A vegetation blanket laying device and laying method for ecological restoration in permafrost areas

Abstract

The present invention discloses a vegetation blanket laying device and laying method for ecological restoration in permafrost areas, wherein a cavity for storing heavy objects is provided inside the first traveling wheel of the laying device, and a discharge port connected to the cavity is provided on its annular outer surface, an arc-shaped storage trough for storing vegetation rolls is provided above the frame, and a laying box for placing vegetation rolls to be laid is provided below the frame; in the present invention, heavy objects are discharged from the cavity onto the vegetation blanket through the discharge port, and the unfolded part of the vegetation blanket is compacted and fixed to prevent it from being blown away by the wind, thereby realizing efficient and rapid laying of the vegetation blanket and significantly improving the construction efficiency of ecological restoration in permafrost areas.

Description

Technical Field

[0001] The present invention relates to the technical field of ecological restoration, and in particular to a vegetation blanket laying device and a laying method for ecological restoration in permafrost areas. Background Art

[0002] Ecological restoration in permafrost regions is a key area of ​​research and practice in the context of global climate change. Permafrost regions possess unique soil thermodynamic properties and a fragile ecosystem, making restoration extremely challenging once damaged. Because the surface soil in permafrost regions is loose and sparsely covered with vegetation, they are susceptible to external forces such as wind and water erosion, leading to further soil degradation and posing a serious threat to the regional ecological balance. Therefore, rapid vegetation restoration and surface soil stabilization, such as through the laying of vegetation blankets, are common methods of ecological restoration in permafrost regions.

[0003] Existing vegetation blanket laying technology mainly relies on manual operation, and has problems such as low construction efficiency, high labor intensity, and poor compaction effect. In addition, when traditional laying devices are used in permafrost areas, the construction effect is often affected due to insufficient environmental adaptability. For example, the high hardness of the soil and the strong effect of wind in a low-temperature environment may cause the laying of the vegetation blanket to be unstable, easily blown away by the wind or fail to effectively fit the surface. Therefore, there is an urgent need for a professional vegetation blanket laying device and method designed for permafrost areas to adapt to its special geological and climatic conditions, ensure the rapid and efficient laying of the vegetation blanket, and at the same time improve the compaction effect to promote the long-term and stability of ecological restoration. Summary of the Invention

[0004] The purpose of the present invention is to provide a vegetation blanket laying device for ecological restoration in permafrost areas in order to address the technical defects of low laying efficiency and poor compaction effect of vegetation blankets in the prior art.

[0005] Another object of the present invention is to provide a laying method based on the vegetation blanket laying device.

[0006] The technical solution adopted to achieve the purpose of the present invention is:

[0007] A vegetation blanket laying device for ecological restoration in frozen soil areas comprises a frame, a first running wheel arranged at the rear side of the bottom of the frame, a second running wheel arranged at the front side of the bottom of the frame, an arc-shaped storage trough arranged at the top of the frame for storing vegetation rolls, a distributor connected to the lower end notch of the arc-shaped storage trough, a laying box located below the distributor, a positioning mechanism located in the laying box for positioning the vegetation rolls, and a driving mechanism for driving the distributor and the positioning mechanism, wherein:

[0008] The vegetation roll includes a drum and a vegetation blanket wound on the drum;

[0009] A cavity for storing heavy objects is provided inside the first traveling wheel, and a discharge port communicating with the cavity is provided on the annular outer surface of the first traveling wheel;

[0010] A blanking port is provided on the frame, and the blanking port is located at the top port of the laying box;

[0011] The divider is driven to rotate by the driving mechanism, and the divider is cylindrical. An opening for the vegetation roll to enter is provided on the side wall plate of the divider. When the opening faces the lower notch of the arc-shaped storage trough, the vegetation roll enters the divider under the action of gravity and rotates with the divider. When the opening faces the laying box, the vegetation roll enters the laying box through the drop opening under the action of gravity, and the unopened side of the side wall plate rotates to the lower notch of the arc-shaped storage trough to seal it.

[0012] The positioning mechanism includes two support plates relatively arranged on the front and rear sides of the laying box and two sets of telescopic positioning components relatively arranged on the left and right sides of the laying box, the two support plates forming a "V"-shaped groove for supporting the vegetation roll, and each set of the telescopic positioning components including a guide cylinder fixed to the side wall of the laying box and an insertion rod inserted into the guide cylinder through a first elastic member;

[0013] The transmission gear of the present invention is a gear which is connected to the gear of the driven gear by the toothed link, and the gear is connected with the toothed link to form a gear. The gear is connected with the toothed link to form a gear. The toothed link is connected with the gear of the driven gear by the toothed link.

[0014] A power box is provided on the front side of the laying box, two rollers are arranged opposite to each other in the power box, an avoidance opening is provided on the partition adjacent to the power box and the laying box, and a vegetation blanket outlet is opened at the bottom of the power box; the laying box and the power box are respectively provided with operating doors.

[0015] In the above technical solution, the distributor includes two discs and an arc-shaped grooved drum fixedly arranged between the two discs, and the opening is arranged on the arc-shaped grooved drum.

[0016] In the above technical solution, a limiting ring is fixed to the inner end of the guide cylinder, a convex ring is fixed to the insertion rod, and a first elastic member is provided between the limiting ring and the convex ring.

[0017] In the above technical solution, the first elastic member is a spring.

[0018] In the above technical solution, a gear is coaxially fixedly connected to each roller, and the two gears are meshed and connected. A second motor is fixed on the outer wall of the power box, and one gear is fixedly connected to the output end of the second motor.

[0019] In the above technical solution, the top of the support plate is hinged on the inner wall of the laying box, and a support rod is installed between the bottom of the support plate and the inner wall of the laying box. The support rod is a cylinder or an electric push rod. The bottom of the support rod is rotatably connected to the inner wall of the laying box, and the top of the support rod is rotatably connected to the bottom of the support plate.

[0020] In the above technical solution, a waste door is opened at the bottom of the laying box, and the lower end of the "V"-shaped groove forms a waste opening for the roll to pass through, and the width of the waste opening is greater than the outer diameter of the roll.

[0021] In the above technical solution, a guide tube is provided at the bottom of the power box, and a guide hole is opened at the bottom of the guide tube. The second walking wheel includes a "T"-shaped guide rod slidably connected to the guide hole, and a "U"-shaped frame is fixed to the lower end of the "T"-shaped guide rod. Rollers are rotatably connected between the two side walls of the "U"-shaped frame. A second elastic member is provided between the "U"-shaped frame and the guide tube.

[0022] In the above technical solution, the second elastic member is a spring.

[0023] In another aspect of the present invention, a method for laying the vegetation blanket for permafrost ecological restoration comprises the following steps:

[0024] Place the spare vegetation rolls in the arc-shaped storage trough in sequence, and fill heavy objects such as soil into the cavity inside the first traveling wheel through the discharge port;

[0025] Start the first motor, which drives the divider to rotate. The divider transfers the vegetation roll in the arc-shaped storage trough to the "V"-shaped groove of the laying box. The "V"-shaped groove supports the vegetation roll. When the first motor is started, it drives the turntable to rotate. The turntable drives the wedge plate to move vertically downward through the connecting rod and the sliding rod. The inclined surface of the wedge plate squeezes the insertion rod inward, and the insertion rod is inserted into the reel in the center of the vegetation roll;

[0026] Pull one end of the vegetation blanket out of the avoidance opening, pass it between the two rollers, take it out from the vegetation blanket outlet, and press it under the second and first travel wheels;

[0027] The first motor is turned off, and the frame is pushed forward. Driven by the first and second traveling wheels, the frame moves on the road surface, so that the vegetation blanket is gradually unfolded from the vegetation roll and laid on the road surface. The heavy object is discharged from the cavity through the discharge port onto the vegetation blanket, compacting and fixing the vegetation blanket.

[0028] During the laying process, the radial dimension of the vegetation roll is reduced, causing the vegetation roll to break away from the support of the "V"-shaped groove and hang in the air;

[0029] When the vegetation roll in the laying box is completely laid, the first motor is started again, and the first motor drives the divider to rotate again, and the vegetation roll at the bottom in the arc-shaped storage trough is sent into the laying box, and then the vegetation blanket on the vegetation roll inside the laying box is pulled out from the avoidance port and the vegetation blanket outlet, and the moving frame continues to be laid.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention utilizes a driving mechanism to simultaneously drive a distributor for controlling material dropout and a positioning mechanism for positioning vegetation rolls, thereby improving the stability and reliability of mechanical operation, simplifying the driving system of the equipment, reducing manufacturing costs, and facilitating large-scale promotion and application.

[0032] 2. When the vegetation roll is subjected to large friction and cannot be unfolded, the second motor can be used to drive the roller to pull the vegetation blanket in the vegetation roll to ensure continuous output of the vegetation blanket and improve the continuity of the vegetation blanket laying operation.

[0033] 3. After the vegetation blanket is gradually unfolded and laid on the road surface, the heavy object is discharged from the cavity onto the vegetation blanket through the discharge port, compacting and fixing the unfolded part of the vegetation blanket to prevent it from being blown away by the wind, reducing erosion and scouring of the soil in the permafrost area, reducing surface water and soil loss, and achieving a heat preservation effect to improve the survival rate of vegetation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0036] Figure 3 Schematic diagram of the structure of the material distributor of the present invention;

[0037] Figure 4 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0038] Figure 5 This is a schematic diagram of the main structure of the power box of the present invention;

[0039] Figure 6This is a schematic diagram of the rear view structure of the power box of the present invention;

[0040] Figure 7 This is a schematic diagram of the cross-sectional structure of the first traveling wheel.

[0041] In the figure: 1, frame; 2, first running wheel; 3, second running wheel; 301, "U"-shaped frame; 302, roller; 303, "T"-shaped guide rod; 304, second elastic member; 4, laying box; 5, vegetation roll; 6, avoidance port; 7, drop port; 8, material distributor; 801, disc; 802, arc-shaped groove drum; 9, arc-shaped storage trough; 10, support rod; 11, support plate; 12, reel; 13, waste door; 14, guide cylinder; 15, insertion rod; 16 , limiting ring; 17, convex ring; 18, first elastic member; 19, first motor; 20, driving gear; 21, driven gear; 22, turntable; 23, connecting rod; 24, guide groove; 25, slide bar; 26, wedge plate; 27, guide hole; 28, power box; 29, roller; 30, gear; 31, second motor; 32, cavity; 33, discharge port; 34, vegetation blanket outlet; 35, guide tube; 36, connecting shaft; 37, positioning block; 38, waste port. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] Example 1

[0044] A vegetation blanket laying device for ecological restoration in frozen soil areas comprises a frame 1, a first running wheel 2 arranged at the rear side of the bottom of the frame 1, a second running wheel 3 arranged at the front side of the bottom of the frame 1, an arc-shaped storage trough 9 arranged on the top of the frame 1 for storing vegetation rolls 5, a distributor 8 connected to the lower end notch of the arc-shaped storage trough 9, a laying box 4 located below the distributor 8, a positioning mechanism located in the laying box 4 for positioning the vegetation roll 5, and a driving mechanism for driving the distributor 8 and the positioning mechanism, wherein:

[0045] The vegetation roll 5 includes a drum 12 and a vegetation blanket wound on the drum 12;

[0046] A cavity 32 for storing heavy objects is formed inside the first running wheel 2, and a discharge port 33 communicating with the cavity 32 is formed on the annular outer surface of the first running wheel 2;

[0047] The frame 1 is provided with a blanking port 7, and the blanking port 7 is located at the top port of the laying box 4;

[0048] The divider 8 is driven to rotate by the driving mechanism. The divider 8 is cylindrical. An opening 803 is provided on the side wall plate of the divider 8 for the vegetation roll 5 to enter. When the opening 803 is toward the lower end slot of the arc-shaped storage trough 9, the vegetation roll 5 enters the divider 8 under the action of gravity. As the divider 8 rotates, when it rotates until the opening 803 is toward the laying box 4, the vegetation roll 5 enters the laying box 4 through the drop opening 7 under the action of gravity, and the unopened side of the side wall plate rotates to the lower end slot of the arc-shaped storage trough 9 to seal it. Preferably, the divider 8 includes two discs 801 and an arc-shaped groove drum 802 fixedly arranged between the two discs 801, and the opening 803 is arranged on the arc-shaped groove drum 802. During the rotation of the divider 8, when the opening 803 is toward the lower end, the vegetation roll 5 at the lower end will fall into the arc-shaped groove drum 802 and rotate together with the divider 8;

[0049] The positioning mechanism includes two support plates 11 relatively arranged on the front and rear sides of the laying box 4 and two groups of telescopic positioning components relatively arranged on the left and right sides of the laying box 4. The two support plates 11 form a "V"-shaped groove for supporting the vegetation roll 5. Each group of the telescopic positioning components includes a guide cylinder 14 fixed to the side wall of the laying box 4 and an insertion rod 15 inserted into the guide cylinder 14 through a first elastic member 18. Preferably, a limit ring 16 is fixed to the inner end of the guide cylinder 14, a convex ring 17 is fixed to the insertion rod 15, and a first elastic member 18 is provided between the limit ring 16 and the convex ring 17. More preferably, the first elastic member 18 is a spring. Under the action of the first elastic member 18, the insertion rod 15 can be extended and retracted.

[0050] The driving mechanism includes a first motor 19, a driving gear 20 fixed to the output end of the first motor 19, a driven gear 21 meshing with the driving gear 20, and a connecting shaft 36 coaxially fixedly connected to the driven gear 21, one end of the connecting shaft 36 is fixedly connected to the distributor 8, and a turntable 22 is coaxially fixed to the other end of the distributor 8. The other end of the distributor 8 is also coaxially fixedly connected to a turntable 22, and each turntable 22 is connected to a set of clamping components, and the clamping component includes a connecting rod 23 eccentrically connected to the turntable 22, a positioning block 37 is fixed on the side wall of the laying box 4, and a guide groove 24 is provided on the positioning block 37, and a slide rod 25 is slidably provided in the guide groove 24, and the top of the slide rod 25 is hinged to the connecting rod 23, and a wedge plate 26 is fixed on the inner side surface of the bottom of the slide rod 25. The outer end of the insertion rod 15 is in close contact with the inclined surface of the wedge plate 26 under the elastic force of the first elastic member 18;

[0051] A power box 28 is provided on the front side of the laying box 4. Two rollers 29 are arranged opposite to each other in the power box 28. An avoidance opening 6 is provided on the partition adjacent to the power box 28 and the laying box 4. A vegetation blanket outlet 34 is opened at the bottom of the power box 28.

[0052] The working method of the vegetation blanket laying device for permafrost area ecological restoration is as follows:

[0053] The spare vegetation rolls 5 are sequentially placed in the arc-shaped storage trough 9, and heavy objects such as soil are filled into the cavity 32 in the first running wheel 2 through the discharge port 33;

[0054] Start the first motor 19, the first motor 19 drives the divider 8 to rotate, the divider 8 transfers the vegetation roll 5 in the arc-shaped storage trough 9 to the "V"-shaped groove of the laying box 4, and the "V"-shaped groove supports the vegetation roll 5. When the first motor 19 is started, it drives the turntable 22 to rotate. The turntable 22 drives the wedge plate 26 to move vertically downward through the connecting rod 23 and the sliding rod 25. The inclined surface of the wedge plate 26 squeezes the insertion rod 15 inward, and the insertion rod 15 is inserted into the reel 12 in the center of the vegetation roll 5, which is conducive to reducing manual labor intensity and increasing the laying speed. In order to make the insertion rod 15 smoothly inserted into the reel 12, the diameter of the reel 12 can be appropriately enlarged;

[0055] One end of the vegetation blanket is pulled out from the avoidance opening 6, then passed between the two rollers 29, taken out from the vegetation blanket outlet 34, and pressed under the second running wheel 3 and the first running wheel 2. The laying box 4 and the power box 28 are respectively provided with operating doors to facilitate manual pulling of the vegetation blanket;

[0056] The first motor 19 is turned off, and the frame 1 is pushed forward. Driven by the first and second running wheels 2 and 3, the frame 1 moves on the road surface, so that the vegetation blanket is gradually unrolled from the vegetation roll 5 and laid on the road surface. The heavy object is discharged from the cavity 32 through the discharge port 33 onto the vegetation blanket, compacting and fixing the vegetation blanket.

[0057] During the laying process, the radial dimension of the vegetation roll 5 is reduced, so that the vegetation roll 5 is separated from the support of the "V"-shaped groove and suspended in the air, which reduces the friction resistance encountered by the vegetation roll 5 when unfolding, makes it easier to unfold the vegetation roll 5, and increases the laying speed;

[0058] When the vegetation roll 5 in the laying box 4 is completely laid, the first motor 19 is started again, and the first motor 19 drives the divider 8 to rotate again, and the vegetation roll 5 at the bottom in the arc-shaped storage trough 9 is sent into the laying box 4, and then the vegetation blanket on the vegetation roll 5 inside the laying box 4 is pulled out from the avoidance port 6 and the vegetation blanket outlet 34, and the moving frame 1 continues to be moved for laying.

[0059] Example 2

[0060] In this embodiment, based on the first embodiment, a drive is added to the roller 29 . When the vegetation blanket is subjected to a large friction force and cannot be unfolded, the vegetation blanket on the vegetation roll 5 can be pulled by the roller 29 .

[0061] A gear 30 is coaxially fixedly connected to each roller 29 , and the two gears 30 are meshed and connected. A second motor 31 is fixed on the outer wall of the power box 28 , and one gear 30 is fixedly connected to the output end of the second motor 31 .

[0062] When the vegetation blanket is subjected to large friction and cannot be unfolded, the second motor 31 is started. The second motor 31 drives the gear 30 fixedly connected to its output end to rotate, and the gear 30 drives another gear 30 to rotate in the opposite direction, thereby driving the two rollers 29 to rotate in the opposite direction. Under the conveying action of the two rollers 29, the vegetation blanket is unfolded, which is conducive to reducing manual labor intensity and increasing the laying speed.

[0063] Example 3

[0064] In order to make the laying device suitable for vegetation rolls 5 of different sizes, the support plate 11 is arranged on the inner wall of the laying box 4 through the support rod 10 in an angle-adjustable manner.

[0065] The top of the support plate 11 is hinged on the inner wall of the laying box 4, and a support rod 10 is installed between the bottom of the support plate 11 and the inner wall of the laying box 4. The support rod 10 is a cylinder or an electric push rod. The bottom of the support rod 10 is rotatably connected to the inner wall of the laying box 4, and the top of the support rod 10 is rotatably connected to the bottom of the support plate 11. By controlling the extension length of the telescopic end of the cylinder or the electric push rod, the size of the angle between the two support plates 11 can be controlled, so that the central axis of the reel 12 inside the vegetation roll 5 with different outer diameters can correspond to the central axis of the guide cylinder 14, so that the two insertion rods 15 are inserted at both ends of the reel 12.

[0066] Example 4

[0067] In order to automatically discharge the roll 12, this embodiment opens a waste door 13 at the bottom of the laying box 4, and the lower end of the "V"-shaped groove forms a waste opening 38 for the roll 12 to pass through. The width of the waste opening 38 is greater than the outer diameter of the roll 12.

[0068] As the vegetation blanket in the vegetation roll 5 is laid, only the reel 12 is left. The reel 12 will pass through the waste opening 38 and fall to the bottom of the laying box 4. Finally, it will be taken out from the waste door 13 in a unified manner, realizing the automatic centralized collection of the reel 12, reducing manual labor intensity and increasing the laying speed.

[0069] Example 5

[0070] In order to improve the obstacle-crossing capability of the paving device, the first running wheel 2 is improved in this embodiment.

[0071] A guide tube 35 is provided at the bottom of the power box 28, which has a guide hole 27 defined at its bottom. The second running wheel 3 includes a T-shaped guide rod 303 slidably connected to the guide hole 27. A U-shaped frame 301 is fixed to the lower end of the T-shaped guide rod 303. Rollers 302 are rotatably connected between the two side walls of the U-shaped frame 301. A second elastic member 304 is provided between the U-shaped frame 301 and the guide tube 35. More preferably, the second elastic member 304 is a spring. When encountering obstacles such as small rocks during travel, the rollers 302 will compress the second elastic member 304, improving the ability to overcome obstacles. This keeps the rollers 302 rotating, driving the vegetation blanket to unfold and increasing the laying speed.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vegetation blanket laying device for ecological restoration in permafrost areas, characterized in that: The machine comprises a frame, a first running wheel arranged at the rear side of the bottom of the frame, a second running wheel arranged at the front side of the bottom of the frame, an arc-shaped storage trough arranged at the top of the frame for storing vegetation rolls, a distributor connected to the lower end notch of the arc-shaped storage trough, a laying box located below the distributor, a positioning mechanism located in the laying box for positioning the vegetation roll, and a driving mechanism for driving the distributor and the positioning mechanism, wherein: The vegetation roll includes a drum and a vegetation blanket wound on the drum; A cavity for storing heavy objects is provided inside the first traveling wheel, and a discharge port communicating with the cavity is provided on the annular outer surface of the first traveling wheel; A blanking port is provided on the frame, and the blanking port is located at the top port of the laying box; The divider is driven to rotate by the driving mechanism, and the divider is cylindrical. An opening for the vegetation roll to enter is provided on the side wall plate of the divider. When the opening faces the lower notch of the arc-shaped storage trough, the vegetation roll enters the divider under the action of gravity and rotates with the divider. When the opening faces the laying box, the vegetation roll enters the laying box through the drop opening under the action of gravity, and the unopened side of the side wall plate rotates to the lower notch of the arc-shaped storage trough to seal it. The positioning mechanism includes two support plates relatively arranged on the front and rear sides of the laying box and two sets of telescopic positioning components relatively arranged on the left and right sides of the laying box. The two support plates form a "V"-shaped groove for supporting the vegetation roll. Each set of the telescopic positioning components includes a guide cylinder fixed to the side wall of the laying box and an insertion rod inserted into the guide cylinder through a first elastic member. The transmission gear of the present invention is a gear which is connected to the gear of the driven gear by the toothed link, and the gear is connected with the toothed link to form a gear. The gear is connected with the toothed link to form a gear. The toothed link is connected with the gear of the driven gear by the toothed link. A power box is provided at the front side of the laying box, two rollers are arranged opposite to each other in the power box, an avoidance opening is provided on the partition adjacent to the power box and the laying box, and a vegetation blanket outlet is opened at the bottom of the power box.

2. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: The material distributor comprises two discs and an arc-shaped grooved drum fixedly arranged between the two discs, and the opening is arranged on the arc-shaped grooved drum.

3. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: A limiting ring is fixed on the inner end of the guide cylinder, a convex ring is fixed on the inserting rod, and a first elastic member is arranged between the limiting ring and the convex ring.

4. The vegetation blanket laying device for permafrost area ecological restoration according to claim 3, characterized in that: The first elastic member is a spring.

5. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: A gear is coaxially fixedly connected to each roller, and the two gears are meshed and connected. A second motor is fixed on the outer wall of the power box, and one gear is fixedly connected to the output end of the second motor.

6. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: The top of the support plate is hinged on the inner wall of the laying box, and a support rod is installed between the bottom of the support plate and the inner wall of the laying box. The support rod is a cylinder or an electric push rod. The bottom of the support rod is rotatably connected to the inner wall of the laying box, and the top of the support rod is rotatably connected to the bottom of the support plate.

7. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: A waste door is provided at the bottom of the laying box, and the lower end of the "V"-shaped groove forms a waste opening for the roll to pass through, and the width of the waste opening is greater than the outer diameter of the roll.

8. The vegetation blanket laying device for permafrost area ecological restoration according to claim 1, characterized in that: A guide tube is provided at the bottom of the power box, and a guide hole is opened at the bottom of the guide tube. The second walking wheel includes a "T"-shaped guide rod slidably connected to the guide hole, and a "U"-shaped frame is fixed to the lower end of the "T"-shaped guide rod. Rollers are rotatably connected between the two side walls of the "U"-shaped frame, and a second elastic member is provided between the "U"-shaped frame and the guide tube.

9. The vegetation blanket laying device for permafrost area ecological restoration according to claim 8, characterized in that: The second elastic member is a spring.

10. The method for laying a vegetation blanket for permafrost region ecological restoration according to claim 1, characterized in that: The following steps are involved: Place the spare vegetation rolls in the arc-shaped storage trough in sequence, and fill heavy objects such as soil into the cavity inside the first traveling wheel through the discharge port; Start the first motor, which drives the divider to rotate. The divider transfers the vegetation roll in the arc-shaped storage trough to the "V"-shaped groove of the laying box. The "V"-shaped groove supports the vegetation roll. When the first motor is started, it drives the turntable to rotate. The turntable drives the wedge plate to move vertically downward through the connecting rod and the sliding rod. The inclined surface of the wedge plate squeezes the insertion rod inward, and the insertion rod is inserted into the reel in the center of the vegetation roll, which helps to reduce manual labor intensity and increase the laying speed. Pull one end of the vegetation blanket out of the avoidance opening, pass it between the two rollers, take it out from the vegetation blanket outlet, and press it under the second and first travel wheels; The first motor is turned off, and the frame is pushed forward. Driven by the first and second traveling wheels, the frame moves on the road surface, so that the vegetation blanket is gradually unfolded from the vegetation roll and laid on the road surface. The heavy object is discharged from the cavity through the discharge port onto the vegetation blanket, compacting and fixing the vegetation blanket. During the laying process, the radial dimension of the vegetation roll is reduced, causing the vegetation roll to break away from the support of the "V"-shaped groove and hang in the air; When the vegetation roll in the laying box is completely laid, the first motor is started again, and the first motor drives the divider to rotate again, and the vegetation roll at the bottom in the arc-shaped storage trough is sent into the laying box, and then the vegetation blanket on the vegetation roll inside the laying box is pulled out from the avoidance port and the vegetation blanket outlet, and the moving frame continues to be laid.

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