in that: The driving mechanism includes a connecting seat, a roller, a second motor, and a lead screw. The second motor is fixedly installed on the traction frame. The lead screw is rotatably installed on the traction frame. The connecting seat has a threaded hole and is screwed onto the lead screw through the threaded hole. The lower end of the connecting seat is fixedly installed on the upper end of the moving frame. The roller is rotatably installed in the connecting seat and is in rolling cooperation with the upper end of the traction frame. The output end of the second motor is connected to one end of the lead screw.

3. The greenhouse film covering device according to claim 2, characterized in that: The support mechanism is arranged on one side of the traction frame and includes an upper limit post, a lower limit post, a support platform, and an adjustable frame. The upper limit post is rotatably installed on the traction frame through a mounting bracket. The support platform is fixedly installed at the lower end of the lower limit post. The part of the lower limit post below the support platform rotates on the adjustable frame through a rolling bearing. The adjustable frame is installed on the traction frame in an adjustable up-and-down manner and is locked and fixed by bolts. The axes of the upper limit post and the lower limit post are collinear and perpendicular.

4. A greenhouse film covering device according to claim 1, characterized in that: An auxiliary mechanism for assisting in clamping the film is arranged below the moving frame. The auxiliary mechanism is linearly arranged on the moving frame and includes symmetrically arranged brackets, clamping wheels, and elastic members. The brackets are symmetrically installed below the moving frame. The clamping wheels are rotatably installed on the adjacent sides of the brackets through elastic members, and the symmetric clamping wheels are in contact with each other. The clamping wheels are located below the clamping block.

5. The greenhouse film covering device according to claim 3, characterized in that: A track is horizontally arranged above the traction frame along the width direction of the greenhouse. The track has a limit platform in the middle. The roller and the connecting seat are both rollingly arranged on each track, and the roller has a depression for cooperating with the limit platform of the track. The traction block has a mounting hole, and a universal ball for assisting in supporting the traction block is installed in the mounting hole. The universal ball is rollingly arranged in the chute.

6. The greenhouse film covering device according to claim 3, characterized in that: ​ 7. A greenhouse film covering device according to any one of claims 1 to 6, characterized in that: One side of the traction frame is further provided with a film pressing-down mechanism, which includes a mounting frame, a connecting plate, an electric telescopic rod and a pressing plate. The mounting frame is fixedly installed on the traction frame. The fixed end of the electric telescopic rod is fixedly arranged on the mounting frame. The movable end of the electric telescopic rod moves vertically downward. The connecting plate is fixedly installed at the top end of the movable end of the electric telescopic rod. The pressing plate is rotatably installed below the connecting plate. A plurality of suction cups are linearly arranged on one side of the pressing plate in contact with the film.

8. A greenhouse film covering device according to claim 1, characterized in that: The sunshade component includes a sunshade net roll, a placing seat and a winding and unwinding mechanism. The winding and unwinding mechanism includes a rotating shaft, a third motor, a second synchronous pulley set, a third synchronous pulley set and a pulling rope mechanism. The placing seat is fixedly installed on the greenhouse. The rotating shaft is fixedly inserted into the core of the sunshade net roll, and the rotating shaft is rotatably installed on the placing seat. The third motor is fixedly installed on the placing seat. The third motor is connected to one end of the rotating shaft through the second synchronous pulley set. The pulling rope mechanism is connected to one end of the rotating shaft through the third synchronous pulley set.

9. The greenhouse film covering device according to claim 8, characterized in that: The pulling rope mechanism includes a sunshade net fixing rod, a roller frame, a roller seat, a pulling rope, a fixed pulley set and a winding disc. The roller frame is fixedly installed in the greenhouse along the length direction of the greenhouse. The roller frame has a rolling groove. The roller of the roller seat rolls in the rolling groove. The winding disc is vertically rotatably installed outside the placing seat and is connected to the rotating shaft through the third synchronous pulley set. The sunshade net fixing rod is fixedly installed above the roller seat and is arranged along the width direction of the greenhouse. The outer end part of the sunshade net roll is fixedly connected to the sunshade net fixing rod. The fixed pulley set is fixedly installed on the roller frame and in the greenhouse. The pulling rope passes through the fixed pulley set and is fixedly connected to the roller seat and the winding disc at both ends respectively.

10. A greenhouse film covering device according to any one of claims 1 to 6, 8 or 9, characterized in that, The top of the greenhouse is arranged in an arc shape. A rolling pipe is rotatably arranged between the skeletons. The rolling pipes are evenly arranged on the top of the greenhouse. The tangent line of the surface of the rolling pipe is higher than the tangent line of the arc-shaped top of the greenhouse.

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