A kind of ground film integral recovery device

Abstract

A ground film integral recovery device comprises a frame, on which a supporting device and an umbrella-shaped film rolling device arranged in a line are provided; the supporting device comprises a rotatable supporting roller for supporting the ground film when rolling the film; the umbrella-shaped film rolling device comprises a first film rolling shaft and a second film rolling shaft which are detachably connected, the first film rolling shaft is provided with a head support plate and an intermediate sliding support block, the second film rolling shaft is provided with a tail sliding support block, a plurality of first film rolling support rods and second film rolling support rods are respectively uniformly distributed circumferentially outside the first film rolling shaft and outside the second film rolling shaft, the first film rolling support rod and the intermediate sliding support block are hinged with an umbrella-shaped support frame, and the intermediate sliding support block and the tail sliding support block are jointly connected with a control rod with a limiting device. The present application realizes efficient and accurate integral recovery of ground film, greatly improving operation efficiency; and avoids pollution of soil and surrounding environment by residual ground film, thereby playing an important role in protecting farmland environment and building beautiful villages.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-efficiency, precise, environmentally friendly and multifunctional agricultural machinery and equipment, and in particular relates to a ground film integral recovery device. Background Art

[0002] At present, mulch film covering cultivation technology is widely used in the field of agricultural planting technology in my country. However, if the mulch film is not recovered in time after use, it will cause pollution to the soil and the surrounding environment. At the same time, it will affect soil permeability, air circulation and irrigation, and then affect the survival and reproduction of microorganisms in the soil, and ultimately affect the development of crop roots, plant growth, and fruit yield and quality.

[0003] Traditional mulch film recycling generally adopts manual operation, which is very inefficient. In recent years, mechanized automatic recycling devices have gradually become popular. For example, Chinese invention patent application CN201910563309.4 discloses an automatic mulch film recycling machine, which specifically includes a recycling frame, a soil removal support mechanism, and a film rolling device, which realizes the automatic recycling of mulch film. However, after the film is rolled, the patent states that since the rolled mulch film is wound around the first conical roller and the second conical roller, even if the first conical roller and the second conical roller are separated, the rolled mulch film cannot be easily removed from the first conical roller and the second conical roller, which affects subsequent use. Summary of the invention

[0004] The purpose of the present invention is to provide a ground film integral recovery device to solve the deficiencies of the prior art.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A ground film integral recovery device comprises a frame, wherein the frame drives the entire machine to move under the action of a self-contained or external power device, and the frame is provided with a supporting device and an umbrella-shaped film rolling device arranged in a line;

[0007] The supporting device comprises a rotatable supporting roller for supporting the ground film when the film is rolled up;

[0008] The umbrella-shaped film rolling device includes a first support seat and a second support seat which are relatively arranged, and the first support seat is rotatably connected to the first film rolling shaft, and the second support seat is rotatably and detachably connected to the second film rolling shaft, and the tail of the first film rolling shaft and the head of the second film rolling shaft are detachably connected; the first film rolling shaft is provided with a head support plate and an intermediate sliding support block that can slide along the first film rolling shaft, and the second film rolling shaft is provided with a tail sliding support block that can slide along the second film rolling shaft, and the tail sliding support block is hinged along its circumference, and a plurality of radial support rods are hingedly connected to the tail sliding support block along its circumference; a plurality of first film rolling support rods and second film rolling support rods are uniformly distributed circumferentially outside the first film rolling shaft and the second film rolling shaft respectively; the head end of the first film rolling support rod is hinged to the head support plate, the tail end of the second film rolling support rod is hinged to the corresponding radial support rod, and the other ends of the first film rolling support rod and the second film rolling support rod are hinged; an umbrella-shaped support frame is hinged between the intermediate sliding support block and the first film rolling support rod.

[0009] The middle sliding support block and the rear sliding support block are jointly connected with a control rod with a limiting device; when the control rod is pulled toward the second support seat, the middle sliding support block and the rear sliding support block are driven to move toward the second support seat, and the first film rolling support rod and the second film rolling support rod are supported outwardly. After winding the ground film, they are rotated under the action of a self-contained or external power device to perform the film rolling operation; when the control rod is pulled toward the first support seat, the middle sliding support block and the rear sliding support block are driven to move toward the first support seat, which will cause the first film rolling support rod and the second film rolling support rod to shrink inward and separate from the rolled ground film.

[0010] Preferably, support roller support arms are provided on the frame on both sides of the support roller, and the support roller support arms are rotatably connected to the support roller via a first rotating shaft.

[0011] Preferably, a running wheel is provided at the bottom of the frame, and the running wheel drives the frame to move under the action of an external power device;

[0012] A connecting frame for connecting with a traction device of an external power device is provided in front of the frame.

[0013] Preferably, a transmission device is provided between the traveling wheel and the first film rolling shaft, for transmitting power to the first film rolling shaft when the traveling wheel is traveling, thereby driving the first film rolling shaft to rotate synchronously.

[0014] Preferably, the transmission device is a belt transmission device, which includes a driving pulley located on the side of the walking wheel and a driven pulley located on the side of the first film winding shaft, and a belt connecting the driving pulley and the driven pulley.

[0015] Preferably, the limiting device includes a control handle and a locking device provided at one end of the control rod.

[0016] Preferably, the control handle is L-shaped, including a horizontal rod and a vertical rod; the horizontal rod passes through the head support plate, and its two ends are respectively located on the inner and outer sides of the head support plate, and the vertical rod is located at the outer end of the horizontal rod for hand-holding;

[0017] The control rods include two, which are symmetrically arranged on the left and right sides of the middle sliding support block and the tail sliding support block; the two control rods are connected to the horizontal rod through a connecting block at a position close to the head support plate;

[0018] The locking device includes a fixing plate and a first limiting screw arranged on the outside of the head support plate. The fixing plate is provided with a transverse through hole for the horizontal rod to pass through, and a vertical first threaded hole for the first limiting screw to pass through. The first limiting screw passes through the vertical first threaded hole to tighten the horizontal rod and lock the control handle.

[0019] Preferably, the detachable connection between the first film winding shaft and the second film winding shaft is a concave-convex fitting connection;

[0020] The concave-convex fitting connection mechanism comprises a cross-shaped protrusion located on the head end surface of the second film winding shaft, and a cross-shaped groove located on the tail end surface of the first film winding shaft and adapted to the cross-shaped protrusion.

[0021] Preferably, the second support seat comprises a support column and a limit block located above the support column;

[0022] A first axial semicircular through hole is provided on the top surface of the support column, and a second semicircular through hole corresponding to the first semicircular through hole is provided on the bottom surface of the limit block, and the first semicircular through hole and the second semicircular through hole cooperate to form an axial through hole for the second film winding shaft to pass through;

[0023] The limit block is also provided with a second vertical threaded hole, and a second limit screw passes through the second threaded hole to tighten or passes through the top surface of the support column to tightly connect the limit block and the support column.

[0024] Preferably, the first film winding shaft and the second film winding shaft are octagonal steel;

[0025] The first film roll support rod and the second film roll support rod are hollow steel bars.

[0026] The overall mulch film recovery device provided in the present application realizes the efficient and accurate recovery of mulch films. While recovering the mulch films as a whole, the rolled mulch films can also be quickly removed, greatly improving the operation efficiency. Furthermore, the mulch film residues are prevented from polluting the soil and the surrounding environment, thereby playing an important role in protecting the farmland environment and building beautiful villages, and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the overall ground film recovery device provided by the present invention;

[0028] Figure 2 It is a structural schematic diagram of the umbrella-shaped film rolling device provided by the present invention;

[0029] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A;

[0030] Figure 4 This is a schematic diagram of the structure of the umbrella-shaped film roll device from another perspective;

[0031] Figure 5 yes Figure 4 Schematic diagram of the structure of part B;

[0032] Figure 6 It is a structural schematic diagram of an umbrella-shaped film rolling device with the support base omitted;

[0033] Figure 7 yes Figure 6 A magnified schematic diagram of the structure of the middle C section;

[0034] Figure 8 It is a schematic diagram of the structure of the cross-shaped protrusion;

[0035] Fig. 9 It is a schematic diagram of the structure of the cross-shaped groove;

[0036] Fig.10 It is a schematic diagram of the structure of the cooperation between the cross-shaped protrusion and the cross-star groove.

[0037] Among them, 1-frame; 21-walking wheel; 22-connecting frame; 23-driving pulley; 24-driven pulley; 31-support roller; 32-support roller support arm; 33-first rotating shaft; 4-umbrella film rolling device; 41-first support seat; 42-first film rolling shaft; 43-middle sliding support block; 44-umbrella support frame; 45-first film rolling support rod; 46-head support plate; 47-cross groove; 48-second rotating shaft; 49-third rotating shaft; 51-second support seat; 5 11-support column; 512-limiting block; 513-first semicircular through hole; 514-second semicircular through hole; 515-second limiting screw; 52-second film rolling shaft; 53-tail sliding support block; 54-radial support rod; 55-second film rolling support rod; 56-hinged frame; 57-fourth rotating axis; 58-cross-shaped protrusion; 61-control rod; 62-connecting block; 63-control handle; 631-horizontal rod; 632-vertical rod; 64-fixing plate; 65-first limiting screw. DETAILED DESCRIPTION

[0038] The present invention provides a ground film integral recovery device, such as Figure 1 As shown, it includes a frame 1, which can drive the whole machine to move under the action of its own or external power device. Preferably, a walking wheel 21 is provided at the bottom of the frame to drive the frame to move. The frame is provided with a supporting device and an umbrella-shaped film rolling device 4 arranged in a line.

[0039] The supporting device includes a rotatable supporting roller 31. When rolling up the film, a part of the film covering the crops is first lifted and wound around the supporting roller 31, and then the film is wound around the umbrella-shaped film rolling device for rolling. The supporting roller 31 can not only support the film during the film rolling operation, but also use the friction between the supporting roller and the film to remove the soil contaminated on the surface of the film, which is beneficial to the subsequent film rolling operation.

[0040] Umbrella film roll device Figures 2 to 7 As shown, it comprises a first support seat 41 and a second support seat 51 which are arranged opposite to each other, the first support seat is rotatably connected to the first film roll shaft 42, the second support seat 51 is rotatably and detachably connected to the second film roll shaft 52, and the tail of the first film roll shaft 42 and the head of the second film roll shaft 52 are detachably connected. Under the action of a self-contained or external power device, the first film roll shaft and the second film roll shaft can be driven to rotate synchronously.

[0041] The first film roll shaft 42 is provided with a head support plate 46, and the second film roll shaft 52 is provided with a tail sliding support block 53 which can slide along the second film roll shaft, and the tail sliding support block 53 is hinged with a plurality of radial support rods 54 along its circumference; a plurality of first film roll support rods 45 are evenly distributed on the outer circumference of the first film roll shaft 42, and a plurality of second film roll support rods 55 are evenly distributed on the outer circumference of the second film roll shaft 52, and the number and position of the first film roll support rods, the second film roll support rods and the radial support rods correspond to each other.

[0042] The head end of the first film roll support rod 45 is hinged to the head support plate 46, the tail end of the second film roll support rod 55 is hinged to the corresponding radial support rod 54, and the other ends of the two are hinged. The first film roll shaft is provided with an intermediate sliding support block 43 that can slide along the first film roll shaft, and an umbrella-shaped support frame 44 is hinged between the intermediate sliding support block 43 and the plurality of first film roll support rods 45; the intermediate sliding support block 43 and the tail sliding support block 53 are commonly connected to a control rod 61 with a limit device.

[0043] The first film roll shaft and the second film roll shaft located in the center mentioned above can be combined to form a complete film roll shaft, and the first film roll support rod and the second film roll support rod distributed on the periphery can be combined to form a complete film roll cylinder, the middle sliding support block and the umbrella-shaped support frame connect the first film roll shaft and the first film roll support rod, the tail sliding support block and the radial support rod connect the second film roll shaft and the second film roll support rod, and the control rod connects the middle sliding support block and the tail sliding support block. Therefore, by pulling the control rod, the middle sliding support block and the tail sliding support block can be synchronously driven to move, thereby driving the umbrella-shaped support frame, the radial support rods and the first film roll support rod and the second film roll support rod to move.

[0044] Specifically, when the direction of the second support seat is Figure 2 When the control rod is pulled in the left direction as shown, the middle sliding support block and the rear sliding support block are driven to move to the left, and the umbrella-shaped support frame and the radial support rods hinged with the adjacent parts are gradually stretched, and the first film rolling support rod and the second film rolling support rod are supported outwardly. At this time, the control rod is fixed and locked by the limit device, and the hinged first film rolling support rod and the second film rolling support rod also remain in a locked state to form a film rolling cylinder. At this time, the ground film pre-wound on the support roller is wound on the film rolling cylinder composed of the first film rolling support rod and the second film rolling support rod, and the first film rolling shaft and the second film rolling shaft are rotated under the action of the self-contained or external power device, thereby synchronously driving the first film rolling support rod and the second film rolling support rod to rotate, so that the ground film begins to roll up, and the film rolling operation is realized.

[0045] After the film is rolled up, release the limit device and pull the control rod to the right, which will drive the middle sliding support block and the tail sliding support block to move to the right. The umbrella-shaped support frame and radial support rods hinged to the adjacent parts will gradually shrink, and the first film rolling support rod and the second film rolling support rod will lose their support and collapse inward like an umbrella. At this time, the first film rolling shaft and the second film rolling shaft will be disassembled, and the rolled ground film can be easily removed when it loses its support. Finally, the next operation can be carried out by reversing the previous operation.

[0046] Before and after the film rolling operation, the film rolling operation can be carried out and the rolled ground film can be removed from the film rolling support rod by simply opening and retracting the film rolling support rod like opening and retracting an umbrella, which is convenient and quick. After the film rolling support rod is retracted, the present application also provides a detachably connected second film rolling shaft, a first film rolling shaft, and a detachably connected second film rolling shaft and a second support seat, so that the second film rolling shaft can also be removed. Without the support of the film rolling support rod and the second film rolling shaft, the rolled ground film is easier to remove.

[0047] Therefore, the overall mulch film recovery device provided in the present application can not only recover the mulch film as a whole, but also quickly remove the rolled mulch film, thereby greatly improving the operating efficiency. Moreover, the device has a reasonable structure and low production cost, and is suitable for large-scale promotion and use.

[0048] The recovery device provided in the present application can be provided with a self-contained driving device such as a motor to drive the walking wheels to move, or a connecting device connected to an external power device can be provided to move under the traction of the external power device. Preferably, the connecting device is Figure 1 As shown, a triangular connecting frame 22 is provided in front of the frame, through which the triangular connecting frame is connected to an external power device such as a traction device of a tractor, and the traction walking wheels drive the entire frame 1 to move.

[0049] Preferably, a support roller support arm 32 is provided on the frame 1 , and the support roller support arm 32 is rotatably connected to the support roller 31 via a first rotating shaft 33 .

[0050] The first film rolling shaft can be directly connected to a driving device such as a motor, which drives the first film rolling shaft and the second film rolling shaft to rotate. When the supporting roller and the first film rolling support rod and the second film rolling support rod are all wrapped around the ground film, the first film rolling support rod and the second film rolling support rod are synchronously driven to rotate to perform the film rolling operation. The supporting roller also rotates under the action of the ground film, and transmits the ground film to the first film rolling support rod and the second film rolling support rod.

[0051] Preferably, a transmission device is provided between the traveling wheel 21 and the first film rolling shaft 42, so that when the traveling wheel is moving, power can be directly transmitted to the first film rolling shaft, directly driving the first film rolling shaft to rotate, which can simplify the device structure, save electricity resources and save costs.

[0052] Preferably, the transmission device is a belt transmission device, which includes a driving pulley 23 located on the side of the walking wheel 21 and a driven pulley 24 located on the side of the first film rolling shaft 42, and a belt connecting the driving pulley and the driven pulley. During the film rolling operation, the tractor provides forward traction to drive the walking wheel to rotate, and the driving pulley installed on one side of the walking wheel transmits power to the driven pulley located on the same side of the first film rolling shaft through the belt, and the driven pulley drives the first film rolling shaft and the second film rolling shaft to rotate.

[0053] Further preferably, a torque limiter is provided on the driven pulley 24, which can avoid the problem of the ground film being torn due to the increase in the film thickness causing the speed of the first film roll axis and the second film roll axis to increase.

[0054] Preferably, Figures 2 to 7 As shown, the hinge mechanism between the first film roll support rod 45 and the second film roll support rod 55, the hinge mechanism between the umbrella-shaped support frame 44 and the first film roll support rod 45, and the hinge mechanism between the radial support rod 54 and the second film roll support rod 55 all adopt a hinge frame 56.

[0055] The hinge mechanism between the middle sliding support block 43 and the umbrella-shaped support frame 44, the hinge mechanism between the head support plate 46 and the first film roll support rod 45, and the hinge mechanism between the tail sliding support block 53 and the radial support rod 54 all use rotating shafts, specifically, the second rotating shaft 48, the third rotating shaft 49 and the fourth rotating shaft 57.

[0056] Preferably, Figures 4-5 As shown, the limiting device includes a control handle 63 and a locking device arranged at one end of the control rod 61.

[0057] Further preferably, the control handle 63 is L-shaped, including a horizontal rod 631 and a vertical rod 632. The horizontal rod 631 passes through the head support plate 46, and its two ends are respectively located on the inner and outer sides of the head support plate, and the vertical rod is located at the outer end of the horizontal rod, which can be convenient for handheld control.

[0058] The control rods 61 include two, which are symmetrically arranged on the left and right sides of the middle sliding support block 43 and the tail sliding support block 53, and can better drive the middle sliding support block 43 and the tail sliding support block 53 to slide; the two control rods 61 are connected to the horizontal rod 631 through the connecting block 62 at a position close to the head support plate 46, that is, the two control rods can be driven at one time through the control handle.

[0059] The locking device includes a fixing plate 64 and a first limiting screw 65 arranged on the outside of the head support plate 46. The fixing plate is provided with a transverse through hole for the horizontal rod 631 to pass through, and a vertical first threaded hole for the first limiting screw 65 to pass through. The first limiting screw 65 is passed through the vertical first threaded hole to tighten the horizontal rod, so that the control handle can be locked, so that the film rolling operation can be carried out. When the film rolling is completed, the first limiting screw is loosened to move the control handle.

[0060] Preferably, Figures 8 to 10 As shown, the detachable connection mode of the first film roll shaft 42 and the second film roll shaft 52 is a concave-convex fitting connection; further preferably, the concave-convex fitting connection mechanism includes a cross-shaped protrusion 58 located on the head end face of the second film roll shaft 52, and a cross-shaped groove 47 located on the tail end face of the first film roll shaft 42 adapted to the cross-shaped protrusion, and the cross-shaped protrusion and the cross-shaped groove can be quickly matched and disassembled, and at the same time, they are relatively stable and reliable after matching, and are not easy to fall off. Of course, the positions of the cross-shaped protrusion and the cross-shaped groove can also be interchanged, and the cross-shaped protrusion is set on the first film roll shaft, and the cross-shaped groove is set on the second film roll shaft, which can achieve the same technical effect.

[0061] Preferably, Figure 2 As shown, a detachable mechanism is used between the second support seat and the second film rolling shaft. After the film rolling is completed, the second film rolling shaft can be disassembled from the first film rolling shaft to facilitate the removal of the rolled ground film.

[0062] Further preferably, the second support seat includes a support column 511 and a limit block 512 located above the support column 511; an axial first semicircular through hole 513 is provided on the top surface of the support column 511, and a second semicircular through hole 514 corresponding to the first semicircular through hole 513 is provided on the bottom surface of the limit block 512; the first semicircular through hole 513 and the second semicircular through hole 514 cooperate to form an axial through hole for the second film winding shaft to pass through.

[0063] A second vertical threaded hole is also provided on the limit block 512, and the second limit screw 515 can pass through the second threaded hole to tighten, or pass through the top surface of the support column (a threaded hole for the second limit screw to pass through may also be provided on the top surface of the support column) to tightly connect the limit block 512 and the support column 511.

[0064] Before the film rolling operation, first place the second film rolling shaft in the first semicircular through hole, then put in the limit block, and use the second limit screw to connect the limit block to the support column to prevent the second film rolling shaft from moving upward during the film rolling operation. After the film rolling operation is completed, loosen the second limit screw, remove the limit block, and then lift the second film rolling shaft upward, remove the second film rolling shaft from the first film rolling shaft, and easily take out the rolled ground film.

[0065] Preferably, the first film rolling shaft and the second film rolling shaft are octagonal steel; the first film rolling support rod and the second film rolling support rod are hollow steel bars, which can reduce weight and facilitate rotation.

[0066] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A ground film integral recovery device, comprising a frame, wherein the frame drives the entire machine to move under the action of a self-contained or external power device, characterized in that: The frame is provided with a supporting device arranged in a line and an umbrella-shaped film rolling device; The supporting device comprises a rotatable supporting roller for supporting the ground film when the film is rolled up; The umbrella-shaped film rolling device includes a first support seat and a second support seat which are relatively arranged, and the first support seat is rotatably connected to the first film rolling shaft, and the second support seat is rotatably and detachably connected to the second film rolling shaft, and the tail of the first film rolling shaft and the head of the second film rolling shaft are detachably connected; the first film rolling shaft is provided with a head support plate and an intermediate sliding support block that can slide along the first film rolling shaft, and the second film rolling shaft is provided with a tail sliding support block that can slide along the second film rolling shaft, and the tail sliding support block is hinged along its circumference, and a plurality of radial support rods are hingedly connected to the tail sliding support block along its circumference; a plurality of first film rolling support rods and second film rolling support rods are uniformly distributed circumferentially outside the first film rolling shaft and the second film rolling shaft respectively; the head end of the first film rolling support rod is hinged to the head support plate, the tail end of the second film rolling support rod is hinged to the corresponding radial support rod, and the other ends of the first film rolling support rod and the second film rolling support rod are hinged; an umbrella-shaped support frame is hinged between the intermediate sliding support block and the first film rolling support rod; The middle sliding support block and the rear sliding support block are jointly connected with a control rod with a limiting device; when the control rod is pulled toward the second support seat, the middle sliding support block and the rear sliding support block are driven to move toward the second support seat, and the first film rolling support rod and the second film rolling support rod are supported outwardly. After winding the ground film, they are rotated under the action of a self-contained or external power device to perform the film rolling operation; when the control rod is pulled toward the first support seat, the middle sliding support block and the rear sliding support block are driven to move toward the first support seat, which will cause the first film rolling support rod and the second film rolling support rod to shrink inward and separate from the rolled ground film.

2. The device for recovering the entire ground film according to claim 1, characterized in that: The frame is provided with support roller support arms on both sides of the support roller, and the support roller support arms are rotatably connected to the support roller via a first rotating shaft.

3. The whole ground film recovery device according to claim 1, characterized in that: A plurality of running wheels are arranged at the bottom of the frame, and the running wheels drive the frame to move under the action of an external power device; A connecting frame for connecting with a traction device of an external power device is provided in front of the frame.

4. The whole ground film recovery device according to claim 3, characterized in that: A transmission device is provided between the traveling wheel and the first film rolling shaft, for transmitting power to the first film rolling shaft when the traveling wheel is traveling, thereby driving the first film rolling shaft to rotate synchronously.

5. The whole ground film recovery device according to claim 4, characterized in that: The transmission device is a belt transmission device, which includes a driving pulley located on the side of the walking wheel and a driven pulley located on the side of the first film winding shaft, and a belt connecting the driving pulley and the driven pulley.

6. The ground film integral recovery device according to claim 1, characterized in that: The limiting device comprises a control handle and a locking device arranged at one end of the control rod.

7. The whole ground film recovery device according to claim 6, characterized in that: The control handle is L-shaped and includes a horizontal rod and a vertical rod; the horizontal rod passes through the head support plate, and its two ends are respectively located on the inner and outer sides of the head support plate, and the vertical rod is located at the outer end of the horizontal rod for hand-holding; The control rods include two, which are symmetrically arranged on the left and right sides of the middle sliding support block and the tail sliding support block; the two control rods are connected to the horizontal rod through a connecting block at a position close to the head support plate; The locking device includes a fixing plate and a first limiting screw arranged on the outside of the head support plate. The fixing plate is provided with a transverse through hole for the horizontal rod to pass through, and a vertical first threaded hole for the first limiting screw to pass through. The first limiting screw passes through the vertical first threaded hole to tighten the horizontal rod and lock the control handle.

8. The device for recovering the entire ground film according to claim 1, characterized in that: The detachable connection between the first film winding shaft and the second film winding shaft is a concave-convex fitting connection; The concave-convex fitting connection mechanism comprises a cross-shaped protrusion located on the head end surface of the second film winding shaft, and a cross-shaped groove located on the tail end surface of the first film winding shaft and adapted to the cross-shaped protrusion.

9. The device for recovering ground film as a whole according to claim 1, characterized in that: The second support seat includes a support column and a limit block located above the support column; A first axial semicircular through hole is provided on the top surface of the support column, and a second semicircular through hole corresponding to the first semicircular through hole is provided on the bottom surface of the limit block, and the first semicircular through hole and the second semicircular through hole cooperate to form an axial through hole for the second film winding shaft to pass through; The limit block is also provided with a second vertical threaded hole, and a second limit screw passes through the second threaded hole to tighten or passes through the top surface of the support column to tightly connect the limit block and the support column.

10. The whole ground film recovery device according to claim 1, characterized in that: The first film rolling shaft and the second film rolling shaft are made of octagonal steel; The first film roll support rod and the second film roll support rod are hollow steel bars.

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