Green net laying device for construction site

Abstract

The utility model relates to the field of constructional engineering, and discloses a construction site green net laying device which comprises a machine frame, a first transmission shaft is movably installed on the top of the machine frame, a green net winding roller is fixedly installed on the outer diameter of the first transmission shaft, a laying mechanism is arranged on one side of the lower portion of the machine frame, and a compacting mechanism is arranged at the bottom of the machine frame. A tensioning mechanism is arranged on one side of the upper portion of the rack, a pressing roller is movably installed on the side, close to the compacting mechanism, of the bottom of the rack, the laying mechanism comprises a second transmission shaft and a rotating shaft, and the second transmission shaft is movably installed on one side of the lower portion of the rack. According to the green net laying device, the problems of loosening, wrinkling and the like in the green net laying process are solved through the tensioning mechanism, the stability of the green net in the conveying process can be improved through the laying mechanism, the green net can be compacted through the compacting mechanism after being laid, the green net is made to be tightly attached to the ground, the stability and the windproof and dust suppression effect of the green net are improved, and the laying quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a green net laying device for construction sites. Background Technique

[0002] With the increasing awareness of environmental protection, the green net coverage on the ground of construction sites has become an important environmental protection measure. The green net coverage can not only prevent dust pollution, but also reduce soil erosion and protect the ecological environment. However, most of the traditional green net coverage methods rely on manual operation, with low efficiency, high labor intensity and poor laying quality. To solve this problem, we propose a machine for a green net laying device for construction sites, aiming to quickly, efficiently and with high quality complete the green net paving on the construction site ground. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a green net laying device for construction sites, which solves the problems that most of the traditional green net coverage methods rely on manual operation, with low efficiency, high labor intensity and poor laying quality.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A green net laying device for construction sites, including a frame, a first transmission shaft is movably installed on the top of the frame, a green net roll is fixedly installed on the outer diameter of the first transmission shaft, a laying mechanism is arranged on one side of the lower part of the frame, a compaction mechanism is arranged at the bottom of the frame, a tensioning mechanism is arranged on one side of the upper part of the frame, and a pressure roller is movably installed on one side of the bottom of the frame close to the compaction mechanism.

[0005] Preferably, the laying mechanism includes a second transmission shaft and a rotating shaft, the second transmission shaft is movably installed on one side of the lower part of the frame, the rotating shaft is movably arranged above the second transmission shaft, and a laying roller is fixedly installed on the outer diameter of the rotating shaft.

[0006] Preferably, the compaction mechanism includes a third transmission shaft and two activity rooms, the third transmission shaft is movably installed in the middle of the frame, and the activity rooms are fixedly connected to the bottom of the frame.

[0007] Preferably, a three-phase asynchronous motor is fixedly installed on one side of the top of the frame, and the driving end of the three-phase asynchronous motor is connected to the outer diameter of one side of the first transmission shaft through a reduction device. Transmission gears are fixedly connected to the outer diameter of one side of the first transmission shaft, the second transmission shaft and the third transmission shaft, and the outer diameters of the transmission gears are connected by a gear belt.

[0008] Preferably, a plurality of tension rollers are movably installed on the outer diameter of the second transmission shaft through supports. A plurality of pointed protrusions are uniformly and fixedly connected to the surface of the laying roller. Synchronous wheels are fixedly installed on the outer diameters of one sides of the second transmission shaft and the rotating shaft, and the outer diameters of the synchronous wheels are connected by a synchronous belt.

[0009] Preferably, a worm is fixedly installed on the outer diameter of the middle part of the third transmission shaft. A connecting seat is fixedly welded to the middle part of the inner side end of the activity room. A rotating rod is movably installed in the middle of the top end of the connecting seat. A worm gear is fixedly installed at the top end of the rotating rod, and the inner sides of the worm gear and the worm are meshed and connected.

[0010] Preferably, pressing blocks are movably installed on the upper sides inside the activity room. The bottom ends of the pressing blocks are connected to supports through first springs, and pressing wheels are movably installed at the bottom ends of the supports.

[0011] Preferably, a cylinder block is fixedly installed on the outer diameter of the middle part of the rotating rod. A ball groove is obliquely arranged on the outer diameter of the cylinder block, and an obliquely installed bearing seat is movably installed in the ball groove. Swing rods are fixedly connected to both ends of the obliquely installed bearing seat, and the ends of the swing rods are respectively movably installed on the tops of the corresponding pressing blocks.

[0012] Preferably, the tensioning mechanism includes two fixed frames. The outer ends of the fixed frames are movably connected to the machine frame through two guide rods. Movable blocks are movably installed on the upper sides inside the guide rods. A plurality of pressing wheels are movably installed at the bottom ends of the movable blocks and the bottom walls of the fixed frames. Both sides of the top ends of the movable blocks are connected to the top walls of the fixed frames through second springs. The middle parts of the top ends of the movable blocks extend above the fixed frames through straight rods and are fixedly connected to lifting pull rods. Threaded rods are connected to the middle parts of the fixed frames, and hand wheels are fixedly connected to the outer ends of the threaded rods.

[0013] Preferably, a traveling driving mechanism is provided at the bottom end of the machine frame, and a pull rod is fixedly connected to one side of the machine frame.

[0014] Working principle: First, the staff installs the green net roll on the first transmission shaft, pulls out the end part of the green net, passes it through the outer diameters of the laying roller, the second transmission shaft and the pressing roller in sequence and stays under the compaction mechanism. Subsequently, the tension of the edge of the green net roll is adjusted by the tensioning mechanism to ensure that the green net is always in a stretched and straight state. The specific operation is as follows: Pull up the lifting rod to drive the movable block to move upward, then clip the edge of the green net between the two pressing wheels. After loosening the lifting rod, use the action of the second spring to press down the movable block and the upper pressing wheel, achieving the effect of fixing the edge of the green net without affecting the normal unwinding of the green net. Subsequently, rotate the handwheel to drive the rotation of the threaded rod. Utilizing the limiting effect of the guide rod on the fixed frame, drive the pressed edge of the green net to move outward, thereby straightening the green net and improving the later laying quality. Subsequently, start the walking drive mechanism to drive the frame to move. At the same time, start the three-phase asynchronous motor. The main shaft of the three-phase asynchronous motor drives the first transmission shaft to rotate after decelerating through the reduction device, thereby driving the green net roll to rotate and start to unwind the green net. While the first transmission shaft is rotating, it will also drive the transmission gear on the shaft to rotate. Utilizing the transmission effect of the gear belt, drive the second transmission shaft and the third transmission shaft to rotate simultaneously. When the second transmission shaft is rotating, it will drive the synchronous wheel on the shaft to rotate. Utilizing the transmission effect of the synchronous belt, drive the rotating rod to rotate, thereby driving the laying roller on the rotating rod to rotate and start the laying work of the green net. The pointed protrusions on the laying roller will pass through the through holes on the surface of the green net, which can improve the stability of the green net during transmission and prevent the green net from wrinkling during transportation. When the second transmission shaft is rotating, it will also drive a plurality of tensioning rollers on the outer diameter to perform circular motion. When the tensioning rollers are moving, they will intermittently push the green net inward. This can not only make the green net fit the laying roller more closely during transmission, but also continuously vibrate the green net to further prevent the green net from wrinkling during transportation. The laid green net will first be preliminarily rolled by the pressing roller and then come under the compaction mechanism. Since the third transmission shaft will rotate together with the first transmission shaft through the action of the transmission gear and the gear belt, the rotating third transmission shaft drives the middle worm to rotate and meshes with the worm wheel to drive the rotating rod and the middle cylinder to rotate. Since there is a certain angle between the inclined bearing seat and the central axis of the cylinder, when the cylinder rotates, it will drive the inclined bearing seat to swing up and down, and cooperate with the upper swing rod to drive the two pressing blocks to alternately move up and down in the activity chamber, thereby driving the pressing wheels at the bottoms of the two brackets to alternately move up and down to compact the laid green net, making it closely fit the ground, improving the stability of the green net and the wind prevention and dust suppression effect. The first spring can make the pressing wheel have a certain buffer when it touches the ground, avoid lifting the frame, and improve the compaction effect.

[0015] The utility model provides a device for laying green nets at construction sites. It has the following beneficial effects:

[0016] 1. The utility model can adjust the tension of the green net through the tensioning mechanism, so that the green net is always in a stretched and straightened state, avoiding problems such as slack and wrinkles during the laying process of the green net, improving the laying flatness and aesthetics. The pointed protrusions on the laying roller can pass through the through holes on the surface of the green net, improving the stability of the green net during transmission and preventing the green net from wrinkling during transportation. The compaction mechanism can compact the laid green net, making it closely fit with the ground, improving the stability of the green net and the wind prevention and dust suppression effect, and ensuring the laying quality.

[0017] 2. The utility model realizes the automatic operation of green net laying. The staff only needs to carry out simple preparatory work, and after starting the device, a series of processes such as laying, tensioning and compaction of the green net can be automatically completed, greatly saving manpower and time, improving the laying efficiency. At the same time, the design of components such as the lifting rod, movable block, pressing wheel, and second spring in the tensioning mechanism enables the mechanism to adapt to green nets of different widths, improving the versatility of the device and conveniently adjusting the tension degree of the green net to meet different construction requirements. Brief Description of the Drawings

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 is a schematic diagram of the structure of the compaction mechanism in the utility model;

[0021] Figure 4 is a side view cross-sectional view of the activity room in the utility model;

[0022] Figure 5 is a schematic diagram of the structure of the tensioning structure in the utility model;

[0023] Figure 6 is a side view perspective schematic diagram of the utility model.

[0024] Among them, 1. Frame; 2. First transmission shaft; 3. Green net roller; 4. Three-phase asynchronous motor; 5. Laying mechanism; 501. Second transmission shaft; 502. Tensioning roller; 503. Rotating shaft; 504. Laying roller; 505. Pointed protrusion; 506. Synchronous pulley; 507. Synchronous belt; 6. Compacting mechanism; 601. Third transmission shaft; 602. Worm; 603. Activity room; 604. Pressing block; 605. First spring; 606. Bracket; 607. Pressing wheel; 608. Connecting seat; 609. Rotating rod; 610. Worm gear; 611. Cylinder block; 612. Obliquely installed bearing seat; 613. Swing rod; 7. Tensioning mechanism; 701. Fixed frame; 702. Guide rod; 703. Movable block; 704. Pressing wheel; 705. Second spring; 706. Pull rod; 707. Threaded rod; 708. Handwheel; 8. Pressing roller; 9. Travel driving mechanism; 10. Pull rod; 11. Transmission gear; 12. Gear belt. Specific implementation manner

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] Please refer to the attached Figure 1 - attached Figure 6 , the embodiment of the present invention provides a green net laying device for construction sites. As Figure 1 shown, it includes a frame 1. The frame 1 is made of a solid metal material as a whole, having good stability and load-bearing capacity. A first transmission shaft 2 is movably installed on its top. The first transmission shaft 2 is made of high-strength alloy steel and its surface has been finely processed to ensure smooth rotation. A green net roller 3 is fixedly installed on the outer diameter of the first transmission shaft 2. The green net roller 3 can conveniently wind and release the green net. A laying mechanism 5 is provided on one side of the lower part of the frame 1. The laying mechanism 5 can efficiently lay the green net on the ground. A compacting mechanism 6 is provided at the bottom of the frame 1. The compacting mechanism 6 can tightly compact the laid green net on the ground to improve the stability of the green net. A tensioning mechanism 7 is provided on one side of the upper part of the frame 1. The tensioning mechanism 7 can adjust the tension of the green net to ensure that the green net is always in a stretched and straight state. A pressing roller 8 is movably installed on one side of the bottom of the frame 1 close to the compacting mechanism 6. The pressing roller 8 can preliminarily roll the green net before laying.

[0028] In this embodiment, a three-phase asynchronous motor 4 is fixedly installed on one side of the top of the frame 1. The three-phase asynchronous motor 4 has a powerful power output and can stably drive the operation of the entire device. The driving end of the three-phase asynchronous motor 4 is connected to the outer diameter of one side of the first transmission shaft 2 through a speed reduction device. The speed reduction device can convert the high speed of the motor into a low speed suitable for the first transmission shaft 2 to ensure that the green net roll 3 can smoothly release the green net. Transmission gears 11 are fixedly connected to the outer diameter of one side of the first transmission shaft 2, the second transmission shaft 501, and the third transmission shaft 601. The transmission gears 11 are made of high-quality steel, have a high-precision tooth profile, and good wear resistance. The outer diameters of the transmission gears 11 are connected by a gear belt 12. The gear belt 12 has high strength and good transmission performance and can ensure the synchronous rotation of the three transmission shafts.

[0029] Further, the laying mechanism 5 includes a second transmission shaft 501 and a rotating rod 503. The second transmission shaft 501 is also made of high-strength alloy steel and is movably installed on one side of the lower part of the frame 1 and can rotate stably. The rotating rod 503 is movably arranged above the second transmission shaft 501. The rotating rod 503 is also made of high-quality metal material, has good rigidity and rotation performance. A laying roller 504 is fixedly installed on the outer diameter of the rotating rod 503. The surface of the laying roller 504 is smooth and can effectively lay the green net on the ground.

[0030] Further, a number of tensioning rollers 502 are movably installed on the outer diameter of the second transmission shaft 501 through supports. The tensioning rollers 502 are made of wear-resistant rubber material and can tension the green net without damaging it. A number of pointed protrusions 505 are uniformly fixedly connected to the surface of the laying roller 504. The pointed protrusions 505 can increase the friction between the green net and the laying roller 504, improve the stability of the green net during transmission, and prevent the green net from wrinkling during transportation. Synchronous wheels 506 are fixedly installed on the outer diameter of one side of the second transmission shaft 501 and the rotating rod 503. The synchronous wheels 506 have a high-precision tooth profile and can ensure the stable transmission of the synchronous belt 507. The outer diameters of the synchronous wheels 506 are connected by a synchronous belt 507. The synchronous belt 507 has good synchronous performance and can make the second transmission shaft 501 and the rotating rod 503 rotate synchronously.

[0031] Specifically, start the three-phase asynchronous motor 4. The main shaft of the three-phase asynchronous motor 4 drives the first transmission shaft 2 to rotate after deceleration through a reduction device, thereby driving the green net roller 3 to rotate and starting to lower the green net. While the first transmission shaft 2 is rotating, it also drives the transmission gear 11 on the shaft to rotate. By using the transmission effect of the gear belt 12, it drives the second transmission shaft 501 and the third transmission shaft 601 to rotate simultaneously. When the second transmission shaft 501 is rotating, it drives the synchronous pulley 506 on the shaft to rotate. By using the transmission effect of the synchronous belt 507, it drives the rotating rod 503 to rotate, thereby driving the laying roller 504 on the rotating rod 503 to rotate and starting the laying work of the green net. The pointed protrusions 505 on the laying roller 504 can pass through the through holes on the surface of the green net, which can improve the stability of the green net during transmission and prevent the green net from wrinkling during transportation. When the second transmission shaft 501 is rotating, it also drives a plurality of tension rollers 502 on the outer diameter to perform circular motion. When the tension rollers 502 are moving, they will intermittently push the green net inward. This can not only make the green net fit the laying roller 504 more closely during transmission, but also continuously vibrate the green net to further prevent the green net from wrinkling during transportation.

[0032] Furthermore, the compaction mechanism 6 includes a third transmission shaft 601 and two activity rooms 603. The third transmission shaft 601 is made of a strong metal material and is movably installed in the inner middle part of the frame 1, capable of rotating stably. The activity rooms 603 are both fixedly connected to the bottom of the frame 1. The activity rooms 603 are welded with high-strength metal plates and have good stability and sealing performance.

[0033] Furthermore, a worm 602 is fixedly installed on the outer diameter of the middle part of the third transmission shaft 601. The worm 602 is made of high-quality alloy steel and has a high-precision helical tooth profile and good wear resistance. A connecting seat 608 is fixedly welded in the middle of the inner side end of the activity room 603. The connecting seat 608 is made of a strong metal material and can bear a large force. A rotating rod 609 is movably installed in the middle of the top end of the connecting seat 608. The rotating rod 609 is also made of high-quality metal material and has good rotational performance. A worm gear 610 is fixedly installed at the top end of the rotating rod 609, and the worm gear 610 meshes with the inner side end of the worm 602. The cooperation of the worm gear 610 and the worm 602 can achieve speed reduction and change of the transmission direction.

[0034] Further, pressing blocks 604 are movably installed on the upper side inside the activity room 603. The pressing blocks 604 are made of high-strength metal materials and have good compressive performance. The bottom ends of the pressing blocks 604 are respectively connected to brackets 606 through first springs 605. The first springs 605 have good elasticity, which can enable the pressing wheels 607 to have a certain buffer when contacting the ground, avoiding lifting the frame 1 and improving the compaction effect at the same time. The bottom ends of the brackets 606 are movably installed with pressing wheels 607. The pressing wheels 607 are made of wear-resistant rubber materials and can effectively press the green net onto the ground.

[0035] Further, a cylinder block 611 is fixedly installed on the outer diameter of the middle part of the rotating rod 609. The cylinder block 611 is made of high-strength metal materials and has good sealing performance and stability. A ball groove is inclinedly arranged on the outer diameter of the cylinder block 611, and an inclined bearing seat 612 is movably installed in the ball groove. The inclined bearing seat 612 can swing up and down when the cylinder block 611 rotates. Both ends of the inclined bearing seat 612 are fixedly connected with swing rods 613, and the ends of the swing rods 613 are respectively movably installed on the tops of the corresponding pressing blocks 604. The swing rods 613 can transmit the swing of the inclined bearing seat 612 to the pressing blocks 604, thereby driving the pressing wheels 607 to move up and down alternately.

[0036] Specifically, the laid green net will first be preliminarily rolled by the pressing roller 8 and then come under the compaction mechanism 6. Since the third transmission shaft 601 will rotate together with the first transmission shaft 2 under the action of the transmission gear 11 and the gear belt 12, the rotating third transmission shaft 601 is used to drive the middle worm 602 to rotate, which meshes with the worm gear 610 for transmission, driving the rotating rod 609 and the middle cylinder block 611 to rotate. Since there is a certain angle between the axis of the inclined bearing seat 612 and the axis of the cylinder block 611, when the cylinder block 611 rotates, it will drive the inclined bearing seat 612 to swing up and down. With the cooperation of the swing rod 613, it drives the two pressing blocks 604 to move up and down alternately in the activity room 603, thereby driving the pressing wheels 607 at the bottoms of the two brackets 606 to move up and down alternately to compact the laid green net, making it closely fit with the ground and improving the stability and wind prevention and dust suppression effect of the green net. The first spring 605 can enable the pressing wheel 607 to have a certain buffer when contacting the ground, avoiding lifting the frame 1 and improving the compaction effect at the same time.

[0037] Further, the tensioning mechanism 7 includes two fixing frames 701 made of strong metal materials with good stability. The outer ends of the fixing frames 701 are movably connected to the frame 1 through two guide rods 702 made of high-strength metal materials, which can ensure the stable movement of the fixing frames 701. On the upper side inside the guide rods 702, movable blocks 703 made of high-quality metal materials with good sliding performance are movably installed. On the bottom ends of the movable blocks 703 and the bottom walls of the fixing frames 701, a number of pressing wheels 704 made of wear-resistant rubber materials are movably installed, which can effectively fix the edge of the green net. On both sides of the top ends of the movable blocks 703, they are connected to the top walls of the fixing frames 701 through second springs 705. The second springs 705 have good elasticity, which can press down the movable blocks 703 and the upper pressing wheels 704 to achieve the effect of fixing the edge of the green net without affecting the normal unwinding of the green net. In the middle of the top ends of the movable blocks 703, they extend above the fixing frames 701 through straight rods and are fixedly connected with lifting rods 706, which facilitate the operator to operate the movable blocks 703. In the middle of the fixing frames 701, threaded rods 707 made of high-strength alloy steel with good thread accuracy and wear resistance are threadedly connected. On the outer ends of the threaded rods 707, handwheels 708 are fixedly connected, which facilitate the operator to rotate the threaded rods 707.

[0038] Specifically, by pulling up the lifting rod 706 to drive the movable block 703 to move upward, then clamping the edge of the green net between the two groups of pressing wheels 704. After releasing the lifting rod 706, under the action of the second spring 705, the movable block 703 and the upper pressing wheel 704 are pressed down to achieve the effect of fixing the edge of the green net without affecting the normal unwinding of the green net. Then, by rotating the handwheel 708 to drive the threaded rod 707 to rotate, and using the limiting effect of the guide rod 702 on the fixing frame 701, the clamped edge of the green net is driven to move outward, so as to straighten the green net and improve the later laying quality.

[0039] Further, a traveling driving mechanism 9 is provided at the bottom end of the frame 1, including rollers arranged at the four corners of the frame 1 and a driving device in the middle, which belongs to the prior art and will not be elaborated here. A pull rod 10 is fixedly connected to one side of the frame 1, which is convenient for the staff to adjust the direction and move when not in use.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A green net laying device for construction sites, comprising a frame (1), characterized in that, A first transmission shaft (2) is movably installed at the top of the frame (1). A green mesh roll (3) is fixedly installed on the outer diameter of the first transmission shaft (2). A laying mechanism (5) is provided on one side of the lower part of the frame (1). A compaction mechanism (6) is provided at the bottom of the frame (1). A tensioning mechanism (7) is provided on one side of the upper part of the frame (1). A pressure roller (8) is movably installed on one side of the bottom of the frame (1) close to the compaction mechanism (6). The laying mechanism (5) includes a second transmission shaft (501) and a rotating shaft (503). The second transmission shaft (501) is movably installed on one side of the lower part of the frame (1). The rotating shaft (503) is movably arranged above the second transmission shaft (501). A laying roller (504) is fixedly installed on the outer diameter of the rotating shaft (503). The compaction mechanism (6) includes a third transmission shaft (601) and two activity chambers (603). The third transmission shaft (601) is movably installed in the middle of the frame (1). The activity chambers (603) are fixedly connected to the bottom of the frame (1).

2. The green net laying device for a construction site according to claim 1, characterized in that, A three-phase asynchronous motor (4) is fixedly installed on one side of the top of the frame (1), and the driving end of the three-phase asynchronous motor (4) is connected to the outer diameter of one side of the first transmission shaft (2) through a reduction device. Transmission gears (11) are fixedly connected to the outer diameter of one side of the first transmission shaft (2), the second transmission shaft (501), and the third transmission shaft (601). The outer diameters of the transmission gears (11) are connected by a gear belt (12).

3. The green net laying device for a construction site according to claim 1, characterized in that, A plurality of tensioning rollers (502) are movably installed on the outer diameter of the second transmission shaft (501) through supports. A plurality of pointed protrusions (505) are evenly fixedly connected to the surface of the laying roller (504). Synchronous wheels (506) are fixedly installed on the outer diameter of one side of the second transmission shaft (501) and the rotating shaft (503). The outer diameters of the synchronous wheels (506) are connected by a synchronous belt (507).

4. A green net laying device for a construction site according to claim 1, characterized in that, A worm (602) is fixedly installed on the middle outer diameter of the third transmission shaft (601). A connecting seat (608) is fixedly welded in the middle of the inner side end of the activity chamber (603). A rotating rod (609) is movably installed in the middle of the top end of the connecting seat (608). A worm gear (610) is fixedly installed at the top end of the rotating rod (609), and the inner side ends of the worm gear (610) and the worm (602) are meshed and connected.

5. The green net laying device for a construction site according to claim 4, characterized in that, Pressure blocks (604) are movably installed on the upper sides inside the activity chambers (603). The bottom ends of the pressure blocks (604) are connected to brackets (606) through first springs (605). Pressure rollers (607) are movably installed at the bottom ends of the brackets (606).

6. The laying device for green nets on a construction site according to claim 5, characterized in that, A cylinder block (611) is fixedly installed on the middle outer diameter of the rotating rod (609). A ball groove is obliquely arranged on the outer diameter of the cylinder block (611), and an obliquely installed bearing seat (612) is movably installed in the ball groove. Swing rods (613) are fixedly connected to both ends of the obliquely installed bearing seat (612), and the ends of the swing rods (613) are respectively movably installed on the tops of the corresponding pressure blocks (604).

7. The green net laying device for a construction site according to claim 1, wherein The tensioning mechanism (7) includes two fixing frames (701). The outer ends of the fixing frames (701) are movably connected to the machine frame (1) through two guide rods (702). Moving blocks (703) are movably installed on the upper sides inside the guide rods (702). A number of pressing wheels (704) are movably installed at the bottom ends of the moving blocks (703) and on the bottom walls of the fixing frames (701). Both sides of the top ends of the moving blocks (703) are connected to the top walls of the fixing frames (701) through second springs (705). The middle parts of the top ends of the moving blocks (703) extend above the fixing frames (701) through straight rods and are fixedly connected to lifting pull rods (706). Threaded rods (707) are threadedly connected to the middle parts of the fixing frames (701). The outer ends of the threaded rods (707) are fixedly connected to handwheels (708).

8. A green net laying device for construction sites according to claim 1, characterized in that, A traveling drive mechanism (9) is provided at the bottom end of the machine frame (1). A pull rod (10) is fixedly connected to one side of the machine frame (1).

Images